Posted: 4/21/2026 2:41:26 PM EDT
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I have a couple of modules with leads that attach to my DeWalt 20V batteries. They are supposed to be used for things like Powerwheels kids toys as a way to use DeWalt batteries with the car. My question for the ARFCom DIYers is are there any other uses for 20V thay I can use these modules for? I have tried to search 20V lighting or 20V devices, but im not coming up a whole lot. Its basically a module with a switch and has 2 leads, positive and negative. Clips onto the battery. Wondering what else I can power with 20V. |
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it works to roll up and down the rear window on a bronco when you're untangling and fixing broken wires. I have a couple of LED amazon lights with blades on the leads, I can plug those into a 20v Dewalt and they work. those Amazon 12v DC lights are good from 12 to 36v |
Where is my black turtleneck? I can’t do spy shit without my black turtleneck.
Tennessee Squire
Tennessee Squire
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Get a step-down DC-DC converter for 12V and you can run most 12V accessories that are high draw loads (so radios, lights and stuff but probably not a 12V air compressor.) I do this with my Makita 18V packs and two-way radios and phone chargers.  
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Originally Posted By seek2: Get a step-down DC-DC converter for 12V and you can run most 12V accessories that are high draw loads (so radios, lights and stuff but probably not a 12V air compressor.) I do this with my Makita 18V packs and two-way radios and phone chargers. www.amazon.com/dp/B097DSMLQ4 These 20v to 12v step-downs might be a good idea for 12v lighting and 12v outlets. I might be able to do something with that in our greenhouse. In an enclosure, of course. |
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Originally Posted By PKT1106: I have a couple of modules with leads that attach to my DeWalt 20V batteries. They are supposed to be used for things like Powerwheels kids toys as a way to use DeWalt batteries with the car. My question for the ARFCom DIYers is are there any other uses for 20V thay I can use these modules for? I have tried to search 20V lighting or 20V devices, but im not coming up a whole lot. Its basically a module with a switch and has 2 leads, positive and negative. Clips onto the battery. Wondering what else I can power with 20V. Get a DC-DC converter, and you can run anything you want. Also, I know a dude who buys tool kits, sells the tools, and keeps the batteries more or less for free. Then he builds his kids super-modified electric ride-ons and powers them with the tool batteries. |
| Fyi the nominal voltage on the Dewalt 20v batteries is 18v. They call them 20v so as to not confuse them with their 18v tools/batteries from years ago. Those 18v batteries had the “male” end and they slid into the “female” end on the tool. The 20v ones slide sideways. |
The Emperor is naked.
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I daisy chained several together to unluck the brakes on my new mailbox post to get it in position. 80V brakes Attached File |
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I purchased a couple of 20v to 12v converters and some cheap 12V lights to use under a storage loft in our barn. Mounted the converter and the battery module to a post and ran low voltage wiring to all the lights. Works decently. Its not OSHA rated for lumens, but it will be useful on a cloudy day when we need to work under the loft. And it takes advantage of what we already have, lots of DeWalt batteries. Attached File Attached File I also have a couple of DeWalt battery adapters that convert to 120v, so I put some cheap LED shop lights at the other end to try the adapters. I put a Kill-O-Watt meter on the adapter and the lights and all four lights put around 80w together. Again, probably not OSHA, but decent for what we need. Attached File Attached File Everything combined lights it up pretty well. Attached File I have 8 100w solar panels on the barn with 2 charge controllers, 2 100AH batteries and a 3000w inverter that runs 6 10000lumen shop lights. Its also wired to an outlet so I can recharge the DeWalt batteries in a pinch with the barn batteries. |
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Originally Posted By seek2: Get a step-down DC-DC converter for 12V and you can run most 12V accessories that are high draw loads (so radios, lights and stuff but probably not a 12V air compressor.) I do this with my Makita 18V packs and two-way radios and phone chargers. www.amazon.com/dp/B097DSMLQ4 This is what i do. Ive used them to run anything 12v, power wheels, water pumps, lights, my yard sprayer. Anything that would plug into a cigarette lighter plug in your car. |