Amazon.com: 7.4V 2600mAh 2 Cell Lithium ion 18650 19.24Wh Rechange Battery Pack with 2 Pin MTA-100 Connectors : Health & Household
Amazon.com: DULEX 3.7V Lithium ion Rechargeable Batteries Charger for LED Flashlights, Toys, Doorbells, Handheld Mini Fan, Headlamps and Other Household Devices. : Electronics