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  1. T

    Converting an all aluminum bike, front hub motor

    The two front drive ebikes I currently maintain... WIFE's 300w bafang, aluminium suspension forks, c washers, no arms, no problems, even after 3530km and many overnight/off road trips MINE 350w+ Mac, alu frame upon which I put a surly/steel/nonsuspension fork, no arms, no trouble after 4125km...
  2. T

    turnigy lipo rebuild

    I have a few 5s with one dud cell (all at outer edge). I'd be interested in how you can make 4s out if them. Could somebody give a step-by-step? I.e., what other terminal? ... I assume this is some sort if bypass, but one wouldn't need a proper 4s protection circuit? Cheers. Brad
  3. T

    Schwalbe or Maxxis or Kenda

    I'm sure they're all good for one purpose or another so I wouldn't like to lobby for schwalbe marathon plus at the expense of the others - that said, mine have now been on the bike (frequent commuter use; sometimes offroad use; always with lots of weight) for three years, half that time in ebike...
  4. T

    reconfigure a 4x3 (12s) headway pack as 6x2?

    I've had a 12s (12Ah) headway pack for 18 months now - ex EV Assemble. Although it wasn't stuck together too well and arrived with the balance plug half out of the bms (which is why I opened it, popped back in the plug and took the attached photo), it has given good service. I commute 16km, 4-5...
  5. T

    MAC Motor 500W and Hot wires

    my point (lost, apparently) is that these motors are not designed for some of the speeds which folk want to achieve with them and they are certainly not designed for high amps. Keep to 36v with a max of 20A and they just go and go and go. What does my peak draw of 14A and max hot of the charger...
  6. T

    MAC Motor 500W and Hot wires

    Meanwhile... My MAC keeps chugging along happily and running cool as (probably because I have a 36v battery and a 20A controller which almost never gets beyond 14A). It sits on a max speed of about 34km/hr which clearly isn't fast enough for some, but I certainly appreciate its reliability...
  7. T

    Bionx SeaScape launching in summer 2011

    i reckon an off-the-shelf (and presently available) electric trolling motor to replace the rudder on my sea kayak would make a far better package. Kayak fishers do that all the time and they can put their kayak on the roof of their car rather than lug such a bulky, inefficient looking thing all...
  8. T

    An idea for locking your batteries to your bike

    I've used the Topeak Fixer6 to good effect too - there seems to be no reseller here in New Zealand but I've sourced them from Aus for A$15 plus a little bit of postage ( http://www.thebikebarn.com.au ). If you take an Otterbox 3500, rip out the padding inside and screw it to the Fixer6 you...
  9. T

    Simple battery question (i think)

    Among other things, a solution might depend on a) the controller's power capabilities and capacity to be reprogrammed and, therefore, I won't be much help because I don't know the bionx controller at all b) how much anxiety you've got about joining the stuff together. I sense that you'd like a...
  10. T

    MAC 350w (front) and Infineon 20A compatibility

    It'd be a bit sad if, on my third ebike build, I was sufficiently dumb to put the wheel on backwards! (especially as it has a disk brake/rotor to tell me which way to go) BUT THANK YOU ALL FOR YOUR HELP!!! The kindness and thoughtfulness of folk on ES never ceases to amase. Bugger me - after...
  11. T

    MAC 350w (front) and Infineon 20A compatibility

    Thanks heaps for the tips on testing - I didn't know how to test this without specialised equipment which will take weeks to have sent here (New Zealand) = great to know that I can test the halls with a simple voltmeter. I could check the throttle, but I'd be surprised if it was that because I...
  12. T

    MAC 350w (front) and Infineon 20A compatibility

    Cheers Wanders. That's what I started with (as I saw that combo posted on ES a few times), but I got the exact same result. I'm beginning to wonder whether my hall connections aren't the best, but it could be so many different things it's hard to know where to start.
  13. T

    MAC 350w (front) and Infineon 20A compatibility

    I checked the no-load amps again (three repeats) using all colours matching. Peak amps were 2.41, 2.35, 2.5. I can't recall whether the earlier 6-7 readings were with the greens and yellows transposed but performance at the wheel seems to be the same either way. Perhaps I'll have to...
  14. T

    Greetings from New Zealand

    Hi Kiwi, As I stated, it is good to have a supplier in NZ. We are at the mercy of overseas companies here, which forces NZ ebike consumers to do things as individuals across distance and that's risky and expensive. So, good luck to you: I hope it works out, drives the overall prices down and...
  15. T

    MAC 350w (front) and Infineon 20A compatibility

    Thanks for your reply. You mean in the hub motor itself?
  16. T

    MAC 350w (front) and Infineon 20A compatibility

    Looks like I'm paying the price for purchasing motor (cell_man) and controller (cycle9) from different vendors (I so knew at the time that this would come back to haunt me!) I've tried matching the colours for phase and hall wires and switcing green and yellow for both phase and halls. Both...
  17. T

    EVAssemble packs

    I have an evassemble pack. The dimensions quoted were different from reality, second hand wire was used, some of the crimps were very poor and the connector for the bms popped out of its own accord. However, it was fine value for money, I could easily fix the problems myself and, at the heart...
  18. T

    Greetings from New Zealand

    Well. It's good to see a stockist in GodZone, but - frankly - there are much cheaper ways of sourcing kit. Those prices will serve only to bring all providers of ebikes/parts in NZ into further disrepute. And, with the way others have been selling 4 year old tech for twice its original price...
  19. T

    how to diagnose a battery pack/bms problem

    Thanks guys. I didn't blow the voltmeter because there was no voltage going through the leads => I took off the multiple layers of tape and shrink wrap and the problem was obvious: the plug which connects into the bms and carries the narrow gauge wires from each battery had dislodged. Plugged...
  20. T

    how to diagnose a battery pack/bms problem

    Poorly housed connectors was my first assumption but, as stated in the original post, both my 'IN' leads (for charging the battery) and the 'OUT' leads (for connecting to the controller) previously could be used to give a voltage reading - connecting my turnigy watt meter to either of those...
  21. T

    how to diagnose a battery pack/bms problem

    Hi. I'm hoping some of you kind experts could tell me the steps I should go through to diagnose a battery problem. Pack is: Headway 12Ah 12s1p with a capacity-based bms (pack made by evassemble.com). The pack worked well from day one and has gone through ~20 cycles, usually never below 60-80%...
  22. T

    Should I buy this battery?

    In addition to the good advice you've received about the real amperage of the pack, I'd check via email that it is gauranteed to be 12s. I've seen a few dodgy adverts for 36v lifepo4 in recent weeks wherein, if you look at the fine print or ask the seller specifically, they are actually selling...
  23. T

    EV Assemble.

    I bought the full package from evassemble (controller, motor, battery, throttle). Like others, I received a battery with bigger dimensions than I was promised (20mm extra height) but unlike others that didn't cause me too much bother. They seem good at customising batteries; in my case, using a...
  24. T

    dc-dc convertor

    Agreed. They run cool, whereas another dc-dc converter I used melted the trunk bag in which it was stored. The Hitrons can power a magicshine/p7 either off the 6v 3A or the 12v 1A without much complaint
  25. T

    All dogmans Ebikes , 2008-2011

    Dogman, This thread is one helluva magnum opus in ebike terms! But... as somebody running in his first build and already spotting the conceptual errors in his ways... it's also scary! Thing is, I could easily see myself doing 13 builds and still not feeling like it's quite right. All the best, Toa.
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