Lately, I sort have been wanting to pick up a few screwdrivers or bits for some of the older game carriages that use a Lithium battery (NES, SNES, Gameboy, etc), since I want to have one on hand for switching out the batteries once the time comes. I've looked on ebay, although most of them are for the consoles themselves. Anyone have any advice for what I will need and where I can find it?
You need a 3.8mm gamebit for opening Nintendo cartridges (SNES, N64, gameboy, etc) although I believe the Genesis cartridges are a 4.5mm. All Nintendo consoles > NES open with a 4.5mm gamebit.
I got me the Access Pro Toolkit some month ago seems to have most stuff you need and it's pretty cheap too.
Just looked it up. The company's website is horrible, but I managed to find a few stores online that sell it. Thanks for letting me know! I'll try to pick it up sometime in the future when I have some extra cash.
If you need to get Sega gear apart in a hurry, I've found that a 5/32 inch hex driver removes the larger Gamebit bolt nicely. It's no good for getting it back in, but if you're going to reassemble the stuff I'd suggest replacing everything with standard Phillips head screws.
Homewide near my home sell a "gamers driver kit" with about 6 different screw drivers in it for game consoles and carts. I can pick you a set up if you can't find any localy. Yakumo
Most electronic places in Hong Kong did have a section which had screwdrivers to open up GBA / DS / Gameboy units. They were quite cheap too.