This is a generic, equivalent one, 100% compatible. This 3.7V 330mAh Replacement Li-ion battery is designed to compatible with Apple iPod Nano 1 1st Gen MP3 1GB 2GB 4GB.

Specifications:
* Product Type: generic/equivalent
* Battery Voltage: 3.7V
* Battery Capacity: 330mAh
* Chemistry: Li-ion
* Condition: new, 1 Year Warranty!
* no memory effect so that you can charge battery at anytime.
* Integrated microchip prevents overcharging & lengthens battery life.

Compatible Part Numbers:
616-0223, 616-0224

Compatible Model:
For Apple iPod Nano (1st Generation) Series: 1GB, 2GB, 4GB

Package Included:
1 x 3.7V 330mAh Replacement Battery for Apple iPod Nano 1 1st Gen MP3 1GB 2GB 4GB