195mAh 4.8V (Internal) NiMh pack mod....
Posted: Thu Dec 14, 2006 5:46 am
OK. Not that I'm fixated on these little buggers or anything, lol, but I went and installed a higher capacity pack I made.
Like LBRC, I got some 195mAh 1/3AAA NiMhs. Now, as I'm finding, 1/3AAA is more of name than a standard since these cells are a tad longer than your typical 1/3AAA's.

I had to hack (just a little bit, NOT!) the battery tray to allow this longer pack to be installed. The problem here is that you need to remove the two metal posts that hold the battery cover screws in place. Once you removed them you need to cut back the plastic a bit. See the pic below.

To say that it's a tight fit is a bit of an understatement but it DOES WORK!

Cool!
I used the metal tabs that came with the batteries to solder to the next pack. I then bent them over. I made sure I only used enough solder to main a solid join, then I removed any excess. You want to keep the overall length to a minimum, since it's gonna need space for the wires on the outter edge.
I got my 195mAh nimhs from a local mob in Aus.
http://www.batterypower.com.au/nimh.htm
You fellas should be able to find similar ones locally.
I haven't tested them yet. The batts are new so I'm giving them a few cycles on the charger first. I will test it against my other stock and let you fellas know in a day or two. We'll see...
The battery cover goes on still and sticks itself into place. I'm not really worried about not using the screws anymore. A bit of tape should do the trick.
ph2t.
Like LBRC, I got some 195mAh 1/3AAA NiMhs. Now, as I'm finding, 1/3AAA is more of name than a standard since these cells are a tad longer than your typical 1/3AAA's.
I had to hack (just a little bit, NOT!) the battery tray to allow this longer pack to be installed. The problem here is that you need to remove the two metal posts that hold the battery cover screws in place. Once you removed them you need to cut back the plastic a bit. See the pic below.
To say that it's a tight fit is a bit of an understatement but it DOES WORK!
Cool!
I used the metal tabs that came with the batteries to solder to the next pack. I then bent them over. I made sure I only used enough solder to main a solid join, then I removed any excess. You want to keep the overall length to a minimum, since it's gonna need space for the wires on the outter edge.
I got my 195mAh nimhs from a local mob in Aus.
http://www.batterypower.com.au/nimh.htm
You fellas should be able to find similar ones locally.
I haven't tested them yet. The batts are new so I'm giving them a few cycles on the charger first. I will test it against my other stock and let you fellas know in a day or two. We'll see...
The battery cover goes on still and sticks itself into place. I'm not really worried about not using the screws anymore. A bit of tape should do the trick.
ph2t.