# How many watts does a 12 volt battery have?

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Asked By: Toni Hauck

Date created: Sat, Sep 25, 2021 2:18 PM

Date updated: Fri, Jul 1, 2022 1:57 PM

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## Top best answers to the question Â«How many watts does a 12 volt battery haveÂ»

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.