... .7V charging limited voltage4.2V Working temp-15 +50 DescriptionStandard battery Build in/outBuild in Capacity800MAH,125 0MAH,1650MAH ICDual ic ... memory effect cell phone battery6. Long cycle life cll phone battery7. Fast charge capacity cell phone battery Warning1) Use original or reliable ... with conductors, such as keys, coins,etc.6) Keep the battery in a cool dry surrounding if it's standby. Other ...