



OK 12v solar system charge multiple batteries simultaneously?
Yes, It is ok connect multiple batteries in series and parallel .Keep the combined battery voltage will always at 12v. Either connect two 6v batteries in series or parallel multiple 12v batteries.
When the controller stop charging the battery ?
12v battery ,the controller will stop charging when indicating that the battery is fully charged .When the battery drops to a maintainable level ,the controller will resume charging.
Why test voltage over 20V ?
The 20v is the open-circle voltage of the solar panel ,not the charging voltage .Test voltage ensure that the solar panel system remains connected to the battery .
Overcharge protect my batteries?
The built in controller includes overcharge protection .

OYMSAE- Solar Battery Charger
It is a device that uses solar panels maintain the charge of a battery. Keep car, boat, or RV battery charged when it is not in use.
OYMSAE- Solar Battery Charger
It is a device that uses solar panels maintain the charge of a battery. Keep car, boat, or RV battery charged when it is not in use.




OK 12v solar system charge multiple batteries simultaneously?
Yes, It is ok connect multiple batteries in series and parallel .Keep the combined battery voltage will always at 12v. Either connect two 6v batteries in series or parallel multiple 12v batteries.
When the controller stop charging the battery ?
12v battery ,the controller will stop charging when indicating that the battery is fully charged .When the battery drops to a maintainable level ,the controller will resume charging.
Why test voltage over 20V ?
The 20v is the open-circle voltage of the solar panel ,not the charging voltage .Test voltage ensure that the solar panel system remains connected to the battery .
Overcharge protect my batteries?
The built in controller includes overcharge protection .




















































