Most NiMH cells have a capacity of around twice what a NiCad has, so a NiCad charger that works at a C/10 charge rate will be charging NiMH cells at C/20. That can be an acceptable trickle rate for NiMH cells, but I prefer something in the C/40 neighborhood. I put some in an electric shaver (really crude charger) and they last longer than NiCads.
Proper low self discharge NiMh cells have about 1/10th the self-discharge rate of NiCads. I have some in some test equipment that seldom gets used and after over a year of storage were still going strong and provided hours of run time. NiCads would be dead after a couple of months of storage.
Most NiMH cells have a capacity of around twice what a NiCad has, so a NiCad charger that works at a C/10 charge rate will be charging NiMH cells at C/20. That can be an acceptable trickle rate for NiMH cells, but I prefer something in the C/40 neighborhood. I put some in an electric shaver (really crude charger) and they last longer than NiCads.
Proper low self discharge NiMh cells have about 1/10th the self-discharge rate of NiCads. I have some in some test equipment that seldom gets used and after over a year of storage were still going strong and provided hours of run time. NiCads would be dead after a couple of months of storage.
