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#297511 - 11/10/20 02:20 PM Cordless Tool power bank?
hikermor Offline
Geezer in Chief

Registered: 08/26/06
Posts: 7416
Loc: southern Cal
Like many of us, I have been drifting to cordless tools recently. I have stuck to one brand, so that the batteries are interchangeable.

I am beginning to look on my accumulating batteries as a useful power sources to power other small appliances - lights and cell phones, primarily.

Is there some sort of gadget that I could fasten to a cordless battery so that i could transfer juice from the battery to another appliance? I would think there would be a definite market for such an item, although it would probably have to be specific for each different brand of cordless...

Thoughts, anyone??
Geezer in Chief

#297512 - 11/10/20 02:23 PM Re: Cordless Tool power bank? [Re: hikermor]
Ren Offline

Registered: 11/05/07
Posts: 284
Loc: Wales, UK
There are adaptors to provide USB power via powertool batteries. Think most brands have one.

Eg Dewalt's


And if want 120v output, from 4 powertool batteries...


Edited by Ren (11/10/20 02:28 PM)

#297515 - 11/10/20 04:22 PM Re: Cordless Tool power bank? [Re: hikermor]
roberttheiii Offline

Registered: 02/13/09
Posts: 344
Loc: Connecticut, USA
What brand tools are you using? For example, like DeWalt, Ryobi makes one... https://www.ryobitools.com/products/details/150-watt-battery-power-inverter

#297516 - 11/10/20 04:37 PM Re: Cordless Tool power bank? [Re: Ren]
hikermor Offline
Geezer in Chief

Registered: 08/26/06
Posts: 7416
Loc: southern Cal
Thank you so much, Ren!

DeWalt happens to be the brand of cordless tools I buy; I have already placed the order!
Geezer in Chief

#297526 - 11/10/20 09:05 PM Re: Cordless Tool power bank? [Re: hikermor]
Famdoc Offline

Registered: 04/29/09
Posts: 137
Loc: PA
But wait: there's more!!!

There are a number of battery adapters that will allow a specific brand to be powered by other brands batteries Scroll all the way down:


As might be expected, Youtube has a number of videos on the topic:


Some of the brands have a battery replacement adapter with a cord attached to let you convert some battery powered tools to AC power:


The country of origin appears to be what you might guess, and reviews are, shall we say, uneven.

#297527 - 11/10/20 09:20 PM Re: Cordless Tool power bank? [Re: hikermor]
dougwalkabout Offline
Crazy Canuck
Carpal Tunnel

Registered: 02/03/07
Posts: 2942
Loc: Alberta, Canada
Most cigarette lighter USB adapters will accept 12-24 VDC input. So as long as you are clear on the polarity of the connection points of the cordless tool battery, a phone charger could easily be jury-rigged together.

Edited by dougwalkabout (11/10/20 09:21 PM)

#297536 - 11/12/20 03:49 AM Re: Cordless Tool power bank? [Re: hikermor]
Ratch Offline

Registered: 08/05/17
Posts: 36
I use ryobi power tools, cordless, and have been pretty satisfied. I like the 12v charger thatís available in case of power outages. Happy to learn that a small inverter is available to charge cellphones and the like.


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