An 18650 battery or 1865 cell is a cylindrical lithium-ion battery common in electronic devices. The batteries measure 18 mm (0.71 in) in diameter by 65 mm (2.56 in) in length, giving them the name 18650. The battery comes in many nominal voltages depending on the specific chemistry used.
Here is an 18650 battery next to AA, AAA, and CR123A batteries. Specifications. 18650 batteries can be charged with a compatible smart charger, while some feature a convenient Micro-USB or USB-C port. Replacement Sizes. 168A, 18650, 19670, Protected 18650, Unprotected 18650.
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Universal 18650 Charger Battery Set, 2 Packs of 3.7 V 3400mAh high Capacity Batteries for headlamps, LED Torches, Cameras, doorbells, Toys and More. 4.2 out of 5 stars 238
In this guide, we use some analogies to help you understand basics of 18650 lithium battery. What does 18650 mean, how long do 18650 battery last or hold charge, what to look out for when swapping out the battery, and what''s difference between protected and unprotected cells.
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What is a 18650; protected versus unprotected cells; best 18650 battery, charger and flashlight; and top picks for best 18650 battery.
The 18650 battery is a type of rechargeable lithium-ion battery that is cylindrical in shape. It is named after its dimensions, with the first two numbers representing its diameter in millimeters and the second two numbers representing its length in millimeters.
Universal 18650 Charger Battery Set, 2 Packs of 3.7 V 3400mAh high Capacity Batteries for headlamps, LED Torches, Cameras, doorbells, Toys and More.