T-Mobile G1 Super Extended 2300mAh Lithium Ion Battery with Black Battery Door

The T-Mobile G1 Super Extended 2300mAh Lithium Ion Battery will give your T-Mobile G1 power when it needs it. The Super Extended Battery is designed specifically for T-Mobile G1 and comes with a black battery door. This extended batttery is great if you want to maximize the features of your T-Mobile G1 device. Once you try the Super Extended Battery, you'll never look back.