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  1. monster

    UK gov' consultation to allow higher power ebikes and throttles

    Hi The UK government is running a consultation to see if its a good idea to increase the legal ebike power limit. they are thinking about increasing the power limit to 500w and allowing throttle control, which seems sensible. If youre in the UK can you fill out the form? you have untill 25th...
  2. monster

    EMCT1441 how to connect this controller?

    Hi Can't figure this one out. Its brushless. It has 3 phase and 5 wire hall sensors all normal so far... But Can't get it to fire up? There are 3 other connectors Black/white which i thought was brake or on switch. Red/black/green/yellow which i thought was throttle plus brake but could be...
  3. monster

    Ultra motor: What is this hub motor? Is it broken? How do i open it?

    Hi Bet you've never seen a hub motor like this before? I looks like a bruched motor with temperature sensors. but when i connect it to a battery it doesn't move just draws a big current. so i figured it must be shorted, but how do i open it? there are no bolts to undo? i tried taking half the...
  4. monster

    controller with computer on-switch won't switch on?

    Hi is there a way to by-pass a computer controled on switch to switch on with a normal switch? its the 5 wire display shown. I can't get the bike to switch on and i've tried a controller swap with a duplicate controller sent from the manufacturer. I've checked the throttle, halls and battery...
  5. monster

    any good 7s bms recommendations?

    I found this one in a pack i bought on ebay :?
  6. monster

    is there a way to change battery status led for different battery voltage?

    I want to use a 3 led battery status indicator throttle thingly. The bike was 36v but i want to use 24v battery and controller. I assume the leds will show low battery. Is it possible to open the throttle and swap resistor values to make work correctly with 24v?
  7. monster

    correct controller for 10s lipo? will a 36v/48v ebay one work?

    Hi I have a bike with 10s lipo and need a controller. Im worried that the cheap ebay 36v/48v ones will have the wrong low voltage cut off cos thy are expecting 3x lead acid or 4x lead acid? Are they ok?
  8. monster

    Hover chair vs hover trike?

    we're in lock down so ive been building projects like crazy just to relieve the boredom. I built this hover chair thats neat. inspired by https://www.youtube.com/watch?v=LnzrY40PuC8 But i've not been able to test it much because of the lockdown. has anyone else done this? or anyone built or buy...
  9. monster

    throttle with yellow wire gives swapped action?

    Hi I am fixing up an old bike with a throttle with a red, green yellow wire instead of the normal red, green black. the throttle is broken and having trouble finding replacement. a regular throttle gives full power at off and no power at on (reverse operation). Is it possible to open up a...
  10. monster

    old motors inefficient?

    Do motors loose efficiency with age? I have a 15 year old crystalyte 406 that still works! But it seems to drink the juice twice as fast as it should. Is there a way to refurbish it? I have checked the halls and they're all working.
  11. monster

    mislabeled BMS ! what to do?

    Hi I'm repairing a bike for a friend. He has given me all of the components including this BMS which seems to be mislabeled. Normally i would expect to see connections for B- (battery -ve), C- (charger -ve) & P- (controller -ve). Sometimes there is only B- and -ve. On this board there are...
  12. monster

    How much did you save driving your electric car last year?

    Hi i saved £1800* (2400$) last year by driving a leaf24 instead of a diesel ford focus. Is this the highest or can anyone top that? *My number includes: taxes, fuel, depreciation, electric but not insurance or mainance. I assumed they were the same for both cars.
  13. monster

    recharging in the field - the ultimate!

    How about this idea? You drive your car to the trails with your electric bike in it. You ride round for an hour and flattern your first battery. Then you swap over to your second battery in you back pack and ride back to your car. You then plug your first battery and charger into an inverter...
  14. monster

    adding nicd cells to a car battery?

    hi i have a load of rotten nicd cells lying around and my car battery is too week. past owner put a smaller battery in and its diesel. how can i do this? if i parallel nicds i need diodes, right. but the parallel strings would still need to be charged seperatly before the diodes, so i can't...
  15. monster

    standard (duty cycle) test corse for e-bike batteries?

    hi there should be a standard charge-discharge duty cycle that mimics use in ebikes. when they do fuel efficiency tests on new cars they have a standard test cycle that all cars must do. its the only way to get like for like comparisons. this kind of thing would be useful for batteries. you...
  16. monster

    variable regen braking idea using PIC micro

    Hi We can all make a "dumb" plug brake that drops the motors coils across a resistor (see thread) http://endless-sphere.com/forums/viewtopic.php?f=2&t=10422&hilit=+plug+brake. but there is a problem with control of the braking force at different speeds. what we need is a controller that...
  17. monster

    destruction testing a ping battery *video*

    Destruction testing a ping LiFePo4 battery. this is a working battery that i ripped the tab off by acident. it only had about 50 cycles on it and was fully charged before the test. in the first video I smashed it into the ground about 20 times, then i stab it with a steel shank, then i submerge...
  18. monster

    who sells crystalyte motors in the US?

    hi i always buy from Ebikes.ca but is there a US source of crystalyte motors?
  19. monster

    My pic based battery charger development

    hi i just made my first PIC project. it is a pic controlerd power supply. it can vary the PWM of a mosfet to limit the current. the output is probably a square wave because i have no peak smoothing capacitor or inductor. i just increased the frequency of the switching so high that it read like...
  20. monster

    rust removal solution?

    i just had an intermittent fault on my bike and i tracked it down to the hall signal connector. it must be rusted or something because i just pluged and unpluged it a few times and it worked again. i use 6 pin PS2 (kbd/mouse) connectors as my hall connectors. is there an anti-rust solution...
  21. monster

    I want this bike!!! 200+mpg

    check out this 200mpg bike. i want it!!! http://www.velomobiel.nl/allert/Recumbent%20motorbike.htm
  22. monster

    myth?: eliminating memory effect with an arc welder?

    hi have you heard of the myth about eliminating memory effect in NiCd cells with an arc welder? there are videos on youtube. it sounds like a myth to me. anyone have experience?
  23. monster

    cool new LED lights on ebay

    the best search words seem to be SMD or G4 LED. here are some of my favourite: http://cgi.ebay.co.uk/G4-9-SMD-LED-Marine-Warm-white-Light-Bulb-Lamp-12V_W0QQitemZ150405049021QQcmdZViewItemQQptZUK_Light_Bulbs?hash=item2304d6eabd 22lm/£...
  24. monster

    any one know about suspension pots?

    hi i examined my rear suspension pot on my bike and it seems to be just a spring without any dampening. is this normal or has it broken?
  25. monster

    Gartree wind farm application public planning meeting this t

    i just got this email about the Gartree wind farm application in market harborough (UK). does anyone want to join me in support of the proposal at the public planning meeting on this tuesday 26th January ? looks like we will be out-numbered 12:1 by NIMBY's tho. Dear Sir/Madam, Please find...
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