18650 Lithium Rechargeable Battery 4400mah 7.4v With Thread Head 2 Strings 2 Parallel Fishing Lighting Toy Flashlight Tian Shape - Button Cell Batteries - AliExpress
Factory Supply Rechargeable Cylindrical 18650 Batteries for Medical Equipment UFX 18650-2S2P 4400mAh 7.4V Li-Ion Battery
Amazon.com: Qimoo 3.7V 4400mah-16.28Wh Rechargeable Battery Pack Lithium Ion Batteries with PH2.0mm Connector for DIY Electronics Products, Toys, Lighting, Bluetooth Equipment : Health & Household
Amazon.com: 1Pcs 18650 3.7v 4400mAh 1S2P Li ion Rechargeable Battery Pack with 2.0Pin JST-PH Connector 16.28Wh/4.4A, Blue, 6.6 x 1.8 cm (19.28Wh/4.4A) : Health & Household