I have two 400W solar panels in parallel and 3 x 24V 25Ah Lifepo4 (parallel) on a 120/20 charge controller. Settings are Victron standard for Lifepo4.
As soon as the absorption phase starts, I observe Voltage peaks up to 34V.
I think the controller is working against the Lifepo4 BMS cut of at 30V.
Lifepo4 manufacturer suggest absorption voltage beween 28.8 to 29.2 Volts. I fear if I lower the absorption voltage further than the standard setting of 28.4V the internal BMS will never balance the battery.
What can I do?
Thanks for your help
