Bl-4c for nokia 6100 1. Battery model: bl-4c 2. Normal capacity: 950mah 3. Compatible model: 1202/1265/1325/1661/2228/2650/2652/3108/3500/3500c/5100/6066/6088/6100/6101/6102/6102i/6103/6125/6126/6131/6136/6170/6260/6300/6301/7200/7270/8208c/x2-00 huawei hb4a3/t1201 4. Batteries with double-protection ic and ntc pcb offer over-discharging, over-charging, over-voltage, over-current and short-circuit protection. 5. Cell chemistry pcm: li-ion battery. 6. Safe and stable: hi-tech lithium bettery undergoes drop test, smash test and puncture test to ensure, no fire and explosion in breaking. 7. Standard voltage: 3.7-4.2v 8. Battery charging time: approx 4-6 hours with universal charger, 2-4 hours for travel charger. 9. Working temp:-15 to 50, storage one year tem:-20 to 35 degree. 10. Ce, fcc, rohs certificate. 11. Supply the free sample. 12. Warranty: one year. As per your request. Pvc bag or blister packaging.