3.7V 2600MAH USB RECHARGEABLE 18650 BATTERY LI-ION 5.2A & USB CHARGER – www.nightprovision.com
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
3pieces 3.7V 18650 2600Mah 9.62Wh Lithium Battery With PCB And JST Con – BATTERYINT