About this item

Unique USB Charging Design AA Lithium Batteries -- Unlike traditional rechargeable batteries that require a charger, the SPYONG aa battery rechargeable uses USB charging method and can be charged anywhere there is a USB port for devices, such as computers, wall sockets, mobile power, cars and other devices with a 4-in-1 adapter. Type C adapter can charge 4 batteries at the same time, very convenient and fast.
1500+ Times Cycle, Long Battery Life and Low Self-Discharge -- SPYONG lithium ion aa batteries with type-c charging design, can be recycled, a usb rechargeable batteries can replace more than 1500 alkaline disposable batteries, reduce the waste and money expenditure, reduce the pollution of our living environment.
High-Density Energy-Gathering Formula -- SPYONG's new generation of lithium ion rechargeable batteries adopts a high-density energy-gathering formula, which deeply releases stronger endurance and avoids overheating, short circuits, etc. It is continuously strong, has stable performance, ultra-low self-discharge, and has a long standby time. More than 1 year.Our modern lithium ion chemistry works just like the battery in your phone or laptop so you never have to deal with leaking batteries.
40-Minute Fast Charging, Built-in LED Indicator -- SPYONG aa lithium batteries charging speed than the traditional lithium batteries aa faster than 10 times more, 5 minutes to charge 20%, 30-40 minutes can be fully charged, than nickel-metal hydride rechargeable batteries need to be fully charged in 3 hours to be much faster, charging the LED indicator light blinking, fully charged stop blinking,No more batteries ruining expensive electronic devices!
1.5V Constant Voltage Large Capacity -- AA large capacity battery rechargeable, embedded with innovative technology, outputs 1.5v voltage from 100% to 0% capacitance, providing constant voltage and optimal performance even under very heavy loads, every section The battery capacity is 3450 mWh, for high power demand devices including insulin pumps, flashlights, toys, mice, microphones, and other wireless devices.