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Questions tagged [battery]

For questions on batteries and battery technology in retrocomputing hardware

1
vote
2answers
112 views

How to replace battery for old AT mainboard?

On my 286 board, the CMOS battery is missing -- as with most boards of that age. I see no other battery connector on the board. However I would love to fit a battery in there, so I do not have to ...
3
votes
1answer
127 views

What are best techniques for repairing a chemically damaged PCB?

I have rescued many retro computers from the hazards of leaky batteries, and occasionally replaced capacitors that were suspicious. Except for one still unusable Mac SE/30, all my repairs were done ...
3
votes
1answer
110 views

What is stored in IIgs PRAM?

What is stored in the IIgs PRAM? I'm going to replace my PRAM battery in a ROM 03 IIgs and that got me thinking about what is stored in PRAM. I know that date and time are stored, but not if all the ...
13
votes
3answers
316 views

Dealing with old laptop batteries?

So, I inherited this old Epson Equity LT... It's a laptop with internal Ni-Cd batteries. No battery quick disconnect, but apparently they're at least somewhat removable as the manual says that you ...
10
votes
3answers
1k views

Restore corroded AT motherboard with dead CMOS battery

I have acquired a nice MS-DOS PC from EET Computer (I couldn't find any information about them). It actually works, but I have two errors on boot: Floppy disk drive controller failure; CMOS Battery ...
15
votes
4answers
517 views

Appropriate battery replacement for my A3000

I know the interwebs are full of information relating to the replacement of batteries for various computers, and the Amiga's are no different. But before I do anything rash, I wanted to ask for some ...
19
votes
1answer
2k views

Game cartridge save-game battery lifetime

Some cartridges on older consoles (like on the SNES) had battery save in them, so you can turn off the console, come back some time later and continue where you left off. These use an actual battery ...
10
votes
1answer
151 views

Powerbook (140, 170) battery dimensions/components/specs for reverse engineering

I have a PowerBook 140 that — apart from a dead screen requiring the inevitable capacitor replacement — seems to work well. It has no battery, though, and any available battery will likely have 25+ ...
4
votes
1answer
105 views

How do I replace the battery on my Palm Zire 21?

My Zire 21 PDA's battery won't hold a charge for more than a few minutes. How do I replace it?