2 Pack 3.7 Volt 18650 Rechargeable Battery 9900mAh Battery Button Top Li-ion Battery for Flashlight, Headlamp

Key item features

• High Capacity : 9900mAh for extended use and fewer charges.
• Rechargeable : Reliable lithium-ion chemistry saves money and reduces waste.
• Button Top Design : Compatible with a wide range of devices that require button-top batteries.