DIY Ryobi 18V One+ Powerstation

thingiverse

I have a collection of various Ryobi 18V power tools and an assortment of One+ Lithium batteries. I thought it would be great to utilize these batteries for other purposes. I decided to create a Power Station that could charge USB devices and run 12V cigarette lighter socket devices. I also added an LED light for emergencies. It has space for three different sockets. I currently use one with two 2.4A USB connections, another with a QC 3.0 and Type C connectors, and a third that is a 12V cigarette light socket. I got inspiration from https://www.thingiverse.com/thing:2467237 This Power Station can easily charge your cell phone or run a laptop. You could use the 12V socket to run a small AC inverter or a CPAP machine when you are camping or traveling. Here is a movie of the build process: https://youtu.be/p9G_shkDBt4 An earlier prototype can be viewed at: https://youtu.be/rdvFLKf1roE I recently tested all my Ryobi tool batteries for capacity. I used a load tester (https://amzn.to/2SOyXcg) running at 10A/12V regulated load (https://amzn.to/2SGAoei). Ryobi 9Ah/162Wh P194 got 133Wh Ryobi 6Ah/108Wh P193 got 98 Wh Vanon 6Ah / 108Wh got ONLY 58 Wh Ryobi 4Ah/74 Wh P108 got 55Wh Ryobi 3Ah/54 Wh P191 got 42Wh Ryobi 1.5Ah/28 Wh P107 got 19Wh Ryobi ?Ah/24 Wh P102 got 13Wh Here is the parts list (just a note, Amazon has been substituting things check descriptions carefully): Ryobi 18V 9Ah Lithium battery (https://amzn.to/38oLFFm) Bestek 300Watt Pure Sine wave AC inverter (https://amzn.to/37kdnBQ) Ryobi 150-Watt Powered Inverter, with 2 USB Ports and One 120-Volt Outlet (https://amzn.to/2Shahu1) Ryobi 18V One+ Dual Chemistry Vehicle charger (https://amzn.to/2vouV2n) DC-DC 10A 12V buck converter (amazon no longer sells... looks like it is still available on Alibaba under SZWENGAO New Design Boost-Buck DC DC Converter 8-36V to 12V 10A 120W Car Voltage Stabilizer Regulator with CE RoHS or on Ebay: https://www.ebay.com/itm/8V-36V-to-DC-12V-Boost-Buck-Power-Converter-Voltage-Regulator-10A-120W-For-Cars/124188673950) cigarette lighter socket (https://amzn.to/3byDuYX) dual 2.4A USB ports (https://amzn.to/31Lom93) Flexible 12 AWG Stranded Copper Wire (https://amzn.to/38Ni1JW) 3/4" strap / Heavyweight Polypropylene Webbing (https://amzn.to/39Lom93) Hackaday just picked up on this project and wrote an article! (https://hackaday.com/2020/02/20/diy-power-station-puts-ryobi-batteries-to-work/) I went through several prototypes making improvements on each one. That's the beauty of 3D printing. Quick turn-around to try new things! Revision History (see photo): prototype -- tested battery connection prototype V1 -- functional test of DC-DC converter, USB ports / 12V cigarette socket prototype V2 - New tower shape with 3 socket holes prototype V2a - added handle strap prototype V2b - added second switch to turn all power off, thickened strap holder prototype V2c - lengthened DC converter opening, beveled edges, widened strap holder opening future improvements: label switches with icons, put switch notches in model Here is a link to the CAD STEP file (I couldn't get thingiverse to upload it): http://howmuchsnow.com/batterypowersystem/ryobipowerstationV3c.stp https://www.prusaprinters.org/prints/22019-diy-ryobi-18v-one-powerstation