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li-ion battery buy 50pcs get 1 pc for free now We offerbest services, high quality, fast delivery and reasonable price for mobile phone battery 1)li-ion battery Guarantee time: 1year; 2) Cell chemisty PCM: Li-ion battery; 3)li-ion battery Working temp.: -10 - +50ÂoC; 4)li-ion batterycharging time: approx 5 hours ; 5) Double IC and NTC PCB offer over-discharging, over-charging, over-current and short-circuitprotection; 6) Safety and stable: Hi-tech lithium-ion battery, undergoes drop test, smash test and acupuncture testto ensure no fire and explosion in breaking; 7) No memory accumulation, so it provides a full charge every time; Battery KnowledgeWhat is rechargeabel battery self discharge? Primary battery or full charged secondary battery, when put aside for a period, it s capacity will decline or lose,this phenomenon calls self discharge that is electricity flee away.It is decided by the inner electro-chemistry system, similar to water leakage from pond or reservoir. What is the ambient temperature affects the battery performance? Low temperatures (e.g. -15oC) will obviously reduce Ni-Cd and Ni-MH battery discharge rate. At -20oC electrolyte is at its freezing point, charge speed will greatly slow down. At low temperature (under -15oC) charge will raise the internal gas pressure and probably unseal the safety vent. Ambient temperature of 5oC to 30oC is the best range to get effective charge. Generally with temperature rising charge efficiency will become higher. But when the temperature rises to 45oC or higher, the materials performance in the battery will be degenerated and battery service life will be shorten greatly. How can rechargeable batteries be connected? The rating for rechargeable battery NEW!! Battery Chemistry F.A.Q - Here we discuss different battery designs currently used, some of the chemistry involved, and advantages and disadvantages of each design. We have also included some useful definitions and a list of parameters to guide you in matching your battery requirements to a specific battery design. For more information about li-ion battery, please free to contact us!