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micmad avatar image
micmad asked

Victron & Polytech --> Sonnen 2500 LFP2 possible to use without Sonnen System components?

I rescued some Sonnen 2500 LFP2 from disposal.


now i want to use them in my Victron 48V System

but the battery need's spezial comunication to

get and stay alive - Manufacturer is Polytech and ther

Battery's are suportet by Victron - with minor modification

of comunication Sonnen 2500 LFP2 schould work as

well.

can anybody help?



48v battery
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matt1309 avatar image matt1309 commented ·
Could you just use a smart shunt rather than having BMS communication, they're pricey but i think otherwise you'll need to write custom driver to get BMS communication to work unless someone else already has.
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2 Answers
trpkosj avatar image
trpkosj answered ·

Hello,


have you found any solution? I have 3 pieces of LFP2 and want to use them with Victron...


Thanks,

Jirka

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micmad avatar image
micmad answered ·

Yes - I found that you can use

BatteryView_us2000b_series_3-0-26 to reset communication timeout

so Battery stays alive - with internal protection


To get lifedata from the Battery --> Wifi and MQTT

https://www.rustimation.eu/index.php/solar-pylontech-akku-ueber-konsole-aufwecken/

no wakeup so far with LFP2500 but rest works so far


best regards

MIC





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