14500 Lithium-ion batteries are one of the most common rechargeable batteries in portable electronics, such as flashlights, cordless power tools, and more. AA Lithium-ion batteries are known for having one of the best energy densities, no memory effect, and a low discharge when not in use, when compared to other rechargeable battery chemistries. Lithium-ion batteries are environmentally friendly and can drastically decrease your carbon footprint. Before replacing your alkaline AA batteries with 14500 Lithium-ion batteries, double check to make sure they are compatible. At BatteryJunction, we not only offer AA Lithium-ion batteries at our everyday low price but we also have 14500 lithium-ion cells in a variety of brands, so that you can choose the perfect AA battery to suit your specific needs.