klarus EP10 Rechargeable Flashlight, High Lumens 1000 Lumens EDC Flash Light, USB C Flashlight with 2600 mah Battery, Waterproof Flashlights for Home, Camping, Emergency Use - Amazon.com
Klarus 21GT-50 INR 21700 5000mAh 3.6V Protected High-Drain 15A Lithium Ion (Li-ion) Button Top Battery