GPS battery 1)Dual IC protection 2)3.7V 1000mAh CE, ROHS 4)safe and ... .50-100pcs/box,8boxs/carton2.Offer OEM serviceAdvantage1.Double protective IC with NTC PCB offer over-discharging,over-charging,over-current ... PCB,test it whether can get through and whether the IC is working.We can check cell the capacity whether can ...