... capacity: 2500mah4.Standard Voltage: 3.7V5.Cell chemisty PCM: Li-ion battery6.Offer over-discharging, over- charging, over-current and ... not easy to rust.8. Safety and stable: Hi-tech lithium-ion battery, undergoes drop test, smash test and acupuncture test ensure ... no fire and explosion in breaking9.A grade li-ion battery cell,high energy environmental protection battery,durable energy ...