I think 10 NiMh AAA batteries (the small ones) might work, but have not tried it — this project is still to come, some dark winter's night. Ten regular AA "button" batteries will not physically fit in the 540c battery case; don't waste your money.

The utilities are, as I recall, 1. Intelligent Battery Recondition (Apple); 2. LIND Battery Utility (called BU500 as i recall); and 3. EMMpathy. EMMpathy is arguably the best, but IBR is also useful in reviving these batteries. Find EMMpathy and you should be OK. But first you'll want a HD.

Search on the forums for "540c battery" and all will be revealed. Nobody is going to repeat it all again.