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Build a Power Bank in $2: 7 Steps (with Pictures)

Posted by jpluimers on 2019/02/12

Cool: [WayBackBuild a Power Bank in $2: 7 Steps (with Pictures)

Via:

TL;DR:

  1. salvage 18650 batteries from laptop battery packs
  2. test to separate good ones from bad ones
  3. assemble together the good ones
    1. put them in a holders
    2. solder plusses to plusses and minuses to minuses
  4. add charger electronics
  5. test
  6. put acrylic plate on front/back

Stuff you need:

  • battery tester: https://www.amazon.com/gp/product/B01EV4RMX8
  • charger electronics: https://www.amazon.com/gp/product/B01N02QGLS
  • holders (clicks together in sets of 3 batteries): https://www.amazon.com/gp/product/B0722RPSF1
  • acrylic sheet: https://www.amazon.com/gp/product/B004DYW31I

–jeroen

https://www.amazon.com/gp/product/B01EV4RMX8

 

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