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Battery Pack for 18V Ryobi Tools

Battery Pack for 18V Ryobi Tools

This is a quick and easy way to make a battery pack that will allow you to use a Ryobi 18V tool for four times as long as with one battery. Sometimes a tool will die in the middle of an operation, this can mess up what you're trying to do and is dangerous in some cases.

Via Instructables | Posted on 2008.05.04 at 16:28

Make a simple battery discharger for NiCad or NiMH battery packs.

Make a simple battery discharger for NiCad or NiMH battery packs.

This instructable will show you how to make a simple discharger for your NiCad or NiMH battery packs for Airsoft AEG's or RC cars, boats planes, whatever.

Via Instructables | Posted on 2008.04.24 at 20:27

Mighty Bright Light Battery Hack

Mighty Bright Light Battery Hack

So you don't have enough batteries to power that Mighty Bright of yours? Well heres a thirty second hack to only use however many batteries you need.

Via Instructables | Posted on 2008.04.21 at 12:53

Dell Axim External Battery Pack / Charger

Dell Axim External Battery Pack / Charger

This is a tutorial showing how to build a simple circuit that will allow you to run a Dell Axim x50v series device (or anything else that uses 5 volts DC at up to 1 amp, such as an iPod) on AA or 9v batteries (or any other 8 to 15 or so volt source).

Via Instructables | Posted on 2008.04.17 at 21:58

DIY Solar Boombox /GhettoBlaster"

DIY Solar Boombox /GhettoBlaster"

You can construct a solar powered boombox for as little as $75 Combine a small, energy efficient digital amplifier, cheap bookshelf speakers, batteries, a small solar panel, and your MP3 player as a source.

Via Instructables | Posted on 2008.04.15 at 16:26

DIY 2 bucket dripper tracker for solar cookers and solar panels is cheap and it works!

Tracking makes your equipment more productive but it can be expensive. Here is a cheap tracker made from old junk that does the job. I have used it and it does the job.

Via Instructables | Posted on 2008.04.12 at 22:29

Small Solar Panel

Small Solar Panel

Construct a small, portable solar panel that will charge two AA rechargeable batteries in a day or two. Use the batteries to make any battery-powered device solar powered.

Via Instructables | Posted on 2008.04.10 at 12:17

Home made solar tracking accumulator

This gives details about how to make the mould, how to cut the plastic backing for the reflector and how to attach the reflector to the equatorial mount so it can track the sun all day and keep focused on one spot.

Via Instructables | Posted on 2008.04.08 at 01:23

AA to D cell adapter

AA to D cell adapter

An easy-to-build adapter that allows you to use AA batteries (especially rechargeables!) in place of D cell batteries in many devices. .

Via Instructables | Posted on 2008.04.02 at 23:29

Makeshift power supply for your guitar pedal

Makeshift power supply for your guitar pedal

Ok, worst-case scenario. . . . You are about to play yet another gig that will make you even more rich and famous. This time, you have everything(including drumsticks, see http://www.

Via Instructables | Posted on 2008.03.25 at 20:55


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