Echargeable Micro USB Port 1.5V 350 mAh AAA High Capacity Li-ion 10440 Battery Rechargeable Lithium Battery - China Power Tool Battery and Tool Battery price | Made-in-China.com
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: PKCELL ICR10440 Lithium Ion Rechargeable Battery 3.7V 350mAh with USB Charger (2pc Button top +Charger)(They are not AA Size Battery) : Health & Household
Batteries (10440 size for 5/8 hoops) - 4-Pack with Case, HyperionHoop.com
Spare 10440 Cell Battery For Reylight / Peanut Beast Only!
Source Guangdong 3.7V 300mAh ICR 10440 lithium ion rechargeable li ion battery for remote control car on m.alibaba.com