Types of batteries supported:

 Alkaline (previously non-rechargeable)
 RAM (rechargeable Alkaline Manganese)
 Ni-CAD (Nickel Cadmium)
Ni-MH (Nickel Metal Hydride)
 

Full CE approval with the following protection schemes:
Alkaline battery protection, faulty battery protection, overcharge protection, short circuit protection, wrong polarity protection, negative delta voltage protection, zero delta voltage protection, timer protection and high temperature protection.