Power Drill on Steroids - Huge UPS Battery Transplant




Introduction: Power Drill on Steroids - Huge UPS Battery Transplant

About: I'm a Linux enthusiast, avid diy-er. I work for a company that manufactures "smart" invertors (an Uninterruptable Power Supply for the entire house). I've installed wind generators, solar panels and various ot…
Replacing a dead original battery with a huge power cell from a computer UPS (Uninterrupted Power Supply uning)

This instructable was inspired by this one by ikssk, except I didn't want to buy a whole bunch of new cells. Instead I used a BIGGER battery from an Uninterrupted Power Supply unit that I had in my possession already.

The power tool I have is a Hitachi DS 12DVF3 which came with a flashlight. Silly of me I lended the screwdriver to a friend and very soon one of the batteries started to misbehave. It could no longer power the drill because it was only able to hold up to 11 volts. The flashlight worked somewhat OK, but this is of almost no use to me. Thus, this project.

Step 1: Disassemble the Old Battery.

Disconnecting everything: with caution please. It will zap you if you're not careful – battery cells sent visible sparks with sound toward an carefulness dismantler. Make sure you don't short them... Also, the connector pad is very fragile in this particular drill. I broke it and had to use super glue and hot glue to put it back into its original position.

Step 2: Assembly of New Cell & Drill

Putting the battery head back into the drill minus the old cells.

Drilling a bunch of holes for nylon ties and wires towards the new battery.

Connecting the new battery.

Testing: device operational

Testing: charger operational

Adding hot silicone and tying the new battery up with nylon ties.

 Aesthetic touch: using Duct Tape for better protection and look : )

Oh, and short video here:

Yes, It's a bit heavier now and my right arm is a bit stronger :)

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    12 years ago on Introduction

    I've seen things done with electric-drills before, but nothing like this. It looks heavy, but I should think it works. Nice job.



    Reply 12 years ago on Introduction

    Thank you! I'm real impressed with the soup cans on headphones. Might just make one of them bad boys one of these days. I'm pretty sure anyone wearing such a device will get a lot of attention...


    Reply 12 years ago on Introduction

    Thanks, I much prefer what I just posted today, the functionality is much better. But I've seen these drills snapped in two (you gan guess where they break if you drop them) held back with cable-ties and such. This is the best mod I've seen so far (tape just had to be there)