3.7v 2200mAh Capacity Rechargeable 18650 Battery [CCS-5004] - $10.00 : Canada Cable Shop -- Cable Link, All You Need For Electronic, Mobile and Computer Accessories
High Quality Li-ion 18650 3.7V 2200mAh battery pack with PCB
3.7V 18650 2200mAh Lithium-ion battery Exporter
3 x 18650 Battery Holder - 11.1V Battery Pack - BC Robotics