Power in Flux

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Type: Posts; User: Frank

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  1. Replies
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    I know. I've tried calling and emailing in the...

    I know. I've tried calling and emailing in the past with no response. Finding decent pouch cells is getting pretty hard these days.

    Sent from my SM-T380 using Tapatalk
  2. Buy good cells and use a conservative design and...

    Buy good cells and use a conservative design and they'll probably stay closer together anyway.

    Sent from my SM-T380 using Tapatalk
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    Interesting but I wish they would sell to...

    Interesting but I wish they would sell to hobbyists.

    Sent from my SM-T380 using Tapatalk
  4. You could probably bypass discharge mode with one...

    You could probably bypass discharge mode with one of the cheaper Bluetooth bms units and just run the charger through it. Your design shouldn't use so much of the battery capacity that running low...
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    Returning The Favor

    It's a facebook show featuring Mike Rowe. He just did a nice bit on Shelina who spearheaded an organization to rescue animals from California wildfires.
  6. Replies
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    How much does that motor weigh? Sent from my...

    How much does that motor weigh?

    Sent from my SM-T380 using Tapatalk
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    Curious: what will you upgrade to? Sent from...

    Curious: what will you upgrade to?

    Sent from my SM-T380 using Tapatalk
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    Before upgrading to a larger controller on my...

    Before upgrading to a larger controller on my drag bike a few years ago, one of the options I looked at was using a snowmobile clutch. You could keep a motor close to Max power with some sort of cvt....
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    More: ...

    More: https://www.wired.co.uk/article/superdielectrics-supercapacitor-electric-car-battery
  10. Replies
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    There's still a bunch of us drag racing electric...

    There's still a bunch of us drag racing electric bikes. Brushed DC series motors make tons of torque and are more cost effective than permanent magnet or AC motors. There's various controllers out...
  11. My point is that you might find a sled clutch...

    My point is that you might find a sled clutch that could work for you....

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  12. It's likely that 5K is the break speed of the...

    It's likely that 5K is the break speed of the motor i. e. speed where max power is achieved. Snowmobiles used for drag racing run a 2-step with the lower limit just below the point where the clutch...
  13. I thought Steve built that with the idea of using...

    I thought Steve built that with the idea of using the lock-up right off the bat. Does he say his old 60' times were 1.7? I must have missed it..

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    I believe they are moving forward with renewables...

    I believe they are moving forward with renewables at a rapid pace but they are so big it won't happen overnight. And charging ev's with fossil fuel generated electrons will still generate less...
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    Very neat car! So - three motors? How many...

    Very neat car!

    So - three motors? How many inverters? 400V or higher?

    It looked to me like the steering wheel might be just a tad too small in diameter, driver seemed to be struggling a bit,...
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    I too am curious about the details but one...

    I too am curious about the details but one article said they were making parts in China so that may have something to do with it. IIRC they had switched from Enerdel to Farasis on the Lightning,...
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    Energica at Texas Miile

    https://www.youtube.com/watch?v=wA2pH7uA7zA&feature=youtu.be&fbclid=IwAR3JiXdxKtDam0dgL-1XAVGLFk4UwXDGMSXX2XzlJlzAjCj1IC5qifPfhbI

    Good initial acceleration then peters out a bit on top end,...
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    The article says the top speed is 270, not that...

    The article says the top speed is 270, not that she hit that at Lake Gairdner. Killajoule ran 270 in September 2014 at the Mike Cook Shootout.

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    I'm pretty sure the 270 was at Bonneville. :) ...

    I'm pretty sure the 270 was at Bonneville. :)

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    Is this still the low voltage pack? Sounds like...

    Is this still the low voltage pack? Sounds like it...

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    With an Orion (and Torque) I know lowest cell...

    With an Orion (and Torque) I know lowest cell voltage, min pack voltage, max current, etc. It has an output that can be programmed to signal a alarm or a couple of other options using a variable...
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    Looks great! Sent from my MotoE2(4G-LTE)...

    Looks great!

    Sent from my MotoE2(4G-LTE) using Tapatalk
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    You'd be better off with a smaller motor and...

    You'd be better off with a smaller motor and bigger controller (ex. Z1k). It really depends on your goals. Also, while the tranny idea is neat, unless you're racing it's not really necessary. Then...
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    I think it depends what your goals are: a 100V...

    I think it depends what your goals are: a 100V system is adequate for "commuter" type vehicles but you will not see a single high-performance vehicle running low voltage.

    Personally, I think Luke...
  25. Thread: AXE Wiring Note

    by Frank
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    13,671

    Does this help? ...

    Does this help?

    https://evmc2.wordpress.com/2014/11/24/wiring-up-the-alltrax-axe-moar-wire/
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