Hi,
I recently upgraded lead acid battery pack in my parents home to LFO. However I noticed that for example if the battery discharge 4 (2.5kwh today +1.5 yesterday) kwh then during the day it took 5.85kwh to charge back to full.
Is this normal? I do understand chargers and batteries generate...
I have a 7000 watt mppt inverter. I want to find the optimal size of the string.
Does mppt like more voltage or current from pv panels?
What is better 300V 20amps or 450V 15.5 amps. Or this is completely irrelevant and inverter will work hard no matter what? I've noticed the inverter fan...
As with each charge/discharge cycle the usable capacity of the battery drops, how does it reflect on bms settings in terms of capacity and voltage?
I've 400Ah pack @48v, how does the bms know the capacity has dropped to say, 380Ah. I use daly BMS.