One product handles batteries of many shapes and sizes, including AA, AAA, AAAA, C, D, N, 9V, 6V (Lantern) and Prismatics (regular and flat types). Different size batteries may be charged simultaneously using the 4 available charging bays and 2 terminals. It handles all the common domestic battery types including Alkaline, RAM (Rechargeable Alkaline Manganese), Titinium, NiCd (Nickel Cadmium) and NiMH (Nickel Metal Hydride). Different battery types may be charged simultaneously because each cell is individually charged.

Different battery types give different results with the Battery Doctor:

Ordinary Alkaline batteries are rechargeable up to 15 times*
RAM batteries are rechargeable up to 25 times*
Titanium batteries are rechargeable up to 15 times*
NiCd up to 1000 times* (about 800 times using standard rechargers)
NiMH up to 600 times* (about 500 times using standard rechargers)