What Voltage Is A Flat Battery. A guide for 12v Car Commercial Leisure and Marine batteries. With the battery in front of you you have to put the red probe to batterys end and the black probe to the batterys flat side - end.
Its a good place to start though. A fully charged car battery voltage should be 126v or above this is with the engine off. Laptop battery and adapter voltage ratings.
A flat discharge curve may simplify certain application designs since the battery voltage remains fairly constant throughout the discharge cycle.
Rest of the in-depth answer is here. This one recently stopped working I found out that was because the voltage of the battery had dropped to 272V which is too low for the constant current driver. Many modern smart chargers are designed to charge batteries until they are full and then relax the charge to the float voltage until. A 12 Volt battery contains 6 x 2 volt cells but 12v is the nominal voltage.
