Ryobi 18V to 40V Battery Adapter
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Ryobi makes several AC Inverters and USB chargers.
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Model information
- Source
- Printables
- Category
- Electronics
- License
- Creative Commons — Attribution — Noncommercial
Ryobi makes several AC Inverters and USB chargers. The 40V battery RYi300BG is nice because it has a 300W Pure Sine wave inverter, a USB Type C port 5/9/12/20 VDC rated at 2A, and a USB type A port rated at 3A. The only down-side is that I have a ton of 18V batteries and don't really want to purchase another $100+ battery. So I designed an adapter plate, battery carrier, and 18V battery connectors.
I only have the one Ryobi 40V tool, so I haven't tested it on the other 40V tools.
You should use two of the same Ah size batteries.
I used the strap buckle design from: https://www.thingiverse.com/thing:2814683
11/18/2020: I added a V2 battery clip that has a little beefier arms
- Ryobi RYi150BG ( https://amzn.to/3nbuQWk )
- Ryobi RYi300BG ( https://amzn.to/2Gxiwyw )
- Ryobi P743 ( https://amzn.to/3iiOfB3 )
- Ryobi 40V 6Ah Battery ( https://amzn.to/3l3xThl )
- Ryobi 18V 4Ah Battery ( https://amzn.to/33mjNS5 )
- Wire Crimper ( https://amzn.to/3igwTog )
- Wire Stripper ( https://amzn.to/33lQak4 )
- 10AWG Stranded Silicon Wire ( https://amzn.to/36q6BgU )
- 3/4" webbing strap ( https://amzn.to/3ig0sX6 )
- 18V ryobi contacts ( https://www.partswarehouse.com/Ryobi-Contact-Plate-Holder-Assembly-RY-300001044-p/hm-300001044.htm )
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Print instructions
Updated V3 10/4/2020. Re-oriented part so it would lay flat on the printer. Moved the pin locations towards the center 1.5mm for better alignment.
Installing wires: Make sure you live 1-2mm space between the spade and the bottom of the plate adapter. This space needed so the spades will go into the socket. I'll update model in future to restrict this.