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Picture of Convert your Laser Pointer to use AAA batteries
Laser Pointers are great entertainment for cats, but those pesky LR44 batteries don't last long. After my cats revolted because I forgot to buy batteries, I decided there had to be a better way! A bit of time tinkering, and I came up with this fairly easy way to use AAA (triple A) batteries instead of the LR44s. This probably only works for pointers that use the LR44.

Step 1:

Picture of
Parts and pieces. (Bits and bobs)

A laser pointer that used LR44 batteries.
3 AAA batteries.
at least 4 1/2 inches of 1/2 CPVC pipe
6 inches of 14 gauge wire


Useful things.

Needle nose pliers
Tubing cutter
Ruler
Marking pen
 
KyleS114 months ago

Sorry for not being positive or constructive. I was kinda angry that that didnt work.

KyleS114 months ago

1/2 Cpvc piping would have been great, had I wanted to use AA batteries. I don't know what pipe you were using, but the only 1/2 CPVC pipe I found anywhere had a diameter of 1 inch. Go figure. So yeah, total fail.

Why does everyone always have to steal my ideas? Nice build, though.

First person to get the idea into Instructables wins, James! Or the first to patent an idea (Tom Pearce: first to invent powered flight. Wright Brothers: first to patent it. :] )

I think your comment is a bit late, lol.
SIRJAMES094 years ago
as I had said earlier, cpvc pipe & the 14 gauge wire is sold per 12 inches only.
SIRJAMES094 years ago
many, if not most hardware stores will sell it by the foot. so if you only need 4.5 inches, you will still have to buy 12 inches....but here's the bright side; the stuff is cheap! cheap meaning low cost.

same thing with the wire.

it sells by the foot
emopants926 years ago
So has anyone figured out where to get CPVC pipe without buying an unneeded amount?
check mine out here
Anton19956 years ago
wow thank you I was thinking to make something like that for long time.Now I now how.Yay 5stars and favorite.