Ultra-high Capacity and 1.5v Voltage Output: DELGEO rechargeable lithium aa batteries with a high capacity of 3600mWh and higher energy density,which allows for a high number of charge/discharge cycles and a long lifespan.Constant output of 1.5V for the entire process until the power is completely depleted, keeping your device in top condition at all times. 2000 Times Long Cycle Life: With no memory effect and a very low self-discharge rate, our double a rechargeable lithium batteries have more than 2000 rechargeable cycles, which can save you a lot of money.Overall, rechargeable Lithium AA batteries are a convenient power source,providing a reliable and long-lasting energy supply for everyday use. Integrated Charging and Storage: With 8 independent charging slots, the lithium battery charger adopts a magnetic design, allowing the battery charging and storage as one, making the battery storage and carrying more convenient, supporting 1-8 AA lithium batteries in any combinat