I've recently gotten an Intellipeak Ice Charger/Discharger/Cycler and it pretty much does anything that can possibly be done to a battery but it does it automatically, for example, if you are using a new NiCad battery, it's a good idea to fully charge and discharge it about three times before you use it normally because it kind of "breaks in" the cells. this does that for you, all you have to do is tell it how many cycles, what the low voltage is before recharging occurs, and the maximum voltage before the discharging begins. it's hella awesome, it's ever got settings for all different types of batteries with a selectable amount of cells