This is a generic, equivalent one, 100% compatible. This Replacement battery charger Kit for Nikon EN-EL21 ENEL21 MH-28 1 V2 EN EL21.

Features:
* Product Type: generic/equivalent
* Condition: new, 1 Year Warranty!
* Super thin and lightweight which is ideal for travelling.
* The charger Input voltage: 5V, Output voltage: 4.2V, Input current: 1-2A, Output Current: 0.6A.
* LED indicate: Red light for charging; Green light for standby or full-charge.

Compatible with battery models:
EN-EL21, ENEL21

Compatible with charger models:
MH-28

Compatible with the following camera models:
For Nikon 1 V2