SIKER 3.8V T4800E Battery For Samsung Galaxy Tab Pro 8.4" SM-T325 T320 T321 T4800K--12 Months Warranty Battery Type: Li-ion, Capacity: 18.24WH/4800mAh; Voltage: 3.8V. 100% New Manufacturer. To 500 charging cycles during the lifetime of the battery. Features 100% Brand Replacement New battery , with 1 year warranty