An 18650 battery[1] or 1865 cell[2] is a cylindrical battery size (often lithium-ion battery or sodium ion battery) common in electronic devices. The batteries measure 18 mm (0.71 in) in diameter …

Nov 12, 2022 · Laptops and other electronic devices use one or more 18650’s and have recharging electronics built in. 18650’s are also used in vaping (smoking) devices. 18650s are …

The 18650 battery is a cylindrical, rechargeable lithium-ion (Li-ion) cell, named for its dimensions: 18mm in diameter and 65mm in length. Renowned for its high energy density, long cycle life, …

18650 Rechargeable Battery Flat top 3.7v Lithium Rechargeable Batteries for Headlamp, LED Flashlight, 2Pack Add to cart

Sep 16, 2025 · What is an 18650 battery? An 18650 battery is a rechargeable lithium cell that measures 18mm in diameter and 65mm in length, with a typical voltage of 3.6–3.7V and …

Aug 14, 2025 · What is an 18650 battery? This guide covers the definition, specifications, types, brands, buying tips, and applications of 18650 batteries to help you choose the right battery …

Apr 1, 2025 · Compare top 18650 battery cells by capacity, discharge rate & chemistry. Expert guide to selecting the right 18650 for high-drain, energy-dense & safety-critical applications. …