PowerSmart 3.6V 1500mAh Li-Polymer Battery BST-41 BST41 for Sony Ericsson Xperia Play, Sony Ericsson Xperia Play 4G, R800a, R800at, R800i, Play R800x, Z1i, SO-01B, Battery Type: Li-Polymer Voltage: 3.60V Capacity: 1500mAh Color: Black Dimension: 64.38 x 44.15 x 4.85 mm ||Rate: 5.40 Wh Product Type: Replacement Battery (Brand New) 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.