• 18650 Rechargeable Battery Size: 65*18*18mm(2.56*0.7*0.7inch) It's a rechargeable battery BUTTON TOP
• Multi-Application: 3.7 Li batteries for headlamps, flashlights, doorbells,alarm clock,toys and other necessary devices.
• High Performance: With a large capacity of 9900mAh, 18650 rechargeable batteries can last at least 20% longer than other batteries, ideal replacement battery for used devices with high frequency
• Safety Protection: Battery Povides 6 types of protection, such as temperature protection, short circuit protection, overcharge protection to stabilize the battery
• Low Self-Discharge Battery: 18650 battery can still maintain 80% capacity after 2 years of non-use, which can maintain the lasting performance of the battery itself and reduce the probability of battery damage