Amazon.com: 2 Pcs 3.7V Rechargeable Batteries 1/2AA Lithium ion Battery icr14250 300mAh (Flat Top, 0.57 * 0.98inch, Shorter Than AA and AAA : Health & Household
AAA 3.7 Volt Lithium Ion 10440 Battery with Tabs (350 mAh)
Amazon.com: 4 Pcs ICR 10440 Rechargeable Lithium Ion Battery,3.7v Batteries 350mAh (0.39 * 1.73 inch, Shorter Than AAA Size) : Health & Household
Amazon.com: PKELL ICR18500 Rechargeable Li-Ion Batteries 3.7V 1400mah with Flat Top for Flashlight,Solar Garden Light(4pc)(They are Not AA,AAA Size Batteries) : Health & Household
10440 Rechargeable Lithium-Ion Battery | UltraPoi
Amazon.com: CBB Vapcell 10440 Rechargeable Batteries AAA Lithium Battery 3.7V 320mAh 3A Flat Top 4 Pack : Health & Household