If the battery isn't leaking (or has no corrosion marks)
just let the A2000 running over night and check the battery after.
If it is leaking remove it as fast as possible. It will damage the motherboard severly. :-(
As far as I Know you can't exchange the battery against another type of battery. But these
NiCd Varta batteries are availabel at every Electornicshop and don't cost a house. :-)
A new one will last about ten years.
Markus
