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  1. bobbill

    All Axle Motor, make/cold by Grien Tech... Decent?

    Comment??...
  2. bobbill

    10S Battery pack limits to P - 36v 10s 4,5,6

    Was going to expand pack from 10s3p...to 4 or more p is there a limit to "p" cells...besides space etc?
  3. bobbill

    Rans Dynamik CF rig

    Anyone, do this...? I have one and plan to use Grin hub kit...on front wheel. Also, last year I built a 10s3p pack with BMS using Agniusm's packs after Vruzend failure. Also, I did not know how to hook up balance wires(was embarrassed to ask), so hooked up the wires to ends of cell packs and...
  4. bobbill

    BMS Balance Wire Connections

    I have x cells in P and I take my trusty meter and connect it to the plus (+) and minus (-) of cell group, is that reading a series measure or balance figure. IOW does the meter itself make up a circuit? I know it is a basic question, and answer likely in Sperry directions but directions are...
  5. bobbill

    BMS Recoms for 36v 10s7P Pack

    What works and is dependable?
  6. bobbill

    Noob Question re BMS

    I sorta know what it should do....does it function when charging, all the time or only discharging??? I figure if hooked up is working to balance cells all the time.
  7. bobbill

    Rans Dynamik w/ Rans Rear carrier and Kickstand

    Will have local BS pack and ship!!!
  8. bobbill

    Charge Level for 18650s

    I have 4 pack chargers i use. All are different, save they all cease charging at a certain level !00% One is sold by Luna and has switch to keep charge to 80%; another goes to 100%. For reasons not mentioned here, I bought a Chinese battery pack that came with a charger and the maker says to...
  9. bobbill

    Which advice to follow???

    Does one connect Parallel cells first, which seems to be preferred; or, connect parallels second/last; or, place both at same time. Reason am asking, as I have two references: one says parallels first; then one says does not make any diff...am a noob at this and rebuilding packs that failed.
  10. bobbill

    Cell matching,

    OK, got all 60 cells to 3.5V, half are 30Qs; half are NPR 2900 mAH. asic Need 10 more cells to make 10s4p pack, using NESE kit, What to buy? Figure to assemble and then charge pack or bring all to 3,7v first>>>? I know, basic craoppola,
  11. bobbill

    Balance Wire placenment

    Am dim nooby. But understand me stuff, like balancing cells is a call made when a BMS detects an average P cell group is at too low a level and shoots current to the group out of whack, to equalize or balance the group needing it. How it does this is accepted, but does it make a difference how...
  12. bobbill

    Choices and Reasons

    Noob? with Grin 36v motor hub, controller combo. 3P10S or 4P10S or No real difference, save size/weight? Does mAmp battery levels make a difference?
  13. bobbill

    Rans Dynamik...Seems Easy eBike Build

    Rans Dynamik: has Dart II fork and Rans rack (rear) and rear k-stand, narrow tires. Seems battery pack on rear rack and front hub motor might be easy conversion but I know squat about this stuff...am learning with another bike, however and in for a pound on that Zootr Swift so wondering if I...
  14. bobbill

    So Big?

    Apparently, it makes no difference how a series set is configured, as long as + and - are equal in current and number of similar cells, balance notsithstanding. So, a small 10s3p pack an be alternating sets of cells; or, all + or - to one side or other, albeit a bit more dangerous, being larger...
  15. bobbill

    BMSs

    Base mechanics. 10s3p battery pack or 10 groups of three cells, in series. Qustion: How do each of the eleven BMS balance wires or the BMS detect which cell is a problem, or, is it more general, meaning the contact is generally referring to the group, nothing so specific? So, for example, if...
  16. bobbill

    Guides

    Okay for whatever reasons, I have 60 18650 cells and half I have used a certain brand charger to charge fully. These are very good Pane and Samsung 3.7 v cells. I charged per maker instructions and end up with cell at 4.1 volts. From what I have gleaned herein, 41.5 is not good. So what now...
  17. bobbill

    Storage Charge Level

    Why is it advisable to partially charge (80%) cells and cell packs for storage, if over time, the charge lessens anyway???? I know squat, so keep it simple.
  18. bobbill

    Camera Cell ?

    Have a L-ion Sony FV 50 I need to re energize...have figured out wiring and have a charger...how long should I charge to jolt, 15 seconds or so? Thanks...lots of dodgers charge to max and let them sit...figure that is wrong...and have this one must have been too low too long.
  19. bobbill

    18650 Cell Questions

    I bought 30 cells to make two no-weld packs. The cells vary now in voltage from 2.3 to 4.3 volts and are separated into approx groups by measured voltage. Two, packs were 30S 3P... I tried Vruzend route and they failed, me, and the firm was silent. So I bought a made pack and it works...
  20. bobbill

    Am I Screwed - Up or What?

    I must ask. Okay, I bought a small Wallen pack and came with a 3a charger, tried to build a "no solder, "A" connect the cubes thing and it did not work. The Andersons that came with the Wallen deal would not connect, so replaced with an XT60 and ran charger, seemed all fine. Decided to go to...
  21. bobbill

    Basics for Newbie///

    I have built three nice bicycles w. gas engines and decided to try elctrice for light and quiet, though spendy, wires and picky. I built small, 36v 18650 10S3P pack... with BMS, very good batteries, all same voltage. I had some problems, which I ironed most out myself and hoped I was home...
  22. bobbill

    Basic Question

    Have alwys understood and practiced using as large a diameter wire as is possible...like 12 or 14 stranded... Now that rationale I understand; but what bothers me is using larger diameter wire and small Anderson connectors... Now, I have a number of 14 wires connected (finally) , using...
  23. bobbill

    Newbies Stay Away from Vruzend and Similar Gambits.

    FWIW, I know crappola about EV...built two 10s pacs...both Vruzend thingies. I will say in my perusing to learn, I have found tomjaz and spinningmagnets to be invaluble teachers; genius, and there are likely others which I have yet to endounter, so do not feel left out. Thanks. The other side...
  24. bobbill

    Tinfoil or Any Metal for Parallel BussBar?

    Does it make any difference what metal is used in parallel connections, considering small voltage? For example, the series buses being all nickel...can use small copper wire, SS or even tinfoil for the parallel connections on a 36v pack 10s3p???
  25. bobbill

    Nickel Strip vs Solder (Tinned) Woven Copper Busbars

    Comments?
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