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  1. D

    18650 pack build using plastic battery holders

    Thinking of using test tube racks. 4X10 spaces. 18mm holes, plus the bottom holes are smaller and could provide short circuit protection. https://www.indigo.com/lab_supplies/test_tube_racks/33770-plastic-test-tube-rack.html#.Vlq3UF9OLKD Epoxying two together, will have to trim the second down to...
  2. D

    Home made batteries

    I'm going to build my own battery. Using Panasonic NCR18650B's Found this test tube holder https://www.indigo.com/lab_supplies/test_tube_racks/33770-plastic-test-tube-rack.html#.Vldox19OLKD 18mm holes. Want to use 8, 4 as is but inverted onto the batteries, and 4 cut down to fit and be epoxied...
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