Product descriptions from the supplier High-Capacity Battery: Offers 20000mAh power for extended use. Long-Life Cycle: Designed for up to 800 cycles of recharging. Robust Construction: Built with LiCoO2 for durability and reliability. Wide Temperature Range: Operates efficiently between -20°C and 60°C. Versatile Application: Ideal for various consumer electronics needs. Built-in BMS Protection: Guards against overcharge, overdischarge, overcurrent and short circuit.