• 【Button Top Size】67*18*18mm(2.63*0.7*0.7inch). NOTE: Please confirm whether the battery size and battery type before purchase
• 【Wide Compatibility】18650 rechargeable battery is compatible with versatile devices, such as headlamps, flashlights, doorbells,cameras, mini fans,toys and other electronic devices.Helps you quickly wake up your devices at any time
• 【High Performance】Long lasting 9900mAh battery has no memory effect. Full charge and discharge cycle over 1000 times.With no need to replace batteries frequently, you can enjoy a longer usage experience and easily meet the needs of your device
• 【Safety Protection】18650 battery has built-in multiple protection functions, such as under-voltage protection, over-voltage protection, over-current protection, over-temperature protection, short-circuit protection, and anti-reverse connection protection to stabilize the battery, so you can use it without any worries
• 【Warm tips】Please fully charge the battery after receiving the BATTERY, when the battery is too low, please charge it in time, which will help to extend the number of times the battery is used