High Power AA Lithium Batteries: Revolutionary technology makes batteries larger in capacity, longer lasting,more powerful in output,ideal for high power products.Such as Xbox, blink(some models unsuitable),digital camera.Our battery is not compatible with smoke detectors and doorbells camera Longlife AA Lithium Batteries:Rechargeable aa batteries can be charged up to 2500 times, with no memory effect and low discharge rate, saving you a lot of money. Even if the battery is out of power and the voltage is 0V, the charger can directly activate the refresh battery for charging High-tech Charging Storage Box: The stylish and beautiful box design integrates storage and charging. The lithium batteries can be placed inside when not in use,saving a lot of space,very portable.Note:Our charger & lithium battery can only be used together and are not compatible with other brands Smart LED Display: The light flashes green to indicate charging,steady light indicate fully charged. Steady red light indicates Adapter incompatible/cable damaged/temperature too high,low.Flashing red light indicates battery cannot be charged, or the charging is overcurrent, overvoltage,undervoltage Fast Charging Type C Input Design: Type C charging port is suitable for all kinds of interface input, you can charger it with PC/Plug/Power Bank/Car charger,3H fast charging requires 5V3A power supply. If the battery power is consumed too quickly, please contact us to solve the problem. Rechargeable AA Batteries Li-ion with Fast Charger, 1.5V 3600mWh High Capacity Long Lasting Recargables Lithium ion AA Battery, Double A Batteries 2500 Cycles with Charging Storage Box (Charger+8Pack)