A good choice when you use AA battery-powered devices and want to replace regular batteries with a rechargeable one. This lithium-ion battery has a higher capacity than standard batteries, making it an excellent choice for various lamps, lights, and other devices. Fenix batteries are safe and reliable: the battery itself is protected against overcharging, deep discharge, short-circuiting, and impacts. - Side charging indicator LED - Steel cylinder structure protects against impacts - Package includes one battery - Charging cable not included Note! Do not charge this battery with a separate charger or through the devices charging port; always use the batterys own USB-C port. Note! Do not use this battery in devices compatible only with alkaline batteries. - Do not expose the battery to excessive heat or dispose of it in water. - Recharge the battery every three months or sooner to maintain optimal performance. - Keep the battery out of reach of children. Seek immediate medical a