Greetings.
New to all this, but trying to run a small load (dc fridge & lights) in little travel trailer.
280Ah LiFePo4 & BMV712. I have 2 Victron solar chargers, but they are currently disconnected while I figure this out. BMV is running most recent firmware (4.08)
Charging is fine (Aims 75amp). If I discharge quickly (200W/hr) everything seems normal, SOC decreases steadily until I stop it at around 10% SOC. However, if I let it run with a small load (just the fridge ~ 35Ah/Day) it runs for 3-4 days, gradually decreasing SOC & increasing "Ah used" and then these figures just clear themselves - no values shown.
Pics included;
- home screen with voltage but no SOC/Ah Used
- "trends" showing the last week with a quick discharge, recharge and then 3 days slow usage until it just ends
- battery settings.
For what it's worth, BMS voltage matches the BMV's pretty consistently.
Any thoughts would be appreciated!