Apple  iPod Touch 4th, 616-0550, 616-0551, GB-S10-314363-0100  replacement battery Replaces Apple Batteries: Apple  iPod Touch 4th 616-0550, 616-0551, GB-S10-314363-0100 Battery Type: Li-Polymer Battery Voltage: 3.70 V Battery Capacity: 930mAh MY AH RATING IS DIFFERENT? 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 tool for. Compatable with original chargers and OEM equipment.