Product descriptions from the supplier High Capacity: 800mAh Ni-MH battery for extended use. CE Certified: Safe and reliable for global markets. Long Cycle Life: 800 cycles for consistent performance. Small Size: AA battery perfect for portable devices. Fast Charging: Ready to use in minutes. Low Self-Discharge: Maintains capacity well during long-time idle storage. Wide Operating Temperature: Works steadily in various ambient conditions. Eco-Friendly Formula: Cadmium-free