Battery insert compatible with Ryobi 18v

Updated 05/22/2025

Allows you to power your tools, fans, speakers, lights, and some inverters from either…

A) cable which connect to a distant battery, dual 18v batteries, a bank of some other make/model batteries, a powerful enough wall-wort

or…

B) two directly attached 18v batteries (for increased runtime or hot-swap ability)

Part options include…

A) 18v battery insert with just a PowerPole connector to your own power source
     or to another PowerPole connector mounted ontop the dual 18v battery holder

or…

B) 18v battery insert mounted ontop the dual 18v battery holder directly (results in a pretty heavy tool)

Suggested print settings:
 - 0.20mm QUALITY
 - Prusament PETG (pictured using OVERTURE PETG Grass Green)
 - Infill density 20%
 - Infill pattern Cubic
 - 3 Perimeters
 - Supports required

For just the battery insert…
Qty.2 of Keystone 209. 1 Cell Leaf Spring Battery Contact
Qty.2 of M4-0.7 x 20mm Socket head cap screws
Qty.2 of M4-0.7 x 12mm Socket head cap screws
Qty.2 of 14AWG silicone wire 4-1/8" long
Qty.1 of Anderson Powerpole connector

If also printing the dual 18v adapter…
add Qty.4 of Keystone 209. 1 Cell Leaf Spring Battery Contact
add Qty.2 of 20A 50V Schottky Blocking Diodes
If connecting directly with the battery insert, then…
substitute Qty.2 of M4-07 x 25mm (up to 30mm) Socket head cap screws
substitute Qty.2 of M4-0.7 x 14mm (up to 16mm) Socket head cap screws

** Screw connection is required - do NOT super-glue these parts together!

If you need the STLs of these parts, please see:
https://www.printables.com/model/1303958

Don't have a 3D printer yet? That's OK, order already printed from…

https://jpelectron.etsy.com