ICSTORE 18650 Lithium Battery Holder Case Mount, 3.7V Li-ion, Lipo Battery/Cell Dual/Double Parallel Slot, Storage Box kit, Socket for Circuits - Pack of 2 : Amazon.in: Industrial & Scientific
3.7V Battery Holder Box, Without Cover - Giga Ventures
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
A 3.6V 3.7V Battery 1S3P Holder Case 18650 17670 Li-ion w/PCM in output:3-4.2V 606321670221 | eBay