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/5250/5330XM/5apphire Arte/8800 Carbon Arte/8900/C5-03/E66/E75/X7 & More Specification: Weight Approx:21.4g Size Approx:6.2 x 3.8 x 0.4