This Acebeam battery is a 4000mAh button top rechargeable Li-ion 21700 battery. The battery can be directly recharged using a USB-C charging cable which is included with this battery. This battery is compatible with wide range of 21700 torches.

Specifications:

• Battery Size: 21700
• Battery Chemistry: IMR Li-Ion
• Nominal Voltage: 3.6V
• Nominal Capacity: 4000mAh
• Nominal Watt Hours: 14.4wh
• Weight: 73g

Li-ion notes: All lithium ion batteries have a risk of fire and/or explosion, handle batteries with care, ensuring not to overcharge or over discharge, even if the battery contains a protection circuit. If battery is visibly damaged, stop use immediately and dispose of appropriately (Li-ion batteries pose a serious fire risk if thrown into household waste). If a battery is not to be used for over two weeks, store partially charged (30-50%) for maximum capacity retention.