jharrell
Solar Enthusiast
- Joined
- Aug 11, 2021
- Messages
- 298
I understand that, but you'd need to set the voltage and current output. That way, it will stop charging once the defined potential us reached. If the voltage us variable and current fixed, it doesn't have a way of stopping barring BMS.
Charger or power supply is set to absorb voltage say 58.4v and battery is at 51.2v, so lots of current will flow more then the charger can provide, so charger goes into CC mode LIMITING current, once voltage of battery rises closer to set absorb voltage batteries will only accept current at LESS than max charger current setting and now it is in CV mode where by voltage is held and current slowly goes down as battery rises, the only way current could be held is to continue to raise voltage beyond your absorb setpoint since its not current goes down I = V / R.
Voltage is pressure, current is flow.