3.7V AA Rechargeable 14500 Li-ion Battery - China Rechargeable Lithium Battery, Lithium Battery Pack | Made-in-China.com
4Pcs PKCELL Rechargeable Li-ion Battery AA Lithium ICR14250 1/2AA 300mah New Original 14250 3.7V Lithium Battery for Flashlight - AliExpress
Amazon.com: (2- Pack) CR-AA, AA Li-ion 3.7V Rechargeable Batteries Button top with USB Charger, Good for Flashlight Lumintop Tool AA 2.0, Klarus Mi7 : Health & Household