A couple of years ago I got an unexpanded A500+ free from someone (the warranty seals where still closed!) Today I peeked inside and it looked liked the battery leaked a bit . Nothing to bad I cleaned it off with a bit of alcohol on a cotton. But I guess the battery is dead. Can I use the battery from the trapdoor slot from my first miggy?
You should remove the battery completly, as it will leak more even if it is dead. Also make sure it is 100% clean, or the acid will ruin your Amiga. You probably can use the battery of that other miggy, but it is not advisable, since that one will most likely leak as well and i would rather see you removing the one in the trapdoor slot as well, as it will ruin the memory expansion if it starts leaking.
The battery has absolutely zero function other than keeping the clock up2date while the amiga is powered off.
If you really need the clock, then i suggest you buy a brand new battery and make sure that you replace it after a few years.
