18650 Rechargeable Battery 3.7 Volt Rechargeable Battery Button Top Li Batteries for Flashlights, Headlamps

• 18650 battery size：65*18*18mm(2.56*0.7*0.7inch) it's a rechargeable battery button top.
• Voltage: 3.7 volt rechargeable battery ，the nominal voltage is between 3.6 and 3.7v. It is normal for the charging and discharging voltages to fluctuate
• 18650 battery type：button top,there is a bulge on the top of the battery. Please confirm whether your device is suitable before purchasing
• Multi-application： 18650 batteries for headlamps, flashlights, doorbells,alarm clock,toys and other necessary devices. Wake up your device at any time
• Low self-discharge battery：3.7volt li-ion battery can still maintain 80% capacity after 1 years of non-use, which can maintain the lasting performance of the battery itself and reduce the probability of battery damage，battery is partially pre-charged and ready to use out of the box. It is recommended that the battery is fully charged before use