Compatibility: its compatiable to all following Models: Nokia 3310, Nokia 3330, Nokia 3410, Nokia 3510, Nokia 3510i, Nokia 5510, Nokia 6650, Nokia 6800, Nokia 6810

Chemistry: Li-ion (Lithium Ion technology) delivers long lasting talk times
Ratings: 3.7 Volts 1250 mAh Capacity
Weight 0.08 kg