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  1. rollingreenhills

    ‘net-neutral load’ electric powered trailer

    Also video in action. It looks like there is some sort of cable hook up . . . https://youtu.be/06TFgXvB9bk
  2. rollingreenhills

    ‘net-neutral load’ electric powered trailer

    I am fairly sure it would be easier to use a standard throttle with a long wire. . .but: I have just been reading about this new type of electrically assisted bike trailer, it looks fairly standard apart from the throttle being replaced by a sensor that pushes and pulls, and adjusts speed...
  3. rollingreenhills

    throttle wiring question

    I have found that wiring a resistor in to the signal wire can give a set speed reduction. In some countries this might be a way to make an illegal bike legal. I have deatiled my experinces here: http://dorkythorpy.blogspot.com/2018/07/reducing-speed-of-ebike.html I found a 1.2ohm resistor...
  4. rollingreenhills

    Easiest power loss fix ever... 3spd switch

    Thanks guys. I appreciate all of the info, equally from all involved. :shock:
  5. rollingreenhills

    Easiest power loss fix ever... 3spd switch

    So a 3 speed switch is not a potentiometer? Could you solder a three speed switch to the throttle cables, in order to produce stepped speeds? My bike is too fast so I need to limit the throttle to about 50%. I have looked at a method using potentiometers. Also resistors.
  6. rollingreenhills

    Surge in Voltage - DC to DC Boost Convertor

    Thanks Amberwolf, very helpful as always. I will try your suggestions.Have a nice day.
  7. rollingreenhills

    Surge in Voltage - DC to DC Boost Convertor

    I have a spare headway cell I am trying to use to power small LED lights. It is a 8amp high power cell, and it is behaving normally. I have connected this to a boost convertor module from ebay a...
  8. rollingreenhills

    Automatic Phase Wire Configuration

    Thanks Amber Wolf. So sorry to be completely thick. Does the learn wire automatically configures the hall settings? . . . . In the listing (which means nothing I suppose) it describes the controller for sensored only.
  9. rollingreenhills

    Automatic Phase Wire Configuration

    Cheers dogman. So this really is down to luck? regarding amperage, this is for a Bafang BPM 500, so not sure if I want to feed it any more. Probably pop it with this one!
  10. rollingreenhills

    Automatic Phase Wire Configuration

    UPDATE: I assumed this controller was automatic, and soldered the wires together with no thought as to order. And it worked first time. So either this controller configures hall settings automatically, or I am 1 in 36 times lucky. :?:
  11. rollingreenhills

    Automatic Phase Wire Configuration

    Is there such as thing as a controller that automatically configures phase wire order? I have a controller where all of the phase wires and 3 of the hall sensor wires are the same colour. . . . Surely a manufacturer would not be this thoughtless if the configuration were not automatic? . . ...
  12. rollingreenhills

    Limiting Amps to Controller

    I think most thing are hard to do, when you are starting out. My electrical knowledge was very low when I started this, and still is fairly low now. I know all you guys on here are tech heads, but I am not.
  13. rollingreenhills

    Adjustable Voltage Controller

    So. I have heard from reading around that a motor have the most torque, at the lowest revs. So, if torque increases with a decrease in speed, then this button could have simply been a speed controller?
  14. rollingreenhills

    Headway 38120 LifePo4 Reliability

    Thanks 999zip999 I'll bear that in mind.
  15. rollingreenhills

    Adjustable Voltage Controller

    I have had a look at delta wye, but don't really understand it. I do understand the series parallel concept, but you would have thought that wit even fairly rubbish SLAs, there would have been plenty of amps in series, so the torque increase would not be so noticeable. I appreciate your...
  16. rollingreenhills

    Headway 38120 LifePo4 Reliability

    No, but I was fed up with my previous experience, and these guys based in the UK offer a guarantee and will build the pack any way you want. I needed a particular shape.
  17. rollingreenhills

    Headway 38120 LifePo4 Reliability

    Hi the stocks are limited I believe: http://lithium-battery.eu/
  18. rollingreenhills

    Headway 38120 LifePo4 Reliability

    OK I got this to work in the end. . . . First Off - Thank you very much to the people who offered solutions to my problem. All of those winging about me using 2nd hand cells and having two posts . . . the second hand cells were not the problem. My incompetence was the problem. I had my...
  19. rollingreenhills

    Adjustable Voltage Controller

    Bump
  20. rollingreenhills

    Adjustable Voltage Controller

    When I was at school, there was a kid (rest his kind soul) with a disability scooter which had a "tortoise" button on the controls. When you pushed it the speed of the thing would drop, with a big increase in torque. Say you have 500W motor and run 48V through at 10 amps, would running it at...
  21. rollingreenhills

    Radial lacing a hub motor.

    Ah, OK. I have a rim, which is the right size to use existing spokes, but radial rather than 1 cross. I was hoping to re-use the spokes . . . Does any body have a radially laced drive wheel that has worked reliably?
  22. rollingreenhills

    Radial lacing a hub motor.

    I have seen this powerful motor on here: http://www.leafbike.com/products/diy-bike-conversion-kit/20-inch-electric-hub-motor-kit/updated-20-inch-48v-1500w-rear-hub-motor-bike-conversion-kit-986.html Which is radial laced. I have a 500w 20" cargo bike bafang BPM 48v front wheel drive. Can I...
  23. rollingreenhills

    My Non Hub Motor Cargo Bike

    Well I have finally got my bike up and running again, with the hub motor set up. It is a LOT quieter, and about 50% (ish) more torque, the low speed torque is rock solid, it drops down to a certain speed and just stays there. Oooomph! Thanks for all advice.
  24. rollingreenhills

    Step Up Transformer 24 to 48 volt to run motor

    Dear parabellum, Thank you for your reply, there are 2 irrefutable advantages to lead acid: -The low initial cost. -Low skill level in use. They may be heavy, bulky and generally rubbish, but for those a a steep learning curve and tight budget they are a blessing. I do now have a...
  25. rollingreenhills

    Headway 38120 LifePo4 Reliability

    Update: Charged all cells with single cells charger and nitecore charger with croc clip extensions, all cells at 3.5v or above. Connected balancing wires 16 LED lights came on except one, allowed these to go out (presuming trimming off excess), then pluugged back in. Now all LED on BMS are on...
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