Overview: Cell Type: Li-ion Voltage: 3.7 V Capacity: 1000m Ah Replacement for NOKIA Original Battery BL-4 U Compatible Cell Phone Models:NOKIA 3120c/5330XM/5530XM/5730XM/6212c/6600s/6600is/8800 Arte/8800 Carbon Arte/8900/E66/E75 & More Specification: Weight Approx:21.3g Size Approx:3.8 x 6.2 x 0.5