Search results

Date Relevance Most replies

  1. R

    Motorcycle class Hub Motor

    did they put the rim on the motor? ... now the spokes are crossed.... :) it looks like there is not much space for the brakedisc and the calipper... how much is the space from the disc to the motor? 30mm? or what kind of calipper do you use? and what voltage will go with this motor??
  2. R

    Thread for new battery breakthrough PR releases

    i read about LiNiO2...it can provide lots of power, but it is the unsafest chemestry of all Li-chemestrys... :?
  3. R

    whats about KOKAM??

    who do you talked to?? a reseller in the us or someone directly in korea? the quote me a price of 120$ for the 40Ah cell; that makes: 120$ / (40Ah+3,7V) = 0,8$ per Wh... and that was just 300cells... maybe you mean 2$ per Ah? that would be a good deal... 2$ per Wh is just insane...
  4. R

    whats about KOKAM??

    KOKAMS chemistry is: LiNiCoMnO2 this chemistry is knowen as the best compromise(of power, safety and energy density) of all other Li-chemistries... it is the safest beside LiFePO...
  5. R

    how to understand the sky energy specs?

    so, they garantee the cycle life of 2000cycles just for the 0,3CA discharge? and what is the nominal voltage of the cells? is it 3,2V or 3,4V?? in the specs stands 3,4V, is that correct?
  6. R

    how to understand the sky energy specs?

    i am a bit confused: the specs say, that the cells can take 4CA continuous e.g. the SE-40Ah cell: http://www.evcomponents.com/ProductDetails.asp?ProductCode=SE40AHA in the specs stands 4CA continuous and in clamps 20S...what does this 20S means? 20seconds? that not continuous for my...
  7. R

    NEC 24V LiMN pack

    poor 500 cycles... :cry:
  8. R

    whats about KOKAM??

    well, when the kokams are good for 60°C on "normal" conditions...they are sure good for more than 100°C on extrem conditions... safety test of kokam shows, that they can take 150°C with no damage... the link is allready posted...so just klick it and watch...
  9. R

    whats about KOKAM??

    @BMI PLEASE STOP FOOLING THE PEOPLE... what you are writing is just absurd... here we have the specs of YOUR cells: http://lithbattoz.com.au/index.php?page=battery-cells so there we have a discharge temperaturerange of : -10 - 55°C... if your cells are SOOOOO safe, why are you just go to...
  10. R

    whats about KOKAM??

    is DOCTORBASS interessted in testing this cells?
  11. R

    whats about KOKAM??

    @lifeforphysics if we you can get a price around 80$ per 40Ah cell...that would be very nice... but, i send many email to the factory and they never answered any of them...i asked only for 50cells...maybe its a to small order to answer... i got the prices from a german destributer... maybe...
  12. R

    whats about KOKAM??

    @BMI did you missed the post on side "2"...this car with LiFePo, that burns out?? what i think is, that KOKAM is unknowen jet and not so easy to buy...if you write a email to them you want get an answer...dont know why... maybe, they just dont want to deal with "small" customers... write a...
  13. R

    whats about KOKAM??

    i guess so... they send me NEW specsheets... the 40Ah high energy cells are now good for minimum about 1200cycles...
  14. R

    whats about KOKAM??

    comon this BMI guy is talking bullshit all the way... first he says, that kokam are not allowed to be shipped by airplane...BUT THEY ARE... second, he says that his cell are sooooooo safey...but we have seen, that they are not... and the kokam are soooo unsafe...look on all the test, that the...
  15. R

    LiPo battery care and basic information

    another question: what is the point of having a nice energydensity(e.g. 150Wh/kg), but not using it...?? because you better not charge this cell full ==> 4.1V and discharge it only to 40%... so, its not much better than LiFePo4...right?
  16. R

    whats about KOKAM??

    really?? i would like to see this pictures...
  17. R

    whats about KOKAM??

    whats about KOKAM? i just found only 2 topics about KOKAM... i heard alot good stuf about KOKAM...why are kokam cells not used here?? they have very nice cells and they are not as expensive as BMI... so, whats the problem with KOKAM cells??
  18. R

    Motorcycle class Hub Motor

    mark, you said, that you had a temperature of 140°C...is there a temperaturesensor inside the windings or did you instal one on your self? generaly, what do you and all the others think of putting the voltage up and lowing the amps? wouldnt that mean less heat inside the motor? what is the...
  19. R

    Motorcycle class Hub Motor

    thanks for the explanation... :)
  20. R

    Motorcycle class Hub Motor

    you talked about the "KV" of the motor... what is the "KV"?? What does it stand for?
  21. R

    Motorcycle class Hub Motor

    hey mark, thanks for your description... i am not an electrician, so maybe i dont understand it right... 1) Heavier magnet wire results in lower winding resistance - i dont understand this. by heavier, you mean better purity of the copper wire? or higher density? whats about useing thiner...
  22. R

    Motorcycle class Hub Motor

    yes, your are right... i am looking forward to see your new prototype... would you explain what you have done to the design to improve the Eff? Or is it a secret yet?
  23. R

    Motorcycle class Hub Motor

    thanks mark... even without the holes in the sidecovers, the hubmotor isnt waterprooved, because of the cables, that come out through the axle... mark, the 4 threadholes in the sidecover are for the breakdisc, right? what are the other 4 bigger holes for? i saw pics on google of hard...
  24. R

    Motorcycle class Hub Motor

    hey mark, your motor is realy nice...keep going... can you post a picture of your sidecovers...i would like to see the bearing point... are the sidecovers out of alloy like your axle?
View older results
Back
Top