Re-cell an AS3 battery - can it be done?

[Hightower]

I have a few AS3 batteries that are getting old, and not holding a charge like they used to. Has anyone sucessfully re-celled the battery pack? Can this be done, and any hints would be appreciated.

[download]

Li-ion 7.2V 3.6Ah is what I had done recently.
(Notebook size 3.6V 1.8AH x 4)
3 vertical 1 hozonital

Drill 2mm holes around the bottom, take out the old batteries & replaced.
(For Li-ion battery that protective circult board must be applied).
Epoxy seal it.
Normal charging is about 4 hrs.
I got more than 30 monitoring hrs now

[Chrisjz]

I have done the same thing except I used NiMh cells. The trick is to get the bottom off without damaging it so you can easily re-seal it. I use a rubber based glue used in marine applications. It's strong, provides a good weather seal and can be removed when the cells need replacing again.

[Hightower]

WEll, I got a bad battery pack, will try to use an xacto knife and slice the bottom - VERY carefully.

If I do figure out a good way, will report back.

Thanks all

[trioxide]

I just recelled my AS2 battery. Used 6x SUB-C 2700mah cells from a local distributor.

I used a dremel to cut the base of the battery off. It's important to not damage two small components on the film which surrounds the cells. I did this and had to make some small cables up, covering the destroyed bits of foil with heatshrink and connecting them to the right contacts (hard to explain!)

Vic