Based on this product's specifications, here are some alternatives and similar models
Rechargeable battery XTAR 26650 6000 mAh 3.6V Li-ion — 69 mm × 26 mm
Summary description:
XTAR 26650 is a rechargeable Li‑ion battery with nominal voltage 3.6 V and capacity 6000 mAh. Single cell dimensions: height 69 mm, diameter 26 mm. Supplied as one piece. Designed for high-capacity portable devices, flashlights, power banks and other electronics requiring 26650 cells. Handle and store away from direct heat.