writes in one Comment
on the Cerbo GX and Touch 50 you can see - Voltage, current, state of charge and state of health, battery temperature - desired charging voltage and charging current and max discharging current the last three values are interpreted as DVCC values which the Cerbo gives to a connected VE.Bus charger like the Multi series. Furthermore you can see every alarm message.
Im allready using a EMUS G1, but sadly an old an incompatible (to Victron.img Firmware) Hardware Version from 2018.
So i cannot test the CAN Bus Connection to Victron by myself without buying a new G1 Unit.
For my growing second Life Battery Packs i need/want to log and see the
Could someone please send some screenshot from the actual sent data between EMUS G1 and Victron. ideally also the visualisation in VRM.
(Im asking about that cause im kind of thinking about switching to RECBMS cause in this article and also in their Manuals i can see that all neded Data is sent via CAN https://www.offgridsoftwaresolutions.com/ws500-user-forum/topic/connecting-my-rec-bms-to-a-victron-cerbo/#postid-529)
but that would mean kind of an rebuild of my batterie packs an in genernal im really happy with the EMUS
I contacted the EMUS Support several time, they are fast and helping, but cannot support me in my question, just telling me "CANBUS between EMUS and Victron is supported"
So its a question of REAL-LIFE-EXPERIENCE and sadly not readable in manuals
how did those people experiences turned out who asked those question in past.
thanks in advance
Hi Victron community, I have one question regarding a couple Victron / DIY LFP pack with Seplos BMS.
If it is just to say that Seplos is not in Victron's compatibility list for BMS, you can save your time and are not forced to participate to this thread ;)
I use this BMS (I have 4 of them) and it is working fine, but, as there is a "but", a big one, I discovered that using only 1 battery pack (14kWh / 200A BMS) with a 5kVA Multiplus 2 doen't allow it to start as the transient current is too high for the BMS (fixed values in the BMS are 250A for 30mS, not changeable if you don't want to damage your hardware and loose the warranty).
Is there a known solution to limit the starting current on the Victron side?
Else anyone intending using those BMS in a Victron environement must pay attention to this "detail" and better find another model if they don't intend to have 2 or more battery pack.
I have 20kWh Lion batteries on a Multiplus II 5kva 48v Every night at the start of cheap rate the batteries start charging they jump from 35% SOC to 55% SOC after 2 mins of charge. Then the moment charging stops they drop from 100% to 80% immediately. This system has been in for only 1 month, but it just seems very odd. Is this normal or to be expected? any ideas on what is going on? Much appreciated.
Can Someone please explain how the 4 small connectors on the front work?
I've never seen connections like these...
I could experiment but I don't want to break anything.
The unit comes with 4 small crimps but they don't stay in the holes, they just fall out... please help
Thanks in advance!
Good day all.
I would like to know if anyone has the BMS software for Enersol LiFeP04 48 | 100 batteries?
Battery not Charging correctly excess Solar Being Exported. Assume that because Inverter is seing SOC at 95% - thus Inverter does not want to Charge battery at a higher Rate. Please advise - Urgent.
I am an employee at a Victron distributor. I asked a question to our contact at Victron and he suggested that I publish his answer here.
Question: So as I understand it for connecting the Smart BMS 12/200 charge disconnect to the original Multiplus 3000 you can't just use a regular wire, you have to use the inverting cable that Victron supplies? (PN ASS030550120) I'm trying to undertand why this is and what is the function of this "inverting" cable versus a regular old pair of tinned copper wires? Also, when connecting the Smart Battery Protect load disconnect terminal to the BMS 12/200 can you use just a regular wire for that, or must you use a similar special wire? The manual for both devices do not specify a wire gauge, so I assume I just size it based on the 1 amp fuse and the wire length?
Good community question!
Source current limit is 10mma – miniscule, 1A inline fuse – is fine to protect the 18guage to around 10’.
Yes, you can also purchase the non inverting for or invertering cables in E-Order for the connections to MPPT and/or Multi.
Question: Is it required to use the inverting cable or are two regular wires going to work as well? For the Multi to BMS 12/200 charge disconnect.
Please see this link, scroll down to
7.1 Appendix A
Schematic shows the connection.
For ATC (allow to charge) circumstances AND ATD (allow to discharge) circumstances, each has a cable going into the Mutliplus terminal (ATC and ATD).
Order both the
Non-inverting remote on-off cable
Inverting remote on-off cable.
Please see the schematic in manual 7. Appendix.
I saw in this post (https://community.victronenergy.com/questions/13574/list-of-compatible-bms-vebus-or-canbus.html?childToView=152821#answer-152821) that it is possible to connect an Emus BMS G1 on a Victron Cerbo GX system. I am in this case.I would like to know what the procedure is.
I have performed the following tasks :
- updated my firmware with version 2.9.2 file: EmusBMS_m1284p_v2.9.2_Victron.img
- connected the G1 BMS Control Unit to the BMS-can output of my Victron Cerbo GX via the CAN and - CAN + and GND outputs
Is there anything else to do so that the EMUS G1 is seen by the system Victron Cerbo GX system ? Because I do not see it ... Maybe it's my cable? Do you have a plan of the cable that needs to be made ?
Thanks for your help
Currently I am busy with setting up an Victron ESS system based on a multiplus II and Cerbo CX module. I want to add to this system a third party battery set. Does anyone has experience with the Litech power LiFePo4 48V 100Ah Powerwall Energy Storage system (LPPW48V100AH16S1PF001) (www.litechpower.com) ??
see also the following link: LiTech Power LiFePo4 48V PowerWall Energy Storage System - LiTech Power Co.,Ltd
I was wondering if someone has experience with these battery's or maybe already is using these? Particularly if the communication between the Litech BMS with the victron system is functioning fine.
I want to connect three of these 48V/100Ah in parallel.
Many thanks in advance for replying,
After a low voltage warning and lithium 160ah battery needing a rebalance.
Re fitted battery but bms is in off mode and don't know how to restart it.
So obviously still no.power to.anything.
I'm working on a customers narrowboat in the UK which has had a Victron lithium system fitted by another installer a few months ago. I've attached the orginal installers diagram which is how it's all been installed.
I've been asked to sort out alternator charging - Removing the CL 12/100 (which doesn't work and installer saying the latest version isn't like previous ones they used) and fitting a Mastervolt Alpha Pro external regulator to the Beta 43 175A alternator (using BMS charge disconnect signal to control).
I'm questioning how the state of charge relay is being used to break the Charge Disconnect signal from the VE.Bus BMS. As soon as the BMV hits 100% the allow to charge signal is broken and turns solar and alternator charging off so there's no real length of time in absorption. The cells in the 3* 160AH Smarth Lithium batteries are balanced according to the app.
Is it recommended that the BMV relay be used like this? Can't see it on any of the official schematics.. edit.. just spotted this one here https://www.victronenergy.com/upload/documents/DS-Lucians-Victron-Van-Automotive-Alternator.pdf
Wonder what other people think and if there's an official recommendation?
1. I could leave BMV relay as it is controlling the Mastervolt Alpha Pro and SmartSolar.
2. BMV relay just controlling Alpha Pro. Smartsolar left with standard lithium profile with fixed absorption time to ensure cell balancing.
3. Remove the BMV relay control completely.
Thanks for any advice, Ed
Just plugged my new Smart BMS CL 12-100 with a 80A fuse however the device is only giving an output to the LiFePo4 battery bank of 4-6A maximum when running the engine. The state of charge of the battery is 80% and it is at 13.3v -120Ah (it’s a 600Ah battery bank).
When I plug the solar (MPPT) it is giving way more than that amount of Amps so clearly the system wants to take charge.
Entire system is Victron except solar panels
Charger Safety relay and the Charge Enable relay this means that the charge current limit (CCL) might be hitting 0A causing the relay to latch OFF. but what should I do to resolve the issue it's charging for just 5 mint and turning off and I restart the BMS and 5 mint again ...
I am setting up an off-grid system with several 48V 100A Li+ batteries. The batteries are communicating to the GX box via a bridge box (protocol conversion). I can get all information and alarm showing correctly on the GX Box screen (via HDMI). However, the GX BOx is not communicating with the inverter as the charge current is alway fixed. For battery run at low temperature, the battery only accept the charging current up to 0.15C and it would increase to 0.5C when the temperature reach a certain value. However, the inverter is constantly provided a fixed 0.5C current (set visa the VE CAN logger). Is there a way I can achieve adaptive current charging based on the reported charging rating?
Hi there - in my system I am using a Lynx Distributor with the Smart BMS 12/200. Would I connect the Lynx Distributor the same way I would connect the batteries in the diagram shown? Or do I need to connect the Smart BMS directly to my Victron Energy LiFePO4 Battery 12,8V/330Ah Smart?
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