Amazon.com: ICR18500 Battery 3.7V 1400mah Li-Ion Rechargeable with Flat Top 6PC(They are not 1865mm Batteries Also Not AA Size Battery) : Health & Household
4PCS Flat-Top 18650 Battery 3200mAh 3.7V and USB battery charger batteries Li-ion Battery for Handheld Flashlight Headlight
Imren 18650 2800mah 35A (GREEN/FLAT) (NOW 2 PCS)
Battery, button or flat top
Nitecore Batteries: High Performance, Capacity And Quality
PKCELL Flat Top 18650 3.7V 3350mAh Rechargeable Li-Ion Battery