Battery options for 82143A printer

[Dave Britten]

Alright, I cracked open the old pack and had a look around. AAs definitely won't fit, but flat-top sub-C NiMHs are available from Batteries Plus. 4/5A are the same length, but smaller diameter.

The pack is built in a typical series layout, and the cells soldered/welded together at the tabs, so nothing fancy at all. The contacts both attach to the same end of the pack. I think I should be able to pop the contacts off, glue them to the inside of the plastic shell, then just put in 4 sub-Cs, perhaps with a thin piece of foam tape at the end of the pack without the contacts to add a little bit of spring tension, and some foil in a few places to make sure the positive ends of the flat-top cells make contact.