This is a generic, equivalent one, 100% compatible. This 3.7V 1600mAh Replacement Li-ion battery is designed to compatible with Apple iPod 1st 2nd Generation UP425585A4H.

Specifications:
* Product Type: generic/equivalent
* Battery Voltage: 3.7V
* Battery Capacity: 1600mAh
* Chemistry: Li-ion
* Dimensions: 85.5 x 51.8 x 3.1mm (LxWxH)
* 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:
For Apple UP325385A4H
For Apple UP325385A5H
For Apple UP425585A4H
5GB Mac: M8513LL/A
5GB Mac: M8541LL/A
5GB PC: M8697LL/A
10GB Mac: M8709LL/A
10GB Mac: M8737LL/A
20GB Mac: M8738LL/A
10GB PC: M8740LL/A
20GB PC: M8741LL/A

Compatible with the following devices:
For Apple iPod 1st Generation
For Apple iPod 2nd Generation
For Apple iPod 1st Gen
For Apple iPod 2nd Gen

NOTE: This is NOT for Nano or Shuffle models.

Package Included:
1 x 3.7V 1600mAh Replacement Battery for Apple iPod 1st 2nd Generation UP425585A4H