Cell phone battery BL-5K: 1)Capacity:1050mAH or depends on customer's reqirement; 2)Voltage:3.7v 3)Talk time:210minuts 4)Standby time:180hours 5) Life cycle: at least 500 times 6)Battery type:lithium Ion 7)Guarantee time:1year 8)Weight:12grams 9) Size:same as the original one 10) Compatible with NOKIA :N85 High quality, competitive price, fast delivery, best service. Warmly welcome to contact us.