What is 18650 lithium battery?

18650 battery：18 means a diameter of 18mm, 65 means a length of 65mm, and 0 means a cylindrical battery. 18650 means that the diameter is 18 mm and the length is 65 mm.

Nitecore NL188 Rechargeable 3200mAh 18650 Battery

Beginner's guide to 18650 battery with easy-to-understand illustration - SkyGenius Online

Ultimate Lithium Cells: 18650, 26650, 32650

The Replacement Li-ion Battery 18650 is a versatile power source that can be used with both the Barebones Beacon Lantern and Vintage Flashlight. With this battery, you can easily swap out the old one and continue using your product without interruption. The battery is rechargeable and can be charged directly through your product's USB port, making it a convenient option for on-the-go use.

Barebones 18650 Li-ion Battery

18650 Lithium Battery - High Quality & with China Factory Price

UltraLast Lithium Ion 18650 3.7 V 2600 mAh Rechargeable Battery UL1865-26-1P 1 pk - Ace Hardware

18650 LITHIUM ION RECHARGEABLE BATTERIES (2-PACK) – ILLUMAGEAR

18650 2000mAh Low Temperature Lithium Batteries

UltraFire 3400mAh 3.7V 18650 USB Rechargeable Lithium Battery with Pro

Buy Rechargeable 18650 Battery online, Lithium Ion 3.7 V