Geiger Marsden Brand Laptop Battery - Replaces Toshiba PA3817U-1BRS Battery PA3817U PA3634U | Part Number: PA3817U-1BAS - Premium Grade "A" Cells with Precision German Engineering Capacity : 6 Cells | ~ 5200mAh Estimated Battery Life : Battery life will vary based on model configuration. Output Voltage : 10.8 V Color : Black; Approx Weight : 0.72 lb ; Dimensions (Approx.) : 8.07"(W) x 2.09''(H) x 0.83''(D) Main Model#: PA3817U-1BRS