Generic Rechargerable Lithium-ion Battery Replacement for Samsung Galaxy (S3 i9300) Item: mobile phone battery Standard Voltage: 3.7V5.Type: Li-ion battery Working temp.: -15 - +50C IC with NTC PCB offer over-discharging, over- charging, over-current and short-circuit protection, more safeguard for using, long standby time, long talking. Safety and stable: Hi-tech lithium-ion battery, undergoes drop test, smash test and acupuncture test ensure no fire and explosion in breaking