Amazon.com: JcaKes Batteries ICR Rechargeable Batteries High Capacity 3.7V 4000mAh Li-ion Battery, 1200 Cycles Longer Life Button Down for Solar Lantern Battery, 6 Pieces : Health & Household
UltraFire BRC 18650 4000mAh 3.7V Li-ion With PCB Battery (2-pack)
Amazon.com: DAUZ Rechargeable Battery,3.7V Lithium Battery,Li-ion Rechargeable Batteries,4000mAh Large Capacity Batteries Long Life Button Top Battery for Flashlights/Drone/Headlamps/RC Cars(2 Pack) : Health & Household
2Pcs 3.7V 4000 mAh 18650 Li-ion battery Rechargeable Cell Battery For Power Bank GPS iPOD Tablet Torch Toys DIY
UltraFire BRC 18650 4000mAh 3.7V Li-ion With PCB Battery (2-pack)