Overview: Cell Type: Li-ion Voltage: 3.7 V Capacity: 920m Ah Replacement for SONY ERICSSON Original Battery BST-39 Compatible Cell Phone Models:SONY ERICSSON C902c/G702/R300/T707/W380c/W508/W908/W910i/Z555i & More Specification: Weight Approx:15g Size Approx:4.4 x 3.6 x 0.5