Xperia:Battery Replacement

The battery can be replaced by sliding off the back cover, pulling the old battery out, and putting the new battery in.

Official Battery

The official OEM (original electronic manufacturer) battery specs:

• Sony Ericsson BST-41
• 3.6 V
• 1500 mAh
• 5.4 Wh

Replacement Batteries

There is also a very highly recommended extended battery by Cameron Sino. It's about twice the physical size as the official battery, and paired with the right performance-focused setup, can easily give you days of constant gameplay. Beware of counterfeit batteries!

Specs:

• Cameron Sino extended battery pack
• Model CS-ER800WL
• Part No. BST-41
• 3.7 V
• 2600 mAh
• 9.6 Wh
• Comes with an unbranded replacement back cover to fit the battery