Amazon.com: SDTC Tech 8-Pack 18650 Battery Holder with Wire Leads 1/2/3/4 x 3.7V Series Circuit Black Plastic Battery Case Kit (2 Per Size) : Electronics
DIY Plastic 18650 Battery Box Storage Case 1 2 3 4 AA 18650 Power Bank Cases Battery Holder Container 1X 2X 3X 4X With Wire Lead - AliExpress
Amazon.com: FMHXG 3.7V 18650 Battery Holder 3PCS Single Slot 18650 Battery Case Box with Extend Button Switch Wire Leads for Arduino Project Electronic Circuit, Battery Storage Box : Electronics
4 x 18650 Battery Holder w/ Leads
Single 18650 Battery Holder with Wire Leads
1 x 18650 Battery Holder with 6" Leads
Amazon.com: 2S 18650 Battery Holder Case Box with 6" Wire Leads for 2X 18650 (8V) Li-Ion Batteries by Envistia Mall : Electronics
Amazon.com: SDTC Tech 2-Pack 3.7V 18650 Battery Holder with Extend Button Switch Wire Leads Single Slot Battery Case Box for Arduino Project Electronic Circuit : Electronics