26650 batteries, also known as 1/3 AAA batteries, are rechargeable lithium-ion cells. A 26650 battery is able to generate high voltages while also being safe and efficient, making them ideal batteries for high-powered LED flashlights. Available as both protected and unprotected, 26650 batteries are the perfect companion for high drain devices and are produced by some of the most trusted lithium-ion battery companies. We also carry a variety of battery chargers compatible with 26650 batteries. At BatteryJunction, we pride ourselves on our everyday low price and diverse range of products.