Power in Flux

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Type: Posts; User: Stevo

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  1. Replies
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    thanks for that tutorial link... I may have to...

    thanks for that tutorial link... I may have to dive into this when I have spare time
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    That's a great deal for someone to get started.

    That's a great deal for someone to get started.
  3. That might be a very good upgrade for me that I...

    That might be a very good upgrade for me that I can use right now... if it fits my current set up without too much required modification. I am running a ME1003 and Alltrax AXE7245. If this AXE will...
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    I've been patiently waiting for an update on this...

    I've been patiently waiting for an update on this thread:cool:
    "Efficiency at the power peak was about 75% (induction motors are more efficient at parcial loads). With a magnets motor like ME1304,...
  5. Thread: EMP effect ?

    by Stevo
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    EMP effect ?

    With all the talk about N.Korea nukes... I understand an EMP weapon can take out an entire country's grid...
    but what effect would such a weapon have on Li cells? Our ev's controllers would probably...
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    Since this thread has been resurrected... Al...

    Since this thread has been resurrected... Al frames are way stiffer than steel ones. I remember when Honda introduced aluminum frames on their CR dirtbike line and the extra rigidity was a problem at...
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    Hi... the main reason I chose not to use a hub...

    Hi... the main reason I chose not to use a hub motor is all the unsprung weight of the wheel. However, as long as you change the shock with a stiffer spring and heavier oil, you should be able to...
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    I think they have an awesome concept to have...

    I think they have an awesome concept to have interchangeable battery tray chassis. They can design one stressed chassis batt tray and use it in any of the different models of vehicle they want to....
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    Thoughts on these?

    http://www.ebay.com/itm/12V-280WH-BOSTON-POWER-LITHIUM-ION-BATTERY-PACK-18650-4-7AH-POWERWALL-BATTERIES-/182681892086?hash=item2a88b074f6:g:b7kAAOSwkX1ZdLk6


    They come out to about $2.20 each.
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    Hmmmm.... In my mind, a perfect electric dual...

    Hmmmm....
    In my mind, a perfect electric dual sport would have 2 gears. One for tight technical single track thru the woods and uphill trails on loose shale and rock or mud, and then second gear...
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    Why not incorporate a clutch? A 2 or 3 speed...

    Why not incorporate a clutch? A 2 or 3 speed tranny would be fun!!
  12. You may have to fabricate one yourself... ATK...

    You may have to fabricate one yourself... ATK used to make a chain torque eliminator:7394
    Grainger sells several self adjusting tensioners. You probably will need to adapt one on top and on bottom...
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    Here is the link to his tests. Very good info...

    Here is the link to his tests. Very good info indeed! Thank you!https://www.e-cigarette-forum.com/forum/blog-entry/list-of-battery-tests.7436/
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    Hi Ian... I'll be watching your progress on this...

    Hi Ian...
    I'll be watching your progress on this build as it looks very cool indeed. My suggestion is get the motor, controller and all the electronics/lighting/wire harnessing complete before...
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    I was wondering how they would synchronize 2...

    I was wondering how they would synchronize 2 motors. The I thought if there were a jackshaft with the rear drive fixed, and 2 different sized free driving sprockets on the drive jack shaft...you...
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    very cool sidecar

    This is an older link that I just found, but I was thinking what a cool project one would be....:cool:
    http://www.thevelocityworkshop.com/Baker_Electric_Sidecar.html
  17. Thread: Tesla BMS

    by Stevo
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    THESE!! I'll wait for these!!...

    THESE!! I'll wait for these!!
    https://youtu.be/ga4L1w66AbU
  18. Thread: Tesla BMS

    by Stevo
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    These batteries must be degraded somewhat unless...

    These batteries must be degraded somewhat unless my math is wrong. Lets see:
    232 Ah / 74p =3135 mAh/cell. The 18650 is rated at 3600 mAh/cell.
    So, if I were to split up one of these modules into a...
  19. Thread: Tesla BMS

    by Stevo
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    How much are these modules selling for? What is...

    How much are these modules selling for? What is the total pack voltage for each module?
  20. Replies
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    Welcommen and good luck with your project ...

    Welcommen and good luck with your project



    Sent from my SM-G920V using Tapatalk
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    Thanks Ned... I thought I probably should add...

    Thanks Ned... I thought I probably should add another one
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    Thanks guys. I decided to put a diode in between...

    Thanks guys. I decided to put a diode in between the two in series outputs also. I put a manual power switch on the input side of one of them just because Meanwell suggested it, so I power them up...
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    I did one and am currently on my 2nd generation...

    I did one and am currently on my 2nd generation version. I'm in the early stages of planning my 3rd gen version.
    This is the motor I am leaning towards:...
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    Mean well question

    For those of you who have built your own chargers with these power supplies...I cant find the suggested start up sequence.
    I read not to power up 2 mean wells simultaneously due to in rush current....
  25. Thread: dc-dc booster

    by Stevo
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    I was thinking more along the lines of using a...

    I was thinking more along the lines of using a grid tie-in inverter, maybe a few in parallel to get the necessary power to drive the meanwells to 250 volt. Wont it be easier to boost 220 volt ac to...
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