1.Item: cellphone battery2. Compatible model:for iphone 4S3.Normal capacity:1430mah4.Standard Voltage: 3.8V5.Cell chemisty PCM: Li-ion battery6. Double protective IC with NTC PCB offer over-discharging, over- charging, over-current and short-circuit protection, more safeguard for using.7. Gilded and flexible connecter, better conductive properties, not easy to rust.8. Safety and stable: Hi-tech lithium-ion battery, undergoes drop test,smash test and acupuncture testto ensure no fire and explosion in breaking9.A grade li-ion battery cell,high energy environmental protection battery,durable energy conservation,long standby time and long talking time10. Guarantee time: 1 year11. Working temp.: -15 - +50C