High Capacity 3300mAh BV-T4B Standard Battery for Microsoft Nokia Lumia 640 XL Windows Smartphone with Additional Valueable Accessory (See Picture) * Battery type: Li-ion; Voltage: 3.8V; Capacity: 3300mAh * Package includes : 3300mAh Rechargeable Li_ion Battery X 1; Folding Bracket X 1 * Compatible with: Microsoft Lumia 640 XL ( AT&T ) * Accessory only, Cell phone not included. * High Quality,100% Brand New.