question

Russell Thomson avatar image
Russell Thomson asked

Help with designing a system to go with my LifePo4 batteries

Hi Guys,


I'm new here so be gentle..


I currently have a 5kw PV system with a Solar charge controller/Inverter. Using what we can but the rest goes back to the grid.


I would like to add some LifePo4 batteries that I have and need some help to integrate them.


My list so far is...


Multiplus 24/300/70

BMS123 Smart

BMV-712

Colour Control

Bluetooth Dongle


The bit im struggling with is connecting the BMS to the Victron gear? Do I need to use Battery Protect's for disconnects?


Any help would be greatly appreciated.


Russ


Multiplus-II
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2 Answers
nebulight avatar image
nebulight answered ·

If you have no DC loads and just AC, then you can use the two wire assistant with the multiplus.

https://www.victronenergy.com/upload/documents/Manual-Connecting-other-lithium-battery-systems-to-Multis-and-Quattros-EN.pdf

However you'd probably want to setup an ESS and I'm not sure how the ESS will work with the two wire. Maybe someone else can chime in.

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Rob Fijn avatar image
Rob Fijn answered ·

Hello, you need the Lithium assistant function in the multi

Best regards,

Rob

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Russell Thomson avatar image Russell Thomson commented ·

Excuse my ignorance..

Is this something I download and upload to the Multi?


If so where would I find it?


Cheers

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Rob Fijn avatar image Rob Fijn Russell Thomson commented ·

Hello Russell,

Yes, you would need this assistant.

See this picture.

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1571226264087.png (33.8 KiB)