Tenergy 30005-1 ICR 18650 2600mAh Li-Ion Battery - With Tabs
Amazon.com: MY MIRONEY 18650 Battery Holder with Switch 5-Pack 2 x 3.7V Batteries Holder Box Case with ON/Off Switch : Electronics
18650 Battery Holder Bracket 5 x 3 18.4mm Diameter for DIY Battery Pack 5 Pcs | eBay
Amazon.com: Ltvystore 18650 Battery Case Holder, 5 Pack 3 Slots x 3.7V DIY Battery Storage Box, in Parallel Black Plastic Batteries Case with Pin for 3 x 18650 : Electronics