Top best answers to the question «How many watts does a 12 volt battery have»
How many Watt-Hours in a battery?: Watts are pretty simple - it is just battery voltage times amp-hours. A 12 volt 105 AH battery can supply (under perfect conditions and to 100% discharge) 12 x 105, or 1260 Watt-hours (1.26 kWh).
A 12 volt 1ah (amp hour) battery is rated to put out 12 watts for 1 hour before it is fully discharged. Or it could do 24 watts for a half hour. A 12 volt 2ah battery can put out 24 watts for 1 hour or 48 watts for half an hour. A 12 volt 4ah battery could put out 48 watts for an hour.
- The equation above simply means that your 12-Volt battery will be able to deliver 240 Watts of power for an hour, 120 Watts for two hours. It may also mean that your battery can provide 2 Watts of power for 120 hours. It depends on how much power you are using, the more power you use, the faster your battery will discharge.