DIY Ryobi Emergency Light - Quick Look

A quick look at my DIY, 3D-Printed Ryobi Automatic Emergency Light!
Please click SHOW MORE!
This is a project to use existing power-tool batteries I already have to create a light which turns on automatically during power-outages. It can also be turned on manually to simply use it as a flashlight.
See the full step-by-step video at: • Ryobi Automatic Emerge...
Blog post with lots more details!
300mpg.org/2023/04/03/ryobi-a...
The LED light is one designed to run on a range of DC voltage inputs, including 12 and 24VDC. That's perfect for our 18V Ryobi Battery.
See the full-length, step-by-step build process video at: • Ryobi Automatic Emerge...
STL files:
www.thingiverse.com/thing:594...
or
www.printables.com/model/4419...
Parts List -
LED Light: amzn.to/3JSX18q
ON/OFF/ON Switch: amzn.to/3Ket1Fo
Relays: amzn.to/3TNGcQZ
1/4" Spade Quick Disconnects: amzn.to/40sUfhl
DC Input Jack: amzn.to/3TQ5XQE
Keystone 209 Clip (Ryobi Battery Contact): amzn.to/3niCC56
Any low-power 12V DC Power Adapter, for example: amzn.to/40eKNOx
Just make sure the size of the power adapter matches the DC input jack.
Also needed:
Soldering iron, solder, 18 AWG stranded wire, wire stripper, wire crimper.
This project was printed on an Ender 3 S1 3D Printer:
amzn.to/3LY1h9B
Attribution:
The 3D print is a modification of a project by Thingiverse user "toeonly" www.thingiverse.com/toeonly/d...
Which was originally based on a Ryobi Soldering Station by JeffWDH: www.thingiverse.com/thing:430...
The power meter I was using to show wattage is a "Kill-a-Watt" style, but a different brand name. I like it because it holds energy usage info after being removed from wall power: amzn.to/3LYuReZ
This is just a quick look at this project. For the full "How-To" Video, please see: • Ryobi Automatic Emerge...
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[@FrankGraffagnino]

Super cool! Appreciate you taking the time to document it and share it with the community. We need one for DeWalt batteries!

[@SheepShearerMike]

Like it, very handy.

[@ZeusAndKiller]

That is so cool

[@coreybabcock2023]

I did a similar thing with a hyper tough flash light

[@coreybabcock2023]

That Tyco connector is called a weather pack connection in the mechanic world

[@ProlificInvention]

Very neat design and device. I like it, and all your projects. Just throwing it out there: I made an emergency light a few years back that used an old handheld large flashlight: I replaced the internals with a holder containing 2 18650 batteries, a charge port, and an old led car headlight in place of the bulb. It was very bright. As an experiment I left it on and it continued to produce usable light for 24 days (enough to read by at least) I thought this was very interesting and I've found anecdotal supporting information on how as well as why this worked long term. I was worried the batteries would not charge or even catch fire from such a deep discharge, but they charged all the way back up with no issues after 7 hours.

[@BenjaminNelsonX]

I was looking at taking a Ryobi flashlight which I bought cheap and simply ADDING circuitry to make it Auto-On in a blackout. Unfortunately, there was just NO room inside the housing for it!
18650 cells are great for all sorts of projects! On this project, I'm just reusing cordless tool batteries I already have.

[@D0li0]

Does the power supply also charge the battery?

[@BenjaminNelsonX]

No, it doesn't, and there's no need for it to. Charging higher voltage lithium batteries gets complicated fast. I already have plenty of these batteries and chargers for them. All I need to do is throw a charged battery on here. The battery doesn't provide any power until the light comes on, so it's not like the battery is slowly discharging and needs a charge.

[@D0li0]

@@BenjaminNelsonX true true. Was just curious.