question

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mva asked

SmartShunt setup for LiFePO4

For the Victron SmartShunt with a LiFePO4 battery, the Victron Manual recommends the default parameters with the exception of tail current, Peukert exponent, charge efficiency, and discharge floor. For the last three parameters, Victron recommends Peukert exponent (1.05), charge efficiency (99%), and discharge floor (10%-20%).


Questions:

- I am using a BattleBorn 100A-hr battery. Does anyone know what the recommended tail current parameter is? With COVID, BB is not answering phones....

- Are the other three parameters reasonable in your experience?

SmartShunt
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snoobler answered ·

Most LFP batteries are fully charged at 3.55-3.65V/cell and 0.05C.


Your other parameters are fine.



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left-coast-geek avatar image left-coast-geek commented ·
I just upgraded my camper, which already had a smartshunt, to 2 x SOK 12V 206AH LFPs (and a PD4655Li replacing the WFCO 8955). these two batteries combined are 412AH, so the 'tail current' of this is 0.05 times 412 == 20.6 amps ?!?
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snoobler avatar image snoobler left-coast-geek commented ·
Yes.
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