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
18650 Blue Lithium-Ion Rechargeable Battery - 3.7V 2600mAh | xUmp
3.7V Rechargeable Lithium ion Battery LP18650A+ 3500mAh With PCM and JST XHP-2 Connector
100% New Original NCR18650B 3.7 v 3400mah 18650 Lithium Rechargeable Battery For Flashlight batteries|rechargeable battery|battery forbattery rechargeable - AliExpress
Lithium Ion Polymer Battery - 3.7V 500mAh | TinyCircuits.com