If you're working on a specific model, I can tell you if its PRAM battery is or in a holder . Do you know the model of your Macintosh? Are you trying to replace a dead one?
Getting Started With Your Vintage Macintosh – Garrett Fuller MACINTOSH PRAM BATTERY
A leaking battery can leak hazardous electrolyte onto the motherboard, potentially destroying the computer. If you're working on a specific model, I