Why aren't there Lithium Ion rechargeable batteries in AA and AAA sizes? - Quora
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
PN Racing Extreme Power 555mah Li-Ion 3.7V Rechargeable AAA
Amazon.com: PKCELL ICR10440 Lithium Ion Rechargeable Battery 3.7V 350mAh with USB Charger (2pc Button top +Charger)(They are not AA Size Battery) : Health & Household
Amazon.com: AAA Size 3.7V 350MAH ICR10440 Lithium Ion Rechargeable Battery (16pc Button top) : Health & Household
1.5V Rechargeable AAA AA Li-ion Battery 1200mwh 3000mwh Lithium Batteries Lot | eBay
Amazon.com: AAA Size 3.7V 350MAH ICR10440 Lithium Ion Rechargeable Battery (16pc Button top) : Health & Household