What Voltage Should You Charge A Car Battery. But first a few important notes and caveats. Experienced RVers try to use no more than 20 to 50 of the energy available in a.
The chart is listed below. If you dont have this tool try to start the engine and turn on the headlights. A good healthy car battery should have no fewer than 126 volts.
Check Battery Voltage and State of Charge It is important that you first check the battery plus the charging system output alternator.
A fully charged car battery voltage should be 126v or above this is with the engine off. But this rule is applicable when the engine is turned off. Each battery has six cells each with 21 volts at full charge. If the headlights are bright enough you are equipped with a battery at decent capacity.
