2-Pk 18650 (2nd Gen) Battery 3.7v-3500Mah - Miller Tech
Amazon.com: CaoDuRen Rechargeable 3.7V Li Lipo Lithium Polymer Ion Battery Pack with 2 Pin 2.0mm/1.25mm JST Connector (502030 250mAh 1.25Jst) : Health & Household
Amazon.com: LCLEBM 3.7V 3800mAh USB Rechargeable Lithium Battery for Button Top with 2 in 1 Charge Cable for Flashlights, Camera, Headlamps, Doorbells, RC Cars (2 Pack) : Electronics
HQRP 4000mAh Battery 2-Pack for 26650 IMR-26650 ICR26650 3.7V Led Flashlight - Walmart.com
Amazon.com: Qimoo 3.7V 5200mah Rechargeable Battery Pack Lithium Ion Batteries with JST-2P Connector for DIY Electronics Products, Toys, Lighting, Bluetooth Equipment… : Health & Household