Can You Charge A 6 Volt Battery With 12 Volts. It should read 6 volts if the battery is in good condition and is at least 20 percent charged. To connect a 12 volt battery to that circuit you would need to run the positive post of the 12v battery to the positive side of the battery run on the in series batteries.
However some recreational vehicles motorcycles mobility devices and other applications use a smaller 6 volt battery system instead. If not even if its 125 its a goner or its going. Charging a 12-volt battery using a 6-volt setting is easily possible but it takes twice the time.
But if you use a trickle charge leave your battery to charge for about 6 to 12 hours and then turn off the charger.
With it you can safely jump start a dead battery in seconds - up to 20 times on a single charge. You can charge a 6-volt battery with a 12-volt charger but it is not recommended. Though not fully charged a car battery is considered charged at 124 volts or higher. Each 6 volt battery pair operates as a single 12 volt battery.
