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  1. R

    How to Re-balance cells in a 10S4P pack ??

    Ok thank you guys for the reaponces!
  2. R

    How to Re-balance cells in a 10S4P pack ??

    In my E-skate 10S4P pack some welds were damaged by extreme bending ( Car incident), at the time only enclosure was damaged , but after a few rides a Power problem occured. I took battery out and discovered the damaged Welds on 2 of the 4P Packs out of the 10. I disconected those 2 pack from...
  3. R

    Common pack design mistakes, how to avoid?

    Lets say i had 10g copper wire conductor soldered the nickel strips.
  4. R

    Common pack design mistakes, how to avoid?

    Is this diagram , colors represent current and Heat. In this diagram where the wires are Red will also augment their resistance correct ? ...Will their Higher resistance at red points change the way Current flows through the Pack ? Will More current flow through batteries where heat is less (...
  5. R

    Common pack design mistakes, how to avoid?

    I mentioned "assuming connections can handle load". What i want to know is how is Current flowing through the cells,... flowing relatively equal or is one getting much more current than the others ?? Like in shematics on page 1.
  6. R

    Common pack design mistakes, how to avoid?

    How would this rate for current flow, assuming connections can handle load.
  7. R

    Another No Solder/Weld 18650 Build (Updated 03/09/2014)

    How would this rate for current flow, assuming connections can handle load.
  8. R

    5.5 Bullet Connectors ,..All the same??

    But copper is much less conductive than copper ??
  9. R

    5.5 Bullet Connectors ,..All the same??

    Some bullet connectors are made of Brass,.. some of Copper. Some gold plated some not ? There must be differences in Resistance ?,.. which are better ?? Copper is much more conductive that Brass, people never seem to talk about what there made of ,.. does it make a difference ? Where to buy...
  10. R

    Good motor mount for trampa ?,

    ?? E-toxx.com
  11. R

    Looking for wide hangers for Caliber II dual rear 6374s

    If they are high quality i will be buying some !
  12. R

    Samsung 30Q INR18650-30Q 3000mah 15a cell

    Ohbse can i ask at what Voltage your 30Q were delivered ? I recieved my 30Q's at 3.447-3.449 V .
  13. R

    Are 18650 HG2 or 30Q or 25R cells protected or not?

    Ok thank you !
  14. R

    Are 18650 HG2 or 30Q or 25R cells protected or not?

    All these popular 18650 cells we use for e-bikes or e-skates like the HG2 or 30Q,.. are they protected or not ??
  15. R

    How to know the battery's charge level

    Presice to 1/10 of a volt.
  16. R

    Evolve carbón GT can get 60 km/h

    1- Different Gearing 2- maybe also higher Voltage battery.(12S)
  17. R

    Samsung 30Q INR18650-30Q 3000mah 15a cell

    The price i got was 3.40/cell for 100 cells , then there is shipping and fees to take care of ?
  18. R

    1st Electric Skateboard: Safe Top Speed? kv ratings

    Go with 190 kv, ...you can always go slower if wanted.
  19. R

    Samsung 30Q INR18650-30Q 3000mah 15a cell

    shipping is around 1.00/cell , they can lower sale value for customs&taxes to.
  20. R

    Samsung 30Q INR18650-30Q 3000mah 15a cell

    "Shenzhen E-fire Technology Development" has agreed to sell me 100 for 3.40/cell ?, i have not bought yet though.
  21. R

    <$2.50 18650s? Cheapest cells per Wh?

    I think going uphill on a e skate would pull more than 30A ?
  22. R

    JP spot-welder, FET-switched, timed adj. pulse

    Riba is this mod needed if welding 0.15 mm nickel ?
  23. R

    Samsung 30Q INR18650-30Q 3000mah 15a cell

    What do you think about this quote about a similar cell : "The trouble with HG2 cells is they are more tightly wound and the coulombic efficiency will decrease more rapidly than a similar cell with a Lower capacity like the HE4 or HE2. This is only a problem if driving the cells hard in a...
  24. R

    JP spot-welder, FET-switched, timed adj. pulse

    Is there a Simplified explanation of what this mod Does and How & what is needed to do it??
  25. R

    Samsung 30Q INR18650-30Q 3000mah 15a cell

    How is the life cycle of the 30Q compared to the 25R ? Will the Coulombic efficiency decrease more rapidly on the higher capacity 30Q ?
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