•2000mAh high-capacity replacement rechargeable battery •Convenient to use and replace one-time-use battery to protect the environment •Compatible with flashlights, electronic digital products, children's toys and more •At 0.2°C and 25°C, the li-ion battery can be charged over 300 times, the battery capacity of not less than 80% of the rated capacity •Built-in PCM with overcharge, over-discharge, overcurrent, and short circuit protection •Can be charged or discharged at any time, convenient to use Specifications: • Rated Voltage: 3.7V • Rated Capacity: 2000mAh • Charging Voltage:4.2V±0.03V • Charging Mode: CC/CV • Charging Current: ≤1.5A • Standard Charging Current: 520mA to 3.0V •Discharge Current: 2.6A Max. to 3.0V • Discharge Cut-off Voltage: 3.0V or 2.75V •Internal Resistance: ≤ 180m Ω (new battery AC 1K Hz) Note: •The 18500 battery is flat-top, please confirm whether your device can use our battery. Package included: •1 x 2000mAh 18650 Li-ion Rechargeable Battery with Flat Top