LIFePO4 batteries - interesting challenges
In another thread I detailed what I was doing to upgrade batteries to LIFePO4. Thought I'd raise a new thread for some challenges I'm facing in case someone searches on it in the future. I have 4 1...
Forum Discussion
Mex here are readings from Sept 21st of last year. LFP voltage so flat.
When the batteries are full as phemans is seeing/ learning the SoC drop compared to voltage is so little you can only see it if you have a meter with xx.xx v.
Here is a typical day that has been going on for the past 3.5 years everyday on my bank and mainly being charged by solar (99% of the time). SoC, Voltage, discharge/ charge amps are read of the EMS display for the LifePo4 batterys (500ah). The next columns are from the Magnum inverter display.
As you see until there is a heavy draw item then you see some temporary voltage drop but even still this is at 37% SoC (185ah) or 63% DoD.
I could show higher SoC readings but the voltage move is very minimal.
When the batteries are full as phemans is seeing/ learning the SoC drop compared to voltage is so little you can only see it if you have a meter with xx.xx v.
Here is a typical day that has been going on for the past 3.5 years everyday on my bank and mainly being charged by solar (99% of the time). SoC, Voltage, discharge/ charge amps are read of the EMS display for the LifePo4 batterys (500ah). The next columns are from the Magnum inverter display.
As you see until there is a heavy draw item then you see some temporary voltage drop but even still this is at 37% SoC (185ah) or 63% DoD.
I could show higher SoC readings but the voltage move is very minimal.
