The extended battery for your Motorola device is a 1640 MAh Lithium Ion battery. With a spare battery on hand, you won't need to worry about running out of power. The extended battery may not fit with cases designed for the standard battery due to the added width.
The Motorola 1640 mAh Extra Capacity Battery is compatible with the Nextel i580, Nextel i880, Nextel ic902, Motorola ROKR Z6m, Motorola Q, Motorola Q 9h, Motorola Q9m, Motorola MOTORIZR Z6tv, Motorola KRZR K1M, Motorola MOTO W755, and W385.
