Overview: Cell Type: Li-ion Voltage: 3.6 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:16.9g Size Approx:4.5 x 3.5 x 0.5