cellphone batteryBL-4CT: 1)Capacity: 950mAH or depends on customer's reqirement; 2)Voltage:3.7v 3)Talk time:210minuts 4)Standby time:160hours 5) Life cycle: at least 500 times 6)Battery type:lithium Ion 7)Guarantee time:1year 8)Weight:12grams 9) Size:4.8*34.1*53.8mm 10) Compatible withNOKIA :5310/6301/6600F/6600 Slide/7310s/7210 11) Grade A Li-ion battery cell: aluminum shell core and double protection IC 12) Environment protection certification High quality, competitive price, fast delivery, best service. Warmly welcome to contact us.