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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
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2*18650 Battery Box 18650 Battery Holder 18650 Battery Case With ON/OFF Switch With DC Series Connection 2* 3.7V
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Amazon.com: 3S 18650 Battery Holder Case Box for 3X 18650 12V Li-Ion with 6" Wire Leads by Envistia Mall : Electronics
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Amazon.com: 2S 18650 Battery Holder Case Box with 6" Wire Leads for 2X 18650 (8V) Li-Ion Batteries by Envistia Mall : Electronics
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k014's Parametric 18650 Battery Holder (opensource) by k014 | Download free STL model | Printables.com
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