Ryobi 18V to 40V Battery Adapter by nafis

Last crawled date: 3 years, 4 months ago

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 )
Ryobi 18V contacts ( https://www.partswarehouse.com/Ryobi-Contact-Plate-Holder-Assembly-RY-300001044-p/hm-300001044.htm )