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  1. rwaudio

    200km Trek build with custom aluninum battery box

    It's finally done so I figured I'd show off the results. The bike is a Trek DS8.6 which is a great platform for a cruiser/commuter. Motor is a Bafang 750w mid drive kit Battery is a custom 18650 pack 14S13P using Samsung 2.6Ah cells (1.75kwh) Battery box is a custom aluminum triangle to hold...
  2. rwaudio

    Simple method of punching holes in A123 20Ah tabs

    I've tried a bunch of different methods of punching clean properly located holes in A123 tabs and nothing was working as smooth and efficient as I would have liked. Drilling makes very poor quality holes, hand held metal punches make better but still poor quality holes and are very tough to get...
  3. rwaudio

    My take on the DC/DC converter type charger

    Ever since I started my Porsche 944 conversion I've been working on an isolated DC/DC converter type charger that would allow me to charge/balance my LiFePO4 cells. This charger may never get used at full power because there are simply better more efficient options now that didn't exist when I...
  4. rwaudio

    Cell Log 8 Breakout Module

    I don't post here very often, but I'm a regular over at diyelectriccar.com (same username) as well as documenting my EV conversion at http://electricporsche.ca/ it was suggested that I post some info here about a Cell Log 8 breakout board that I'm working on. It's not done and I'm not here to...
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