Gold Phoenix Replacement Laptop/Notebook Battery for Toshiba PA3817U-1BRS Battery 48Wh, 4400mAh Gold Phoenix laptop battery for Toshiba PA3817U-1BRS Battery type: Li-ion; Capacity: 4400mAh/48WH. Cells: 6-cell; Voltage: 10.8V. Fast shipping from USA! Brand New Replacement Battery, works as Genuine parts.