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cordless batteries

can a power inverter be used to charge batteries for cordless tools with the vehicle off or will it drain the battery too rapidly to be useful?

Re: cordless batteries

Inverters are very inefficient and draw much more than they produce. They will draw a battery down very quickly.

Re: cordless batteries

Use the inverter when the engine is running, such as when going to the jobsite or picking up lunch. The best way is to use a 110 volt charger. Swap batteries about every 4 hours and you'll never run out.

Re: cordless batteries

Some cordless tool manufacturers make 12 volt chargers. See if yours does.

I know Milwaukee tools makes one.

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