How Many Watts Does A Car Battery Hold. Most car batteries are 12v (not really exact, and also depending on remaining charge and current draw) but there are many systems out there so there's not really a general answer. If you discharge it by more than 50%, you will shorten its life.
Additionally, how much does a 10kw battery cost? Input these numbers into their respective fields of the battery amp hour calculator. If your average car battery can hold 5 amps for 10 hours, it’s a 50 amps battery.
The wattage's given below are estimates. Plus even if we choose to say 12v is a safe bet for voltage, the general capacity, max current, reserve capacity, cca, ability of battery to perform in cold. A car battery can have 7200 watts per hour. If your average car battery can hold 5 amps for 10 hours, it's a 50 amps battery.
