Hey folks,
I've posted here a few times regards brief (<1s) voltage spikes I'm seeing during absorption of my internal BMS LFP battery.
In summary lowering the absorption from 14.4 to 14.06 (nominal 12.8v battery) helps a ton. The absorption cycle holds the voltage steady as a rock, but when large loads are placed on the battery such as fridge cycling, water pumps and macerator use it can style cause a spike after the load is removed.
At first I was very worried about cell balance issues, but I recently learned of flyback transients and was wondering if
1. These could be the cause as they only seem to come around when absorption current is very low ( <1amp) and after the fridge or pumps have cycled?
2. Is there anything I can do to prevent this?
3. Still a cell balance issue?
Thanks all
