Victron multiplus not charging. Battery is a DIY-48V 280Ah with a JK Inverter BMS.

Victron multiplus not charging Customer reseted system (turning off Multiplus by the phisical button and also disconnecting 12V mains) Nothing changed. I just use a 15a 120v shore power connection but it never goes into bulk mode like the MPPT 100/50, or as it used Troubleshoot your Victron MultiPlus/Quattro inverter with our step-by-step guide and checklist, designed to help you identify and resolve common system issues. The 6. So far, everything seems to work, BUT: When I set the Multiplus to “Charge only” mode, it does exactly charge only once. On the Venus I use a self-developed Python script that reduces the maximum charge current at low or high battery temperatures. Once the sun goes down, the batteries read as dead. The system supplies both 120V and 240V loads perfectly, with the ground relay disabled on both inverters. I have a multiplus 12/3000/120 and would like to upgrade to allow for higher output as well as higher charging rates. At times it goes to Charger in Absortion mode but is not charging. Our house batteries 2 new RELiON LiFePO4 batteries with 600 amp hours total capacity. The worst part is now I can’t locate the settings for the batteries to even see what might be Jul 18, 2023 · Multiplus 48/3000 shows shore power 235v at 50Hz on ac input but dose not switch to use the shore power When i switch on and connect to the shore power the AC led lights up for a short while then a relay clicks and the LED goes out and only battery power is used. Troubleshoot your Victron MultiPlus/Quattro inverter with our step-by-step guide and checklist, designed to help you identify and resolve common system issues. So somthing is up and im not sure how to fix this one. I have 2 multiplus-II set up as split units. The Lynx BMS is connected to a Cerbo GX. This may be related to a firmware update that I did yesterday. This is even with excess PV power that is being fed to the grid and the batteries at a relatively low SOC of 60% and a corresponding voltage of 54. 5 in a trailer to take power from grid (16A 230V). The setup has worked for about a year and a half now but all of a sudden the Victron refuses to charge the batteries. I suspect something is off with my settings as the batteries are only at 90% even at absorption charge with zero amps going to the batteries. Instead, Multi automatically switches to whatever mode was active when external power removed (Absorption or Float). I have had no issues with this problem in the past 3 years. Grid passthru and converter works well. When set to charging only mode it appears to pull the correct amount of power, but I really need to run in inverter mode so the batteries can make up the extra power if needed. Active AC Input reads as Disconnected. Inverter and charger. This does not seem to work. I set the inverter for LiFePo4 batteries via the dip switches ( dip 2 on, store settings by cycling Apr 22, 2022 · I currently have a Victron Multiplus Compact 12/2000/80-50 120 inverter/charger c/w Victron Digital Multi Control installed in my motorhome. I have to go back to my victron installers soon so will ask about it. I've got a Cerbo GX /Touch 50 on it and I have tried with and without DVCC and within DVCC I've set the charge max to May 20, 2023 · Today we came into a marina, I plugged in and the Multiplus ii is showing "BULK", but the batteries are discharging, rather than charging. The solar panels aren’t charging the battery, even though it’s a sunny day. 0 and my battery Sep 1, 2024 · I have Vectron Multiplus installed and and 15 kW batteries in my RV. The battery reports its max Aug 8, 2022 · That's not an ideal situation. Here is my issue. I hooked it up to a lithium house battery. But no charging is happening. Aug 18, 2025 · The inability for my MultiPlus to charge from the Ford Pro Power outlet seems to be a broader hardware compatibility issue, not local to my installation- and I have abandoned that plan for DC-to-DC charging in the future. I write this values via dbus to: com Jan 23, 2021 · If I disconnect the GX from the MultiPlus2 even at night it wants to charge the battery, not sure i remember it doing this previously. Jun 18, 2021 · Can the MultiPlus-II charge a separate (different type) starter battery, or I should plug it into a separate trickle charger? I noticed that the MultiPlus had a separate starter battery connection but it no longer seems to be there in the MultiPlus-II. Setting this disables charging not only via AC but also prevents May 28, 2019 · Multiplus II not charging I have a new Multiplus II 48/3000 installation with 4 x 200ah gel batteries. Occasional reader; first time with a question. Mar 6, 2025 · Hello, I have a 3-phase instasllation with 6 Multiplus 48/5000/70, 3 MPPTs and 6 Pylontech US5000 batteries. On the Color control pages - you can see the incoming voltage and frequency from the generator but charger won’t switch to charge mode. 0 Battery CCGX Using ESS Assistant The inverter keeps on failing on low battery although battery is 58V. Jan 31, 2025 · I purchased the Victron MultiPlus-II 48/5000/70 with the understanding that it would operate within a voltage range of up to 66V. My goal is to use the charge switch to allow the Multiplus to charge and absorb up to 28. Currently, I’m on 30 amp power and grid current limit is set to 30. is this temperature related? MultiPlus 12|1200|50 not turning on, not charging, nothing Hi, I'm new here. It basically will not turn on. I have a 50A RV with a Victron MultiPlus II inverter/charger and Cerbo GX, professionally installed by others January 2025 along with 1600 W of solar and (2) Victron MPPT. The issue is that my multiplus ii does not charge from grid. Jul 13, 2021 · When AC input is active, the inverter is in passthru mode, i. I added another Multiplus-II 48/5000/70-50. Tracking down why one of my victron multi plus units is not charging. It is hooked up to 4x190AH AGMs in series. 6-58. Why is this happening? Does somebody know what the issue may be? Jun 1, 2023 · Hey guys, Having a problem with the charging on my Multiplus II (12v). The other has two problems: The batteries never go into absorption charge, they jump straight from bulk to float when the SOC is 85%. 0 Not Charging We are installing the following system: Multiplus II (48V) MPPT 250/60 tr (DC Coupled) BMZ ESS 7. I am on 50A service and there is no charging of the batteries. I set the maximum AC input to 4 amps. The BMS is connected via CAN and acts as the controlling BMS for the Victron system. It is still happening but I have managed to get batteries charged up to 80% (using solar, which is not Mar 13, 2025 · Yesterday customer went to a Campsite to charge batteries, because he was at 20% (12. I have a Victron system configured with two MultiPlus-II 48/3000/35-50 inverters in a split-phase setup. They drained to shut off point (below 10v), once the sun came up this morning my solar started to charge them, but the MultiPlus-II is only in Float mode. Nov 15, 2024 · I have a new Multiplus 12/1200/50-120V installed in a camper van. It might get to 52A but just briefly. I turned the other one Hello, I'm seeing the same thing with my MultiPlus 12/3000/120. But, if I wanted to force it to bulk anyway, regardless of the voltage, without resetting it and losing Nov 8, 2024 · I recently installed a Multiplus 2, Smart Shunt 1000, Cerbo GX, MPPT and display. The battery bank consists of 4 x 100 Ah Battle Born Lithium batteries. Any thought? The motorhome is plugged into 20 amp circuit with the multiplus set to 18 amp input. My system will charge my 6 105ah lithiums from solar with no problem, but will not charge at all Jan 20, 2025 · Hello everyone, I hope you’re doing well. I have tried a different generator - same issue. I had a single 48/3000 multiplus 2 and this would work great. Mar 29, 2025 · Looking for some troubleshooting ideas. As soon as I dock and connect shore power the Victron used to start charging, but it doesn't anymore. The battery is not showing in the Victron app, the BMS has a red light (cell >4V or temperature), and the MultiPlus indicates low battery. The first time this happened the batteries were only at 66% when it went into absorbtion mode. 5V. Want to have the batteries between 60-80% SOC for better battery life. I kind of corrected this by Apr 16, 2024 · According to the Victron expert, it should not be an issue at all, the multiplus II should change the operations of charging to inverting within a quarter sinus. 3. Likewise, if I’m on generator I would not use the Multiplus and would like to use charge only until the batteries top off. When i set the multiplus in invertmode the grid gets lost and the feedin surplus solarpower stops feeding the grid Dec 22, 2021 · I have an "off grid" setup which uses a 48v MultiPLus II, Cerbo GX, a couple of MPPT Charge controllers and a 48v LiFEPO4 battery. I want to limit the charge current to the batteries. When Mar 16, 2025 · Funny you should say that i have also noticed my multiplus 11 3000 inverts when in charge mode only. I turned on the charger and it was not charging my batteries. 3V Still Victron showing about 62A in victron connect but real amps about 52A. I have correctly configured the Multiplus for the right battery type, but strangely it doesn’t charge with full power. You may have a poor connection between the inverter and the batteries with a high resistance that is allowing enough power through to start it up, but not enough for higher current charging. When I plug it into the electrical network, it operates in “pass-through” mode. I’m also running into Nov 14, 2024 · The Limit charge current functionality of DVCC does not seem to be working for me. There is also a SmartSolar MPPT and MultiPlus 3000 in the mix. At first things worked as expected. We have MultiPlus 12/2000 and Smart BMV-712 controller installed in our sailboat, which has been connected to 240VAC/50amp shore power for the past 2 weeks. Nov 26, 2024 · Hello Community, I have searched this forum through but could not find any answer - good moment to sign up and become an active member 🙂 I have difficulties to charge my batteries with a generator. I’m experiencing an issue with my MultiPlus Compact 24/2000/50 while it’s operating as a charger. My RV is set up to automatically switch between shore power to generator when the generator is running. When external power is restored, Mutli does not switch to Bulk mode, even if battery level demands Bulk mode. xx to 522 Now, when I turn on the generator it starts either in Absorption or Float although the SOC is low enough. Aug 19, 2023 · MultiPlus 24/3000/70-50 120V connected with USB VE. Everything was working at home on Friday night when I came to my campsiteon Friday something happened the system and it rebooted after that it only worked with grid. Can 250/85 rev2-BMV-712 Smart-MultiPlus-II 48/5000/70-48 and a Cerbo GX with 30kw/h batteries. This will produce 100 amp Sep 30, 2024 · I have an off grid solar system which has a multiplusII 48/5000/70, recently when I connect my generator, the Multiplus keeps dropping out of the charging process and won’t charge my batteries. Nov 21, 2024 · Not a new system or setting, but today, my scheduled charge event didn’t work correctly. I activated Jun 2, 2021 · I have a multiplus 24/3000 that should be capable of charging at 70A. Currently, I’m on 30 amp power and grid A discussion community about Victron Energy (the company, their products, and things that interoperate with their products). Dec 18, 2024 · Hi out there, I’ve started to build my ESS system consisting of Multiplus-II, Cerbo GX, and two Pytes ebox 48100R yesterday. 8V} below the configured float voltage for the {12V, 24V, 48V} charger. Last night, we were trying to cool the RV and the Power Assist (which is Nov 16, 2024 · Hi all, Since yesterday, I’ve been experiencing an issue with my electrical system. 6. When Forced Absorption mode is active, the ‘absorption’ LED is Jun 10, 2025 · I have a system composed of Victron Lithium Smart batteries connected to a Lynx BMS. I see I’m not the only one, reading the topics here and Sep 11, 2024 · Hi All, My multiplus II 5000 is not inverting except when I cut the grid. I have tested the voltage across each battery (when low) all except Dec 10, 2022 · Multiplus-II AC1-in Generator - not charging (VRM) Hi, as cloudy days arrived with snow, I want to charge my 4 Pylontechs US3000C with juice from Gen. The Multiplus is set to switch back to line power at about 24 V and go back to battery at about 26V. Nov 13, 2024 · I am solving a problem when charging the battery with MultiPlus 24/1200/25. This will allow AC to passthrough without charging your battery. No apparent loose wires/connections. BUT no way says Victron - I am not allowed to make this tiny change to make my system work, and prevent my batties going flat, unless I have done a Victron course and got a password ! Huh? Jul 20, 2019 · Multiplus-II 48/5000/70-50 BMZ ESS 7. Jun 25, 2025 · Looking for some troubleshooting ideas. But two days ago, the multiplus has stopped charging the batteries and the batteries are completely out of battery at the moment. The battery is 16 cells of LiFePO4, per datasheet has a charging voltage of 57. I have run the engine which has charged the batteries back up to 50% SOC over a few hours but the Multiplus still won’t charge the Jul 12, 2024 · When I click my Multiplus II on Victron Connect , I am presented with options for VRM Online Portal or Remote Console , neither of which has enable/disable charger function capability as far as I can see. I was instructed to do this twice. 4V. For some reason now even when battery was say 89%, I plug into shore power expecting the Multuplus to bulk charge, it just stays at "Float" mode. The purpose for now is to use as backup power when the grid goes down. Apr 21, 2024 · Hello all, Yesterday was the first power on for my new victron setup in my RV which is self-installed over the last 6 months, which included a new Multiplus II (24V/5000VA/120V), MPPT, cerbo, lithium batteries, etc. Jul 16, 2025 · 2 285 27 September 2024 Multiplus II charge cutting out when on RV generator Q&A and troubleshooting diy , rv , parallel , lithium_battery , multiplus-ii , cerbo-gx 2 184 20 November 2024 Multiplus II 120/3000/24 Smart Shunt, CERBO GX Honda EU3000is Pass through and immediate charging DIY beginner , offgrid , multiplus-ii 5 169 13 September 2024 Sep 10, 2025 · Learn how to program and configure your Victron Inverter/Chargers for optimal performance with our comprehensive guide. Troubleshooting Proceed as follows for quick detection of common faults. Once the absorption voltage is reached (set to 28. For unexpected behaviour or suspected product faults, refer to this chapter. xx through 4. This is in dense cloud with less than 200W from the solar panels. Usually I don't need charging from the Multis, because I'm located in a very sunny area. Good luck. Aug 1, 2023 · Why is my multiplus 3000w working but not charging the batteries shore power? I've just installed my multi plus 3000w inverter which will provide AC power while the solar panels have sun. This is strange because the generator voltage is steady at 235 - 240V, frequency is 51. . (roughly Battery -500W, Grid +300W) Changing lots of settings in the colour display (including the Sep 30, 2024 · I have a pair of MP-II 3000/48 charging my LFP batteries from AC-coupled PV, and I’ve noticed the total current never goes above 65 or 66A, while per the datasheet each multi should be able to charge with 35A. e. Now my batteries and multi aren't "activating" when the shore power is on. Smart solar MPTT has the same voltage levels as Multiplus as well. If you change your charger settings to disable (ie: not charging your battery) within the VE Bus System Configurator program you will enter passthrough mode. e as found on some victron documentation at 14,2V here are some screen shots of my settings What I do not understand is that when I charge through the Mppt or the Nov 19, 2024 · The equipment I am using is listed below. The inverter is working. The first time I stopped draining the battery after the inverter Jan 12, 2023 · Multiplus 2 won't charge from Generator My multiplus 2 24/3000/70 wont charge from the generator - if connects, then instantaneously disconnects wiht a low voltage error in the IP protection log. In the Nov 21, 2024 · Not a new system or setting, but today, my scheduled charge event didn’t work correctly. I have the multiplus, a smart shunt, gx cerbo and the bluesolar MPPT all visible in VRM. Mar 13, 2025 · Yesterday customer went to a Campsite to charge batteries, because he was at 20% (12. Everything functions normally, but charging is topping out at about 42A. Aug 17, 2024 · Here’s my system…all software up to date. Don’t know much about the Quattro, but on my Multiplus 2 12/3000/50 2X120, there is a physical switch on the bottom inside right that can be set from on to off to Charge Only. If you have a CCGX you will see it say Passthrough on the Victron icon (tried to attach pic, but issues uploading). Running ESS. Earlier this year I upgraded my boat from simple lead acid battery with a charger to an whole Victron ecosystem with: MPPT multiplus 12/2000/80 Orion 12-12 Smartshunt Cerbo GX lifepo4 battery (non Victron) Everything worked fine I went on holiday with my boat and for some reason I can’t charge my battery just now (had this problem once before but magic solved that by eating out and when I Mar 20, 2021 · A friend has a Victron multiplus not charging at set capacity in his motorhome. May 13, 2022 · Multiplus 2000 not charging I recently purchased the victron multiplus compact 2K. So to increase the charging capacity to try and use all the grid connected PV and export as little as possible, I got . Apr 7, 2025 · Have the Victron Connect app. Apr 25, 2024 · Good evening everyone, I will lay out my system and then ask about my current issue I have a 5th wheel camper that I installed a Victron Multiplus II 2x120 24/3000/70-50, Cerbo GX with touch 70,Lynx shunt and lynx distributer, I am using 2 Redodo 12v 100ah batteries with low temp charge Oct 20, 2023 · Hope everyone is having a nice holiday. I just got a Victron MultiPlus 12|1200|50 and and having a very strange issue with it. My system has been working perfectly although I admit I had not run the generator for an extended time to charge batteries. If you are unsure about performing this procedure, consult your Victron Energy dealer or distributor. The generator is rated for 70 amps Jun 7, 2022 · Hi, In my boat I have the following Victron equipment: Multiplus 12/1200/50-16 SmartSolar MPPT 100/15 BMV-712 monitor Cerbo GX Batteries: 3 x 100amps "oem" Lithium with built in BMS I have activated DVCC on Cerbo GX because I want to limit charge voltage when boat is at dock connected to grid. I have added a Venus GX controller and do plan to add a solar controller (MPPT 150/60) with panels in the next few months. Jul 15, 2025 · Hi folks, my Multiplus II 24/3000/70 is not charging when I try to charge with a generator. A few weeks ago, I opened up the compartment the whole system is in, and something went wrong—I’m not sure what—the Smart Battery Nov 20, 2024 · Hi All, I have a MultiPlus-II 48/5000/70-48 charging a bank of 4 * US5000 Pylontech batteries via 7KVA generator on its AC Input. I am connected to a 30 amp plug have changed that on the Victron cerbo screen. Bus system via the Cerbo (Advanced → Restart VE. 4V, 0. So I went to settings DVCC-maximum charge current. If you're unsure who to contact or if the point of purchase is unknown, refer to the Victron Energy Support webpage. If the problem persists, contact the point of purchase (Victron dealer or distributor) for technical support. 5 Amps. And with the Victron Connect App, I can change it to On Off Charge only Inverter (only?) I never want it not charging, so have not set it to off or inverter. I'm trying to find out if I can utilise the "AC In" on the MultiPlus II to charge my battery during a specific time window each day (at night when So its not a system I installed, but one we had installed. Before it was showing pass through now it is showing Nov 25, 2024 · Hi, I’ve a multiplus ii gx, when via the app I switch to charge only the inverter is still active, off is only setting that turns inverter off, I have to use the switch on the multiplus-ii to off and back on again for it to only be in charge only and then once I turn it to on or inverter the inverter is always on when setting charge only. When charging with low current 7A, the charging is quite standard, but if I increase the current to 12A, for example, the MultiPlus switches from charging mode to inverter mode every 5 - 15 minutes for a few seconds and then back to charging mode. they charge through a multuplus 12/3000 on shore power and typically charges fully in 90 min or less. I understand that it will do this automatically when configured for "Lithium Battery" at a delta of {0. Multiplus charging when hooked to shore power was working fine. When is not enabled, limiting charge current in DVCC also applies to MPPT chargers. I have a PV system connected to AC-In (parallel installation). On 50A shore power Sep 5, 2024 · Hi, Because the Victron community site mentions that I cannot use it anymore, I will report my issue here. Jul 11, 2019 · multiplus 3000 not charging batteries Hi, I've been using the victron multiplus 3000 in conjunction with two BYD B-Plus L 2. I just use a 15a 120v shore power connection but it never goes into bulk mode like the MPPT 100/50, or as it used 6. Shore power is working as you can see the passthrough. Mar 5, 2023 · Multiplus2 ESS not charging the battery from AC-IN Hi, I have a 3 phase ESS system with 3x Multiplus2 3K 48V and 4x Pylontech US3000C no PV installed yet. During the scheduled event, on the colour display inverter block I saw “sched charge” as usual, but the battery was still discharging and the grid was only partially covering the household loads. Multiplus showed Bulk Charging, but it only charges at 0. When PV surplus stops Sep 16, 2024 · We have two Multiplus II 48/ 5000 installed in parallel and are operating fine except for generator charging. What could be wrong? I have been Boondocking a lot, but it has been over a month since I had a generator hooked to the system. Shore power has been reconnected but the Mulitplus won’t charge the batteries despite saying absorption charging. The CCL of the BYD, with this temperature, says to be 140A, so I’d expect the MultiPlus to charge at the max, but it doesn’t. 6V). Feb 6, 2025 · I recently upgraded the firmware (v552) of my MultiPlus-II 12/3000/120-50 120v (2705) and now it will not charge my batteries. The problem is that the Apr 21, 2024 · Hello all, Yesterday was the first power on for my new victron setup in my RV which is self-installed over the last 6 months, which included a new Multiplus II (24V/5000VA/120V), MPPT, cerbo, lithium batteries, etc. Now the batteries are still discharging slightly when on grid with minimal draw from the grid. Jun 11, 2021 · Voltage at battery terminals: 13. 1st issue: The Multi keeps going into absorbtion mode and sitting there for hours with 0 current going into the batteries. (roughly Battery -500W, Grid +300W) Changing lots of settings in the colour display (including the Dec 26, 2021 · I get it to charge with both generators with the new settings — but the MultiPlus shuts down without warning after say 30 sec. Battery SOC is 51%. Apr 29, 2025 · My inverter is only charging the batteries from shore power at 150W. (not an expert on it) On Charging only: Shore Power is trying to switch but clicks back to Inverter side and low batt/overload flashing simultaneously). The only settings changes to the Multiplus were to set the batty type with the switches. Sep 10, 2021 · Hi, just wondering if anyone has seen this before? Just purchased a brand new inverter and it’s not charging the domestic batteries in the evening when it is on shore power. A video of the behavior when I switch from charger/inverter to charger only to force it to start can be seen here: Dec 20, 2021 · Given the error message, if you draw more current than the AC-input limit is set to, you will not get charging. Topic Replies Views Activity Why does my MultiPlus II (48V/5k/70) not charge "full throttle" DIY diy , offgrid , byd 11 271 26 March 2025 Multiplus II charge cutting out when on RV generator Q&A and troubleshooting diy , rv , parallel , lithium_battery , multiplus-ii , cerbo-gx 2 Jul 24, 2024 · iRV2 Forums > RV SYSTEMS AND TECHNOLOGIES FORUMS > RV Systems & Appliances Victron MultiPlus-1 Will Not Switch To Charging Mode On Shore Power or Generator iRV2. Then I adjusted battery settings for 2-300a LiPO4 batteries, then had firmware updates. 2V or so. However, when the generator i… Dec 27, 2024 · Q&A and troubleshooting battery_charging, multiplus, offgrid dirk 27 December 2024 17:03 1 For over 7 years my MultiPlus 24/5000 was working perfect. Battery is a DIY-48V 280Ah with a JK Inverter BMS. Ive tried charger Only mode but wont charge batteries either please help Mar 8, 2025 · 14 668 12 November 2024 MultiPlus II not detecting or charging from 30A, 15A/20A shore, or generator DIY beginner , rv , vrm , multiplus-ii , cerbo-gx , split-phase 24 297 20 August 2025 Victron Multiplus Compact 12/2000/80 not accepting AC input DIY victronconnect , diy , multiplus , rv , campervan 19 394 2 March 2025 Multiplus won't turn on DIY Feb 21, 2023 · Hi, I have a 12/500 Multiplus with 2 105ah lead-acid batteries. Recently the batteries had run low so I started the motorhome generator. Dec 14, 2024 · I recently replaced my boat’s charger/inverter with a Multi. I updated the Multiplus and Cerbo to the newest version. It is connected to the grid and in the future, when the PV is connected, I would like to feed back energy to the grid when PV exces power is available. I believe the settings haven’t changed but I cannot see Dec 31, 2019 · ESS is feeding back to the grid and working fine but is still charging the batteries from the grid when there ain't enough solarpower. Nov 6, 2023 · Multiplus 12/3000/120 not Charging My Multiplus inverts ok, but will not charge from either shore power or from the generator. Jan 3, 2025 · My battery is at 24. A discussion community about Victron Energy (the company, their products, and things that interoperate with their products). When the batteries are discharged, they charge fine. I would be very happy to get a hint on what I am doing wrong here. There are no issues with GFCI breakers Nov 14, 2024 · I have a Multiplus II 12/3000/120-50 2x120V with a ShartShunt 500A/50mV and a pair of solar chargers. (They came dry charged). , it is passing through the AC input to power the loads and charge the battery if there is any surplus current. AC input from a generator. What can I do? Thanks This is the rest voltage if the battery is fully charged. It could be related to the voltage, it already thinks the battery is Feb 17, 2025 · I’m new to the Victron system and currently have connected to shore power however it doesn’t look like the batteries are charging. He has 800ah of lithium at 60% SOC. Additionally I'm able to easily pull 130amps from the batteries and with solar + multiplus able to charge at 80A. The problem I’m facing is that the batteries never charge more than 99% and this behaviour I think it’s affecting the Dynamic ESS since it draws a lot of power from the grid. Jul 18, 2023 · MultiPlus ll not charging from Honda generator? Hi all, just tried to top up my batteries with Honda eu2000i generator and it seems not working at all. Both chargers work, however the issue is that they see slightly different voltages and so don't sync the charge stages properly. 1V which is significantly discharged or under a heavy load. My setup: 5th wheel RV 2 Multiplus II 24/3000/75 in parallel 2 Epoch 240AH batteries Cerbo GX, Lynx Shunt and Distributer It seems that after using Power Assist a number of times, the Inverters just stop charging. Any way to get a response from Victron if a setting change can fix this? Thanks May 23, 2023 · Multiplus II not charging stays in float when battery needs charge Have a Multiplus II and 400AH lithium, Cerbo GX, Lynx smart shunt. Very exciting. The coach also has a factory Onan Marquis Platinum 6500 LP generator (single-phase, 2 x 30A onboard breakers) that’s worked flawlessly for 20 years. Does anyone have an idea to solve this problem? Thanks in advance! Kind regards. I know the multiplus is OK, so what other things should I have checked? Aug 12, 2025 · First post, I am new to Victron and these systems. input current limit and Charge Current (under Charger setting) have been set as 52A using VConnect. As written in the title, with my multiplus 48/5000/70-100 I've never been able to se charging currents above 50A. Thanks for correcting me. I have 3 200AH HE 24V batteries connected through a Lynx ION 400. I know my charger isn't top-shelf its a budget one from OBI but I think I tried everything, and 10or7%-0% SOC is not good every day. I think Dynamic ESS is unable to complete the batter balancing and it goes on and on with the rebalancing Aug 16, 2023 · Hey all, Looking for some advice for using a "BlueSolar Charger MPPT 150/60" and a "MultiPlus Compact 12/1600/70" together in regard to charging. Could this be a battery issue? I have 8 x 6V 200ah batteries connected. I have reinstalled the ESS assistant after the FW update and the MP is in the “on” state, i. Jul 13, 2021 · Hi all, I've just set up my Victron Multiplus II GX 48/3000/35-32. The issue we’re running into is that even though the Cerbo shows a charge voltage setting of 14. Alternator does not charge, but it was just a week ago. 8V in my case), it should transition to the absorption phase (constant voltage Sep 5, 2024 · Hi, Because the Victron community site mentions that I cannot use it anymore, I will report my issue here. Jun 26, 2022 · Victron BMV-700. Feb 9, 2025 · Multiplus ii not charging after failed firmware update via VRM DIY beginner , vrm , multiplus_2_gx , victron_community 6 489 11 September 2024 Config advice on multiplus + battery + shunt DIY beginner , multiplus , telecom , cerbo-gx 6 185 8 March 2025 Customer's system not charging without a change DIY rv , vrm , campervan , bms , cerbo-gx 9 Charge limit not working Hi, I have 2 SmartSolar MPPT VE. I’ve contacted Midland Chandler but wondered if anyone Jan 13, 2025 · I have a two similar off grid systems using the same opZs 3000 with a smart shunt to control the battery level. Victron MultiPlus-II 12/3000/120-50 2x120V Victron Digital Multi Control 200/200A Victron SmartShunt 500A/50mV Victron Blue SmartSolar MPPT 150/85-Tr Victron Cerbo GX & Touch 50 monitor 5 - BattleBorn GC2 batteries (500 amps) 8 - ZS 170w solar panels (1,360 watts) Have the system in an RV for a few years and everything has worked pretty well May 10, 2025 · The charging on the Multiplus does not work off the SOC, it only works off voltage. They are all setup identically, i. 0 and my battery Dec 22, 2024 · So the issue with the charge is likely the stability of source. The generator has been wired through a two position switch to run to the ac input of only one of the Multiplus’ in either switch position ( say unit A or B ). Still a lot to learn for configuring the setup. The second generator is much more stable, it runs at 250v 52hz without load and goes down to about 242/50hz when the load is on and doesn’t jump much at all. Special charge curve for traction batteries - For optimum charging, special traction batteries require a fixed charging current phase in addition to a voltage curve. 2V, 0. Also when grid is connected it just charges the battery no matter what I do. LiFePo4 batteries and a BMV-712-Smart monitor. my system: Multiplus 2 5000/48/70 2x Pylontech US3000 Cerbo GX Generator: EP3300 (Europower with 2700Watt continius power, no AVR) First time i connected the generator, it took a while, but then Aug 1, 2025 · it seems intermittent, but recently multiplus doesn’t switch to charge mode when generator switched on - has happened twice now. 4V so using Victron's logic, I would not go to bulk charging until the battery voltage goes to 12. Beware that this often results in a higher charging voltage that can be damaging to regular on-board consumers! 7. This a bug or fault, is anyone else this issue Cheers Feb 24, 2025 · Hello, I have a Multiplus II GX with Venus OS 3. We checked the monitor last night and it was 90% and is 86% This procedure should only be performed by Victron Energy dealers, distributors, electric technicians or professional users. I checked each battery separately and they all read 13. But even connected to shore power, the batteries won't accept the shore power. :) In my system I noticed that MPPT first charges the battery and once the battery is full, energy from MPPT is converted to AC by MultiPlus, but only when "DC-coupled PV - feed in excess" is enabled. Temperatures are currently Occasionally, for various reasons, I find it preferable to force a Multiplus from Float back into Bulk. The monitor shows about 14. 2 and a charge current setting of 90 the Multiplus is only charging at 9 to 10amps. Oct 21, 2024 · On my first setup with one Multiplus-II 48/5000/70-50 everything runs fine. Bus The MultiPlus provides pass through power but will not charge. 52, additionaly 2 MPPT trackers 150/35. Start by checking the common issues described here. so far so good. Over last summer I updated it from (if I remember right ) 3. I had excess PV due to the limitations of the multiplus 2 charging at its max. 3 volts when fully charged and the monitor shows 100%. Oct 23, 2024 · HELP: I have a travel trailer with two MultiPlus 3000 in split phase. Oct 20, 2023 · I have a Victron system configured with two MultiPlus-II 48/3000/35-50 inverters in a split-phase setup. I selected 50A but the Multiplus is still charging with maximum power. Normally, the charger should follow this sequence: Start in the bulk phase (constant current, voltage increasing). Jul 15, 2025 · Hi folks, my Multiplus II 24/3000/70 is not charging when I try to charge with a generator. In the console it registers the AC input as 219-220V and ~54Hz. Not reading Amps Hoohaa Electrical: Batteries, Generators & Solar 15 19-08-2020 15:00 Victron MultiPlus Compact 12/2000/80 charging issue HighTemp Electrical: Batteries, Generators & Solar 1 28-07-2018 00:40 Jan 27, 2025 · When this happened I opened Victron Connect and selected the Multiplus and immediately the Inverter stopped working, and has not worked again since even though I have repeated the exact steps several times. May 4, 2025 · My 2x160ah service AGMs suffered a deep discharge today over 3 hours after shore power was turned off and I stupidly left the inverter on. Charging works, taking the battery charge voltage up to about 57V which is expected. com Google Feb 23, 2025 · This time after switching from ESS (in the city) to offgrid, the MultiPlus II only charges with around 40A. In my 4s2p system the batteries are staying well balanced between each other and my Multiplus 12/3000 charges them just fine. Charger settings posted below. However, I have noticed that while the system can run at 66V, it does not charge beyond 64V, which is quite disappointing. The multiplus ii indicates absorption or float, bit the charge current is 0. Victron MultiPlus 12/2000 Not Charging Hello All. With all the loadshedding, the batteries are not returning to 100% SOC. 5Hz and the scope shows no strange shape to the sinewave. I've sent the max charge on the multi at 70A with a mk3 programmer. My setup: 5th wheel RV 2 Multiplus II 24/3000/75 in parallel 2 Epoch 240AH batteries Cerbo GX, Lynx Shunt and Distributer It seems that after using Power Assist a number of times, the Inverters stop charging. Sep 9, 2023 · I have a Victron MultiPlus II 48/5000/70/50 with 2 parallel LifePo 48V 50Ah batteries in my boat. Dec 22, 2024 · I am using a MultiPlus-II 48/5000/70-50 in ESS mode. One of the systems is working fine. It's set to charge a 120 amps and is charging at 70. I have it connected to a 12v 100Ah LiFePO4 battery. I have tried to use Limit charge current setting of DVCC to configure the maximum charge current as 0A when I do not want system pulling from Grid or Gen to charge Jun 26, 2022 · Cruisers & Sailing Forums > Engineering & Systems > Electrical: Batteries, Generators & Solar Victron Multiplus not giving full charging amps « Starter circuit breaker keeps tripping | Wiring up the 24V Muir electric winch » What does code L1 mean as the reason for not allowing Solar to charge? works fine on shore power. Jun 15, 2020 · My float is 13. I drained my lithium battery down as per instructions to calibrate the battery monitor. Our recommendation is to use the Victron Toolkit app to find the description of all possible LED alarm codes. And victron is in bulk charge mode. May 10, 2025 · The charging on the Multiplus does not work off the SOC, it only works off voltage. The system was working fine. This is not a limitation imposed by the pylontech batteries whose Charge Current Limit is always at 222A until the SOC gets Forced absorption Under certain circumstances, it can be desirable to charge the battery for a fixed time at the absorption voltage level. 4 V. Dec 29, 2022 · Hi, i have a SOK48V100 battery connected to a Victron MultiplusII 48/3000 with the battery terminals, and connected to a Victron Cerbo via CAN. The MP2 turns on and I can access the settings. Both have the same firmware and with disabled charger it runs fine, too. With SOC around 60% the charge current into the battery bank is about 48A - well below the 70A rating on the Multi. However, since I have solar, I'm rarely using the charging feature of the Multiplus. It seems like after a failed upgrade of the firmware of multiplus, the issue has started. I said I was new. The MultiplusII has ESS active. I want it to charge the batteries only in the night from the grid by scheduled charging and by daytime only with the mppt and not from the grid. There are no loads taking significant current, and the output wattage reported by Aug 14, 2022 · If you don't have it, than there is noting to feed. Ive also tried to restart the VE. Without doing anything the system then Nov 10, 2020 · Lithium batteries not charging from shore power I have 2 x 200ah lithium batteries from victron. The MultiPlus is sensitive to this and will reject power that is outside of it's programmed settings causing the unit to not connect, synchronise or charge. Consult your Victron Energy dealer if the fault cannot be resolved. I wanted to ask Charging a Starter Battery With A Multiplus We have a Victron Multiplus 12 800 35 in our campervan. Bus system) which had no apparent affect. I performed the first charge of the batteries according to the battery manufacturer. The same transformer is used for both charging and inverting. It should be so fast the machine can not recognize the power dip. Stuck at 50A charging current with a multiplus 48/5000/70-100 Hi. Our setup includes: 4x 210Watt solar panels multiplus 12/3000smartsolar Mppt 100/50Cerbo GX 500A Smartshunt Smartdongle MK3-USB GX50 4x 100Ah LiFePo4 batteries So as I understand how it was installed, the Lithium batteries are supposed to be charged by the solar panels, and then they in turn charge the battery that came with my trailer Sep 3, 2025 · I have an issue. It would maintain the 50w on the grid and try to put all of the grid connected PV towards battery charging. As you can see from the VRM widget, the AC fluctuates for demand but never charges while DC usage will drain the battery over night and only charges when the solar panels are active. DC loads must be disconnected from the batteries and the AC loads must be disconnected from the inverter before the inverter and/or battery charger is tested. Mar 28, 2025 · What to do when a MultiPlus, or Quattro, does not accept generator power Power supply from a generator is typically more variable than a power supply from shore or the main grid. If an error cannot be resolved, please refer to your Victron Energy supplier. In Forced Absorption mode, the MultiPlus-II will charge at the normal absorption voltage level during the set maximum absorption time. Are there any issues to consider when adding a multiplus in parallel with the Dec 9, 2024 · I have been charging my 2 lithiun batteries in // more often from solar panels (mppt smartsolar 100/50), and while driving with an Orion Smart 12/12/30, and occasionaly from a Multiplus 12/800/35. Attached are via DC: 2 x SmartSolar Charger MPPT via AC-OUT: AC PV Inverter two 48V batteries A raspberry Pi running VenusOS large Is there any way to charge the battery using DC only? I have tried the following using Node-Red: -1- Set “ESS max charge power (W)” to zero. If Multi power switch is Oct 19, 2024 · A Victron expert told me to merely change the AC input Control, via the menu in Victron Connect, after I connected to the Multiplus via the MK3-USB interface. We’re also seeing the bulk and absorption lights flashing together. in the first place, when plugging the IN cable into Honda, there will be no immediate reaction from MultiPlus, about 10 sec with nothing. We would like to use the trickle charging function to trickle charge our van's starter battery from the Multiplus (which in turn is connected to a 200ah Victron Lithium but the multiplus may also run off AC). Maybe something has changed on the generator side. Installations, thoughts and ideas, projects, tasks, questions, problems, (and hopefully answers!) and of course, wild speculation. Others here will be of more help. A video of the behavior when I switch from charger/inverter to charger only to force it to start can be seen here: That is what the Cerbo GX is showing, while the generator is running: Here is my config: Here you Feb 6, 2025 · I recently upgraded the firmware (v552) of my MultiPlus-II 12/3000/120-50 120v (2705) and now it will not charge my batteries. When external power is removed, Multi automatically switches to Invert mode. Dec 8, 2024 · We have a generator charging our 4 x Victron 12V/165Ah GEL Deep Cycle Batteries through our Multiplus II. aoir rgciux lwoqy tzivfa ovtp aebvcj qyovbb kzrtuu whus jsokoa ror rslzta nbias dpq gpxq