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  1. A

    currie electrodrive help

    cheers
  2. A

    currie electrodrive help

    64ragtop - that is the battery - like you say it should have worked the motor is sealed - so nothing could get inside all wires are fine i can hear the motor tops out at about 19/20mph when i pedal and again it used to top out about 21/22mph it has actually got a little better in the last...
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    currie electrodrive help

    nimh were in series - 24v yes it is a brushed motor motor still works fine - just a little slower sla were fully charged before i stopped using it for a few months and the system worked well then (19mph) so then after the swap and then back again it now goes a little slower (3mph) wireing...
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    currie electrodrive help

    perfect i actually figured it out for myself last night and ive just logged on now and got the same answer as what i did i tested a 1.5v battery first to see what happened with the minus sign when i was confident i did the same with the charger ive used the digital meter before so i...
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    currie electrodrive help

    thanks for all the help guys 1 question what exactly do i need to do with my DDM (voltmeter) to figure the polarity out a nice idiots guide would help thanks Alex
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    currie electrodrive help

    hi i have taken my currie electrodrive box to bits to try a new battery system well the results were poor so ive decided to put the old sla box back together ive got it all back together but when i first took it appart i cut the wires off to the charging socket - and now i dont know how to...
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    Overvolting a Currie???

    let me know how this goes and what you end up doing as i may want to do the same thanks Alex
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    controller max voltage question

    Super helpfull guys ill get the nimhs and give it a try thanks for the info everyone Alex
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    controller max voltage question

    i have a 24v system and the controller has a sticker on it saying "max voltage = 26v" ive took the box appart and there are a few capacetors with 25v on them and there are the black components that are attached to the case but i cant see a voltage on them i want to run 2 x 12v nimh insted of 2...
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    currie electrodrive question

    yeah i saw that thread but i didnt know what effect only running 2 batterys in series would have it says the batterys can handle 30 amps - i think thats about the max for my setup so i assumed it would be fine i might just get 2 and try it at £50 even if it didnt work im sure id find a use...
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    currie electrodrive question

    THATS GREAT Do i need to worry about voltage sag? bear in mind the system is currently using 2off 12v 12ah sla im also guessing that it is a claimed 3700mah and probably more like 3400mah i think i can manage the maths now but a reply about voltage sag would be super cheers Miles
  12. A

    currie electrodrive question

    thanks for taking the time to reply im really after someone to work out the maths i dont want to go a reasonable distance - 3miles max 2 miles would be ok can anyone tell me how far id get before loosing power using these batteries? thanks Alex
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    currie electrodrive question

    Hi will my 24v 450w (peak 750) brushed DC currie electrodrive motor get me 3 miles of flatish road using 2 x 12v 3700mah vapextech r/c nimh batterypacks hope you can help thanks Alex
  14. A

    Ever stole electricity?

    the widower / widow comment got me laughing in my country medical care is free although prescription medication has to be paid for - but certain people are exempt - and im almost certain this man / woman would be exempt even so - if he / she has to pay for food im sure they could afford...
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    which battery chemistry?

    im leaving a lot open physical durability resistance to over / under charging discharge charicteristics shelf life output over life complexity (bms etc) charging complexity safety heres the choices sla nicad nimh lipo life(po4) lico li-ion any others?
  16. A

    which battery chemistry?

    heres a question for you all... if all battery chemistries were the same cost and had the same weight/size/energy density which would you chose and why...
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    need lights look at this forum

    Ok no idea where to put this as its not really e-bike stuff i see a few of you are interested in lights for your e-bikes and as your already into forums i thought id link one for you http://www.candlepowerforums.com/vb/ light technology - particularly LEDs is a bit like e-bikes - most people...
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    switch insted of controller???

    all very helpful info guys - thanks a lot for the replies Alex
  19. A

    puma info

    thanks for the info so do they also come with the steel gears now? or is it just the other stuff thats been upgraded i currently run the electrodrive (currie) system the top speed on the flat is 19mph (26inch wheel) and the no load speed is about 21/22 mph does the puma behave similarly - as...
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    switch insted of controller???

    thanks for the reply id probably ride to like 5mph before switching on i would have thought for a single stage switch the cost would be very little (look in my box of junk for some steel plate a spring some bolts an old sti or thumb shifter - a bit of imagination - there you have it) it...
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    switch insted of controller???

    Yeah i currently (no pun) have a brushed motor and want to go 36v but will need a controller and battery's £££ i know controllers can be had for low price but id be worried that low price = low quality and so will probably break pretty fast its nice to know that it could work if i needed...
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    puma info

    looking at getting a puma motor - well in a few months will they run at 24v? not that i want to do this - but just as a temporary thing what battery do i need to achieve 25mph on the flat on a 24" wheel and aprox 10miles range un-assisted also i see that knoxie says on his videos that its...
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    switch insted of controller???

    Is there any reason (apart from its a bit crude) that you cant just switch a motor - as in on/off, instead of a controller? you could just use a cable operated insulated switch (home made) to avoid electrocution if hammering all that current in under load is a problem then maybe a 3 speed...
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    ******Hey..... look what I found in the back yard******

    looks like it might be something from keewee bikes - a new Zealand bike company that do some cromoloy downhill frames / bikes very nice build Alex
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    40mph safety

    as i said in the OP road safety is not really in question - any speed on a public highway is dangerous - pedal bike, scooter, motorbike, car - all very bad ideas when it comes to safety - im wondering - do posters like D-man think that 20mph on a bike is safe? if your in an accident its going to...
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