Search results

  1. 1

    27W LED on the front

    Another step forward prepping this for wiring up (and the other light that's going on my "HIGH" light setting). I've fitted a Delphi waterproof connector so this large light can be plugged in when bolt-mounted on the front of the bike, without having to open up my triangle box - which would be a...
  2. 1

    CST - it's all working

    Spent some time today tidying up my controller and power leads. It has to be done so may as well get it out of the way whilst the soldering iron was hot. Removed a whole load of superfluous wires from the controller and soldered together the 36V/48V selector wires inside the controller that...
  3. 1

    Voltage converters - Checking quality / spec & connecting

    Thanks - that makes sense. Any rule of thumb on the capacitor ratings that should be used on these things and the split between the first and the 2nd ? The 2 9V types have very different capacitor modules.
  4. 1

    Review of the Haibike FS AM

    I still have to admit .... 1st thing I'd have done with it would have been to go and get it full-on mud-soaked on the nearest hill trail. And I still think that's what you need to do, OxygenJames - those bikes are built for proper fun and I'll bet you could have some if you used it to branch...
  5. 1

    Article on BBC Web site about electric bikes

    Rob Spedding, a self-confessed middle-aged man in lycra. For enthusiasts like him, the point is pedalling hard and getting fit. "For us, an electric bike is cheating, isn't it? If we wanted to go up Alpe d'Huez [in the French Alps] under power we could drive up it. We want to get there under...
  6. 1

    Motor phase wire connections to controller

    I'm about to upgrade the bullet connector pairings on my 3 motor phase wire leads and controller wires to Anderson powerpole connectors - as I have a few kicking about. Just wanted to check about the connector ratings ... The controller's 30A (might run a bit more). However, is this much...
  7. 1

    Voltage converters - Checking quality / spec & connecting

    OK - you're absolutely right on the 4-screw ones. Can actually see by just turning over - which I completely forgot to look at ... The left hand solder points correspond to the screw terminals and the middle 2 are joined, but untraced so must therefore be the 0V input and outputs. The +ve...
  8. 1

    Voltage converters - Checking quality / spec & connecting

    Checking components used Sorry - a bit tekkie all this, but also wanted to check the components used on the HRD devices as a couple came from Shenzen and just thought prudent to check the components first before hooking up my stuff. They are all variable input / fixed output converters...
  9. 1

    Voltage converters - Checking quality / spec & connecting

    Received the last of my outstanding voltage converters today and would appreciate some help with checking whether they're the right spec and also how to wire up in the case of one of them. This is the array ... they're all HRD converters rated to 3A with the exception of the one at the right of...
  10. 1

    Can these really be ebikes?

    Looks good to me as a road bike option if you're going to buy a ready-made bike for light assist - and has to be better than that dreadful Gruber push-button assist thing. Even the Youtube videos couldn't make those look appealing, especially when you factor in the exorbitant price tag. Still...
  11. 1

    DZR urban cycling shoes- a review

    Glad you found some shoes which work for you, AlMel. There's not much choice for ladies. I usually get all mine from Chainreaction cycles as they have a huge range of Shimano shoes which fit me better than most regular shoes and are easy to wear off the bike. Their deliveries usually arrive...
  12. 1

    New Light runs direct from battery.

    OK I just did a current test on this light running off an almost-full 36V 20Ah battery reading 41.8V. The current drawn was reading 0.23A -almost negligible. :eek:
  13. 1

    27W LED on the front

    Brilliant stuff. Think I'll test the other one too and see what that's taking supplied at 36V and update that thread. :) The DC-DC converter is rated for 3A but I'd rather stay well below if possible - less heat I guess and as it's not an external housing box that is my main objective, to keep...
  14. 1

    27W LED on the front

    OK. Done. Volts turned up to 23.9V Current measured is 0.6A Not a busting lot in it but seems less current drawn at the battery so maybe less efficiency loss in the DC-DC converter setting it higher relative to the input voltage ? I think there must be a buck converter in the lamp and...
  15. 1

    27W LED on the front

    OK hold on I'll try again ... blinded by the flashes and couldn't see it ! EDIT :- 0.65 on the 10A setting. That DC-DC is adjustable and I set it to 12V before soldering light contacts on. If I want to try adjusting the voltage can I measure this by putting the multimeter contacts on the out...
  16. 1

    27W LED on the front

    I'm getting big sparks doing that on both 10A and 200mA settings. Something isn't right ! ... but the light is coming on and readings are flashing up on the multimeter ... the sparks are considerable though - worried I blow something up lol
  17. 1

    27W LED on the front

    Yes, the lamps need supply at different input voltages. The scissors is meant to be a handlebar switch with a power in and 3 separate power out leads (only one is shown - tho others will hook up to tail lamp and a CREE). The switch has 3 output leads : 1 - off on low / on on high 2 -...
  18. 1

    27W LED on the front

    Beyond me for this time of night (maybe after a lot of studying - when not on cocodamols, Mike lol). I kind of think more in terms of "put the pins on the contacts before opening the circuit when you measure current" if that's what's meant by "connecting leads in series" ?
  19. 1

    27W LED on the front

    OK here's what's rigged up might be easier to see. The master FET switch off the battery opens the circuit and closes it so I just use that to turn the light on and off. The only contacts I have that aren't insulated are the BUSbar pins battery side of the DC-DC converter and the soldered...
  20. 1

    27W LED on the front

    OK found the instructions. They say put black in COM and red in V.ohm.mA unless measurement is for current between 200mA and 10A in which case put red in 10ADC slot (which is is now). Then says set rotary switch at desired DCA position - which I assume is 10A about 100 degrees clockwise from...