Apple iPod 3rd generation replacement battery.
Replacement Apple iPod battery for 3rd generation Apple iPod, replaces the 616-0519, E225846 and BPD1081 batteries for 10gb, 15gb, 20gb, 30gb, 40gb iPod.

Replaces Apple batteries:
616-0519
E225846
BPD1081
AIP-125L1
CS-ipod3HL
CA0147.

Battery Type: Li-ion
Battery Voltage: 3.7-volt
Battery Capacity: 1100mAh.

Fits Apple iPod 3rd generation:
Apple 10GB iPod (M8976LL/A),
Apple 15GB iPod (M9460LL/A),
Apple 20GB iPod (M9244LL/A),
Apple 30GB iPod (M8948LL/A),
Apple 40GB iPod (M9245LL/A)
Apple IPOD MP3 -3.

The Ah is different on my old battery, can I still use yours?
The Ah (Amp Hour) Rating is the storage (or fuel) of the battery, the higher it is the longer the battery lasts between charges, bit like petrol in your car so a higher or lower one makes no different to the performance, just the length of time you can use the battery for between charges.