Overview: Cell Type: Li-ion Voltage: 3.7 V Capacity: 800m Ah Replacement for NOKIA Original Battery BL-4CTCompatible Cell Phone Models:NOKIA 2720f/3720/5310XM/5630XM/6600f/6700s/7205/7210c/7210s/7230/7212c/7310c/X3 & More Specification: Weight Approx:17.1g Size Approx:5.4 x 3.4 x 0.4