Search results

Date Relevance Most replies

  1. C

    UK gov' consultation to allow higher power ebikes and throttles

    There is an inverse relationship between how fast someone can pedal, and the likelihood of injury. If the society picks up the bill for injuries people cause to themselves, then it is perfectly reasonable to regulate to some degree things that are commonly used and that can easily cause injury.
  2. C

    Replacement BMS not playing nice

    If you unplug the battery from the charger and before you plug it into the bike, does it have voltage on the output?
  3. C

    How do u run a 350w hub at 500 or more watts(anyone who has commented on this thread please read the newest post to gain a better perspective)

    Maybe these are standby batteries out of stolen EV vehicles? The batteries were cut out to shut off all tracking and beacons in the vehicles, then they were put in crates and shipped overseas? That's my best guess. :mrgreen:
  4. C

    Voltage/current trimpot adjust

    Why not turn them and measure?
  5. C

    Any bms repairers in the uk?

    I doubt there is anyone in the whole world who repairs these. Even if it didn't have that protective varnish on it.
  6. C

    Some thoughts on the future of automotive EVs

    Some early belt designs sucked. But that's 25-30 year old news. Toyotas have always used planetary gear CVT designs in their hybrids, which is the most reliable transmission ever made judging by the fact that you won't find any complaints about them, and the number of used Toyota hybrids with...
  7. C

    Manuell switch, rated 48v used with 96v battery ok?

    That's my assumption if we are talking e-bike battery.
  8. C

    Manuell switch, rated 48v used with 96v battery ok?

    You need less than 1mm to prevent 100V DC from arching. There is absolutely no chance no way not under any condition less than 1mm gap inside that switch when it's off.
  9. C

    Is it going to be possible to put a sprocket on this motor shaft?

    Threaded flange coupling bolted to a sprocket?
  10. C

    Some thoughts on the future of automotive EVs

    You do realize that vehicle depreciation is the single best predictor of reliability and future cost to own? 🤔
  11. C

    Some thoughts on the future of automotive EVs

    More airbags? Soundproofing? Adjustable seats? Staying on the road at over 35mph? Not failing every crash test? Pretty much everything a modern car would offer. :ROFLMAO: That looks like a vehicle that would be good for groundskeepers at a corporate complex or a university campus, driving...
  12. C

    Some thoughts on the future of automotive EVs

    I don't think you looked at modern offerings recently. For $35K you can get a loaded Camry that's slightly bigger, slightly safer and gets over 50mpg both city and highway. With various fees states are putting on electric vehicles, to offset the owners not paying any gasoline taxes, I doubt a...
  13. C

    Some thoughts on the future of automotive EVs

    1% of total vehicles being EV is mass use? I don't think so. We are still about 2 decades away from any reasonable definition of mass use. As such, nobody can do any kind of research compile statistics since there is no representative sample available. Comparing statistics about new electric...
  14. C

    Some thoughts on the future of automotive EVs

    There is quite a difference between a lead-acid battery which is basically a chunk of lead in a thin plastic shell, and a car battery which is an armored solid block of a dozens of different metals, plastics and epoxies fused together.
  15. C

    Some thoughts on the future of automotive EVs

    Today is year 2023, almost 2024, and the vast majority of our "recyclables" ends up in landfills, even though great energy is expended to sort and transport it separately. All projections from the past about recycling in the future have fallen flat.
  16. C

    When to charge Lithium battery.

    To really maximize it it should be between 50.001% SOC and 49.999% SOC. :cool:
  17. C

    how to test faulty bms

    Even if you test a crappy BMS and it tests good today, it can easily fail tomorrow, because testing it doesn't stop it from being a crappy BMS. :ROFLMAO:
  18. C

    I had a lithium fire (my own fault)

    You built a battery with no fail-safes. You started charging it with a charger with no fail-safes. And then you walked away, knowing about #1 and #2 That's more like premeditated arson than an error. :ROFLMAO:
  19. C

    I had a lithium fire (my own fault)

    Very confusing read. So you set the charge voltage to a level that would overcharge and stepped away?
  20. C

    Some thoughts on the future of automotive EVs

    What are the chances that car DIY by then gets such a bad rap from all the fires that you won't be able to insure that contraption? And the house with the garage it's parked in or next to.
  21. C

    Some thoughts on the future of automotive EVs

    The year will be 2050 and they will buy a 2030 model year used gasoline car. That's my prediction. :ROFLMAO:
  22. C

    Some thoughts on the future of automotive EVs

    You had no issues during years 0 to 7. I'm sure it will be very different in year 15-25+ of ownership. The median age of a vehicle right now is 12.5 years. Low income families drive 15+ year vehicles. On average.
  23. C

    Some thoughts on the future of automotive EVs

    You have a lot of wildly specific predictions that almost certainly will not be reality in the future, but I thought this was funny. You think the same lower income families that don't mow their lawn, don't change their engine oil and drive on bald tires will maintain their old solar panel...
  24. C

    10AWG wire Vs. 14AWG wire for a Battery in a UPS

    But my application requires a maximum of 1.9% voltage drop, so that table with 2% drop is completely useless. :ROFLMAO:
  25. C

    10AWG wire Vs. 14AWG wire for a Battery in a UPS

    There is no such thing as current ratings for gauges. It's a tradeoff between cost, weight, flexibility, durability, power loss and safety. That's roughly 0.7 watts dissipated through the red and 0.7 watts through the black wire. You would not even be able to detect any heating by touch. So...
Back
Top