Battery Case Storage Box 2 Slots x 3.7V 2-Wire Lead for 2 x 18650 Battery 5Pcs - Walmart.com
1x New 3.7v 4.4Ah 1S2P Li-ion Rechargeable Battery Pack with 2.0Pin JST-PH Plug | eBay
18650 Blue Lithium-Ion Rechargeable Battery - 3.7V 2600mAh | xUmp
Amazon.com: DORHEA 12PCS 18650 Battery Holder Bundle with Wire 18650 Battery Holder Case 3.7V, 1/2/3/4 x 3.7V Series DIY Battery Storage Boxes, 1/2/3/4 Slots Black Plastic Batteries Case for 18650 Battery : Electronics
1-Slot Li-Ion Charger w/ LCD Display + 2 x 18650 3.6 Volt 2600 mAh