never seen a "formula 26650" or a "microvast" before

formula brand 26650

http://www.ebay.com/itm/E33O-3-7v-26650-5800mAh-FormulaD-Rechargeable-Battery-/121187896175?pt=US_Flashlights&hash=item1c375c8b6f

microvast

http://www.ebay.com/itm/1pcs-26650-Lithium-Li-ion-3-7V-4000mAh-Rechargeable-Torch-Battery-Real-Capacity-/320936586728?pt=US_Rechargeable_Batteries&hash=item4ab94fade8

LOL @ 5800 mA, i’m guessing its the next generation of ultrafire