EBL 4 Pack 26650 Battery 5000mAh 3.7V Lithium-ion Rechargeable Batteries for LED Flashlight Torch Camera - Newegg.com
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