-External USB charger for Li-Ion 18650, 18500, RCR123A and Mi-MH AAA and AA batteries.
-Also provides external outbound backup power from inserted battery to devices that support USB charging. E.g. iPhone, Android, tablets, MP3 players, GPS units, etc
-Small and portable for those on-the-go. Includes USB cord.
Input: 5-12V DC
Output: 4.2V/1.5V 1A DC