The ipc 3 smart charger is suitable for nicd and nimh batteries as well as for the increasingly popular cylindrical li ion batteries this includes all common 18650 type batteries as well as 14500 cr 123a and other battery sizes that can be charged in the four slots at the same time the device is easy to use just insert the batteries and leave everything else to the charger the charger comes with an additional battery test function that auto detects battery condition and also whether a batte