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markbuilt asked

Recommended settings for BMV712 Smart for LFP / Lithium?

What are recommended BMV 712 settings for my 2x 200Ah LiFePo batteries? I’m not clear on Charged Voltage, Tail Current, etc. Thank you!

BMV Battery Monitorinstallation
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1 Answer
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boekel answered ·

Charged voltage: this is the voltage that has to be reached to sync to 100% charged (along with tail current and a time setting)

Charged voltage: absorption voltage (or a little below)

Tail current: the recommended current the battery manufacturere advices to stop charging, a bit above that. As this is a percentage, you'll have to calculate from the battery capacity (you say 2x 200Ah, if they're in parallel (12v) it's 400AH, tail current of 4A = 1%


The best settings might require some experimenting, depending on the system (you didn't mention how they will be used). especially systems with solar can sync too early in low-sun conditions.

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