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  1. C

    Rad Power Batteries are now UL certified and fully potted

    Paul, you gotta step up your past thread on potting compounds! We gotta catch up :D For commercial use I feel like the potting is the right call. Do we know what compound they're using for this?
  2. C

    First choice of POBs and thieves

    I have a degree in that
  3. C

    Toyota AWD rear E-drive unit, Q211-2FM

    Per the Open Inverter wiki, maybe a Gen3 Prius inverter? Those can be Lebowski brained and fully controlled. https://openinverter.org/wiki/Toyota_Prius_Gen3_Board
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    Will this bike break if converted to ebike?

    Hey, you've probably heard this before Steve, but thanks for doing that for others.
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    Should I even Bother?- Question about used batteries and resistances.

    You weren't kidding Dui Ni, the opus can't test jack! All these cells were fully charged more than a year ago and shoved into a basement- they're all testing between 51-55 miliohm in resistance and most have even kept their charge at over 4.1v. I've now begun discharging them down to 3.6...
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    Should I even Bother?- Question about used batteries and resistances.

    So, got the tester and began messing with it. First round of cells checked were the Samsung SDI -28As.
  7. C

    More greed from Auto manufacturers

    Huh, I never knew about PlugInSupply. Suck's that they're gone. Yeah I too am hoping that Deere gets their comeuppance, but to be frank the future is pointing towards the full death of family farms outside of smaller co-ops and specialty items. Just not profitable enough otherwise, which is only...
  8. C

    Where should I buy a bike wheel?

    Thanks amber. Just rim and spokes. So far- typical bike duty so double-walled aluminum or alloy with eyeletted nipple holes. Any good manufacturers?
  9. C

    Where should I buy a bike wheel?

    I need a new wheel for my first hub motor build, but the local bike shop near me didn't have any spares or used wheels in stock that could fit my bike. Does anyone here have a preferred manufacturer for a basic 29 x 2.10 sized wheel with rim brakes? I'm trying to support better companies than...
  10. C

    jonescg's NEW electric racebike BUILD thread!

    How are you bonding the nickel strip to the copper? I thought the sandwich method was using the resistance in the steel to hold the copper directly to the cell. EDIT: Nevermind! I re-read the portion about the copper tape. Very interesting...
  11. C

    Will this bike break if converted to ebike?

    A front hub motor would look very similar to an old fashioned drum brake, and again depending on controller would also give you that option of braking via regen off the motor. That to me, adds a bit of a "stealth" aspect. Chalo pointed out earlier that the bottom bracket for these isn't...
  12. C

    Fun and cheap EV racing series open to everyone

    This is really cool! Also your website is a blast from the past, real Web 1.0 stuff.
  13. C

    Will this bike break if converted to ebike?

    Depending on what you're willing to spend (say, if you used an ESC to run a small hub motor) you could brake using regen. If you seriously doubt you'll be going anywhere fast, that could be a great option and keep you from having to fabricate something.
  14. C

    VanMoof bankrupt

    To add onto that, you also seem to have to research heavily the eBike in general, because one with "available" parts doesn't necessarily mean they're easily found and sourced. I learned that with my free Sondor's THIN; it has an 80mm dropout and runs 28" in tires, really strange combinations...
  15. C

    Wind and Solar vs Coal, Gasoline, Nuclear

    Hillhater and Ian are proving my point, that there's groups of people there's no purpose to speak or talk to outside of "We're doing this now, deal with it" when it comes to serious issues because they just refuse to even accept reality; I before have watched hill twist himself into a pretzel...
  16. C

    PaulD's Experiments with Endothermic Potting Compounds

    It's probably an additive affect; I can't remember the name of it, but there's a specific term for like, when roadies would tape down connections and wiring and find that two parallel lengths of tape with a slight overlap hold better than two on top of each other, or are parallel and don't...
  17. C

    Wind and Solar vs Coal, Gasoline, Nuclear

    You're quoting right wing propaganda at me word for word, and you're not an American so you don't really know what they're doing now. Can't get snakes from chicken eggs is the current alt-right narrative; it's all emotion. You can't reason with these people because they refuse to accept reason...
  18. C

    Peltzman effect

    You could just be like "I just hate wearing one" and everyone would just shrug about it. No need to spend an hour typing to try and justify your decision, because at the end of the day you're an adult and you're free to make your own choices. Now, I'll fully proclaim my feelings on them- but you...
  19. C

    Peltzman effect

    Data you haven't proven. Meanwhile LeMone and Burke's Medical-Surgical Nursing has specific things to say about head injuries, and I dig out my paramdedicine texts I can get deep in the weeds about it.
  20. C

    Peltzman effect

    "Low information folks" jesus lad, talking down to someone never looks good. Look, you can refuse to wear a helmet for whatever reason you can justify (I frequently don't when I should, because my georgious fabio hair demands freedom in the wind) but the fact is they prevent bad injuries from...
  21. C

    Wind and Solar vs Coal, Gasoline, Nuclear

    I personally, have hit a point where the instant I hear classic comments like that I refuse to listen to the other person and rapidly start mocking them- they'll do it particularly heavily with anything renewable, if it's an EV or solar or anything. It's really just a defense mechanism against...
  22. C

    LK-99 -- Room Temperature Super Conductor

    Lot's of "Guarded Optimism" so far, but it doesn't help that the authors have had some poor behaviors in the past about submitting papers. It's not this page from Science (maybe natural science?) but one of the groups detailed why the use of lead is pretty unusual on an atomic scale for...
  23. C

    Peltzman effect

    Deflecting from "Helmets are actually bad" to "damn cars" again?
  24. C

    Peltzman effect

    I have entire sections of chapters in my nursing and paramedicine textbooks dedicated to what head and brain injuries to expect with children who fall or are struck without wearing proper helmets. Hell, i've even had a child struck by a baseball when he took his helmet off for a practice game...
  25. C

    Should I even Bother?- Question about used batteries and resistances.

    I'm finding several data sheets of the ANT saying it only balances at 60mA, like this one here. Did they change their balancing current? Also I'm not immediately seeing at what voltage the BMS begins automatic balancing.
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