More bloody expense. 24 volt battery pack in my electric lawn mower has had it. Charge LED shows as OK but it's got no usable capacity.
The battery pack is actually a pair of 12 volt 10 Ah sealed lead-acid batteries strapped together in a plastic box with a handle on top. The replacement pack has doubled in price since I last bought one, about 14 years ago.
I can get one from a local mower shop or buy the batteries separately but that only saves a few dollars and they have to be specially ordered in.
So I'm buying the complete unit.