Lithium ion battery 3.7V 10440 320mAh Manufacturer China
EBL 4-Pack 3.7V 350mAh 10440 Li-Ion Rechargeable Batteries for LED Flashlight Torch - Walmart.com
New Design 1.5V 600mwh 1100mwh USB Triple AAA 10440 Li-ion Lithium Ion Rechargeable Battery Cell with Type C USB Port - China Power Tool Battery and Tool Battery price | Made-in-China.com