Converting from FLA to Lithium batteries

DIY
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1

Hi I’d like to use a 200AH 12V Lithium battery LIFEPO4 to run my multiplus 12-3000-120-50 (the firmware version starts with a 26). Unfortunately the instruction manual says very little about lithium batteries. I use an epever MPPT which shows clear instructions on how to program for lithium. I have a MK3 VE bus to connect to the inverter. Could anyone point me to the S.O.P (standard operating procedure) to configure for this type of battery? PS I never use the inverter for charging the batteries but don’t mind configuring for charge and inverter functionality. Tx.

2
  1. 200Ah is a small battery for the peak power of your inverter which will demand over 250A. Check your battery is capable of supplying your needs and increase if required.
  2. The Multiplus is programmed with VictronConnect on your phone or VE Configure on PC. VE configure manual has a lot of detail on the Multiplus Settings. Be very careful changing settings. Link to index and charger section of VE Configure manual.

www.victronenergy.com/media/pg/VEConfigure_Manual/en/charger-settings.html

https://www.victronenergy.com/media/pg/VEConfigure_Manual/en/index-en.html

3

Thanks. Yes you are right on the peak power however we cook and heat with gas and wood and heat water using solar water panels. To be sure I have a 100A fuse between battery and inverter. Thanks again.

4

Hi Mr Farnell. I got this message from EASun saying their battery is compatible with the Multiplus 12/3000 series. Can you confirm you agree with it?. Thanks.

easun
easun708×463 22 KB

5

Just to elaborate on my previous post and assuming you are working for Victron (that may of course not be correct!) I wanted to know whether Victron had actually done any lab testing with these batteries as this is probably the only way to ensure they are fully compatible.

6

I am not a Victron employee, this is a community staffed by Victron users.

I can point you towards Victron’s tested batteries that are compatible, many others work but without complete integration.

https://www.victronenergy.com/live/battery_compatibility:start

7

Thanks a lot for your answer. I got confirmation from EASun that they had tested their batteries in the lab on a Multiplus and everything was fine.