Motorola SNN5788A/SNN5788 BR91 Extended Capacity Battery - Non-Retail Packaging - White Motorola batteries keep your phone powered up when you need it most This product requires the Motorola Razr V3a V3c V3m extended capacity battery door Up to 350 to 570 minutes talk time / up to 280 to 370 hours standby time, 1480mAh Lion.