3.7V Rechargeable Battery 9900mAh, 1 Battery = 20 Disposable Batteries (4 Pcs/Set)

• The 3.7V long-life rechargeable battery supports stable output voltage and effectively prevents device damage.
• It is the perfect replacement battery for high frequency use devices and better help you to start your device quickly.

• 【High Performance】 9900mAh large capacity rechargeable battery which supports stable power for your devices and effectively prevents damage of the devices, such a perfect replacement battery for used devices with high frequency

• 【Multiple Protections】This 3.7v 18650 battery is without any memory effect and provide multiple protections,including short circuit, overcharge, and overcurrent protection. Prefectly make the battery to be more stable and safe to protect your devices

• 【Rechargeable Design】Light weight, large capacity, small size, very portable, to avoid frequent replacement of batteries causing damage to the environment

【Wide Compatibility】The long-lasting 3.7v rechargeable battery is compatible with versatile devices, such as headlamps, flashlights, pathlights, garden lights, doorbells, small fans, etc. It's super convenient for home use and outdoor use. NOTE: Please fully charge the products before use

• 【Dimension】Product size: 67*18*18mm(2.64*0.71*0.71inch). NOTE: This is BUTTON TOP battery, please confirm the battery size and battery type before purchase