The 18650 Rechargeable Lithium-Ion Battery from Watson is a 3.7V, 2600mAh Li-Ion battery that works with select flashlights, powered gimbals, and other electronic devices. Featuring overcharge and discharge circuit protection, this battery can be charged approximately 300 times without the risk of damage. Its dimensions match the Nitecore 18650 type button-top battery, making it a suitable alternative.

Small and lightweight, lithium-ion batteries can be charged or discharged at any time without developing memory effect.