MOTOROLA OEM BT90 EXTENDED BATTERY FOR Q9c Q9h
Stay in touch longer by getting battery power with a Lithium Ion Battery  Uses the latest Lithium Ion battery technology giving you the best performance possible compared to other battery technologies.  Integrated microchip prevents overcharging & lengthens battery life.  Brand: OEM / Nextel  OEM Part #: BT90 / SNN5759 / SNN5759A  Voltage: 3.7V  The battery operation time depends on conditions such as: Transmitting power level, Signal (distance between the phone and the base station), and Network parameters defined by the operator.  Original Battery Back Door does not fit with this battery.  Accessory ONLY. Phone not included.  Compatible with:  Motorola / Nextel i580 i880 / i885