1 NiMH Rechargeable Button battery 2 3.6V-40mAh 3 CE,UL,RoHS,REACH 4 ... .5*5.2mm5Standard Charge Time15hours6Rapid Charge Time1.2hours Features:Super high capacity, Low internal resistance,Excellent operating output,Long cycle life ... Equipment,Communication Equipment,Wireless Phone and etc. NiMH Rechargeable Button Battery