3.70V,1100mAh,Li-ion,Hi-quality Replacement Pocket PC Battery for Dell Axim X50, X50v, X51, X51v, This PDA battery can replace the following part numbers of Dell: 310-5964, 35h00056-00, 36485, 451-10201, HC03U, T6476, T6845 Battery Type: Lithium-ion (Li-ion) Voltage: 3.70V  Capacity: 1100mAh Rate: 4.10 Wh  No. of cell: 1 Color: Black  Weight: 29.40 g Condition: New, 1 year warranty! Please ensure the product(s) that you are going to buy fits the brand, model, part number and dimension (mentioned above) of your device.