What sort of care do the NiCads require?
Ideally, you should wait till the battery is drained before recharging it to get the maximum life. However, it’s convenient to charge the batteries overnight – regardless of how much charge remains. Thus, you will be charging the batteries inefficiently and they will have a shorter life but you will save time and trouble by charging them each night. Overcharging (for more than 12 hours) will not hurt the machine nor the batteries.
