I've come into an electric bike that currently has a NiMH, 24v, 20cell battery pack. On the pack as well it says 8000mah. The previuos owner has misplaced the original charger :(
The bike has been unused for over a year so would it be safe to assume the batteries are dead or going and won't last long? They were probably never discharged before going into storage in a tropical climate. If I hook it up to a multimeter, what voltage would mean empty and what would mean full? What settings should the multimeter be set to?
Main question is, can I create my own battery pack that uses say only 15 cells max (so I can use my current NiMH charger/discharger) that can give me the same if not a bit more power? I assume I can't test or fully charge/cycle the current 24v/20cell battery on a NiMH charger/discharger rated for only 1-15 cells?