NP-400 USB Camera Battery Charger specification:
Output: DC 4.2v/8.4V+/-0.05v, 500mA
Size : 20*46.5*84.5mm
Weight: 30g
Color : Black
Micro USB Cable:
Length: 30CM
Color : Black
Replace for these chargers:
BC-400
IMPORTANT: To buy a correct charger