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  1. adriftatsea

    Main Contactor powered by DC-DC Converter ?

    Hi. I'm building another 72V AC powered ATV/UTV thing using Nissan Leaf packs and would like to avoid using a 12V battery. Some setups I've seen use a DC-DC Converter with a switchable 'enable' wire (Sevcon's DC-DC, some Delta-Q chargers, etc) that will turn on the DC-DC converter when pack...
  2. adriftatsea

    Your ideal way to 'park' your bike at home...

    I'm in the process of designing a 'garage/shed' just for my ebikes and lithium batteries used for solar. Basically something that can't burn down, has overhead reeled connections to charger(s), wall mounted 'emergency stop' buttons, easy to view charge status displays, and some fire...
  3. adriftatsea

    Disassembled Nissan Leaf battery - reeks of acetone...

    Hi. So I just opened up a 2011 Nissan Leaf battery. Once the gasket was broken and the case opened, the entire area smelled strongly of acetone. A cursory glance of Google (while waiting to drop dead of inhalation) shows this may be part of the electrolyte (ethyl acetate ... or acetone)...
  4. adriftatsea

    BMW Mid Drive e-bike: Heisenberg XF1

    http://www.hnf-heisenberg.com/index.php/heisenberg-design-xf1.html/ Bosch Mid drive integrated into swingarm to balance weight a VPP'ish pivot belt drive 400wh pack Magura MT7 hydro brakes Rohloff Speedhub Rockshox Pike fork Pretty dope.
  5. adriftatsea

    GNG - Overheating and such. How hot is too hot?

    Today my GNG '60V chain' kit overheated mid commute and started cutting out. It was ~95*F (35*C) ambient and when I pulled into the office garage I broke out the IR thermometer and it read 170*F (76*C) on the outside of the motor casing - 120F (48*C) on the outside controller casing. Motor...
  6. adriftatsea

    'Single Pivot' rear suspension, mid drives, and chain drop..

    I'm considering purchasing an older Santa Cruz Superlight which is a 'single pivot' rear suspension design. In another thread [1], the merits of Horst Link and VPP were discussed and that it keeps chain length similar throughout suspension travel. But for those of us who aren't going to huck...
  7. adriftatsea

    'Throttle protect' - How does it feel when it kicks in?

    Howdy. When a Lyen/Infenion EB312 (12fet) controller goes into throttle failsafe ... should it just freewheel to a stop or does it attempt to stop the motor (like regen)? I'm puzzled since my controller seems to lock the motor (HT3540 hub) when throttle is applied. Attempts to flash the...
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