sunworshipper
New Member
- Joined
- Nov 13, 2019
- Messages
- 33
Most of us on this forum know that the battery voltage (esp. when discharging or charging) is not a reliable of the SoC of a battery bank and recommend the use Coulomb counting of battery monitors for this purpose. However, we seem to blindly accept chargers that determine if the batteries are fully charged based on the voltage. When a solar charger terminates charging, the chemical reaction is nearly reversed, but not fully reversed. Compounding the problem for lead acid batteries is the variation on recommendations from battery manufacturers - charge until the current drops below X% (1<X<5) of the nameplate capacity or stay in absorb for X hrs (2hr<X<8hrs), etc. Why don't we have chargers that terminate charging based on the net charge delivered? I realize that such a charger needs to know the net charge from a monitor.