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  1. B

    Motor phase wires insulation falling off

    Yeah they are definitely cheap. My concern is if they are cracked also inside the cable shielding. I'm gonna peel back more of the cable and see how the insulation is holding up on the phase wires. The cable is too long anyway.
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    Motor phase wires insulation falling off

    First I thought it was just the stripped part of the yellow/blue wire that was cracking but then I stripped some more of the cable shield and then it seems to be under there too. It can be a nasty surprise if it starts shorting inside the cable. Cold definitely makes it more stiff but to the...
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    Motor phase wires insulation falling off

    Hi. I noticed that insulation of the wires to the motor has cracks in it and is falling off (pictures attached). Why is that happening is it because of heat, the motor has always been very cool and cable as well. Has anyone had the same problem? Should I replace it with thicker wire? Though...
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    Throttle is always accelerating

    I measured the output from throttle and did have the motor running. Throttle goes all the way to 4.9V but at 1.4V the motor stops accelerating that means from 1.4V to 4.9V nothing happens, that is all changes in position of throttle the motor does not spin any faster. Effective throttle is only...
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    Throttle is always accelerating

    Hello. Finally my build is coming together but I have a half twist wuxing throttle (from em3ev) and it feels more like an on/off switch then a throttle. When riding I'm always letting go of the throttle and can't seem to find a position where I'm not accelerating. Is this just the way this...
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    Pin out of BBS02 brake sensor

    Hello. I need to change plug on BBS02 brake sensor (3-wire) to work with my controller. Where can I find the pinout of that plug?
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    Hub motor. High current with no load

    Alright I think I have figured it out. I followed instructions at https://endless-sphere.com/w/index.php/Determining_the_Wiring_for_a_Brushless_Motor Now the motor takes much less amperage and does not have this rough sound. If someone has the same setup like me here is the combination...
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    Hub motor. High current with no load

    Hi. I'm having trouble with my first ebike build. Which is that the motor turns in right direction but it is loud and rough and draws high current with no load (blew 20A fuse). Poor video but you can hear the sound when the motor is spinning. https://www.youtube.com/watch?v=vfQCmul1FuI This is...
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    Freewheel 8 speed. What to buy?

    Funny to hear such different opinions on DNP freewheels, some say it garbage then others have used them for thousands of km. I'll begin with the Shimano 7 speed 14-28t see how it goes. But thanks for the offer.
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    Freewheel 8 speed. What to buy?

    Bought Shimano 7-speed. 14-28t. Hopefully it will be fast enough top speed :)
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    Freewheel 8 speed. What to buy?

    Hi. I have been searching online to find 8 speed freewheel for my hub motor ebike project. Are there any good quality freewheels available? Aslo 11t is not very common it seems. What freewheel are you using?
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    BBS02 chain line issues?

    There is no way to adjust this?
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    BBS02 chain line issues?

    What can I expect if I install bbs02. Would I not be able to use all gears (7 speed) because the chain line isn't good?
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    Good 14s BMS with balancing function?

    Did not ask them, just couldn't see it on the site like before.
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    Good 14s BMS with balancing function?

    Where can I find good BMS (with balancing) for 14s battery? Has Lunacycle stopped selling BMS boards? Cannot find it on their site.
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    Advice on cells

    Hi. I'm wondering what you battery pack builders out there are buying. Samsung 29E or Sanyo NCR18650GA. The 29E (http://ru.nkon.nl/rechargeable/18650-size/samsung-inr18650-29e.html) is cheaper than the Sanyo cell (http://ru.nkon.nl/sanyo-18650ga.html) but it has more capacity though. Anyone...
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    Mix new 18650 with old

    You should visit Iceland again :) I like the idea of having the two parallel packs. One recycled and one new. I'm thinking new pack: 13s4p (would buy 2 indentical cells from somewhere else to get 52 total). And recycled pack would be 13s2p, maybe that is too small to be of any difference? The...
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    Mix new 18650 with old

    What is the config you intend to build with the He4's? What about 13s6p pack. Have 2 old in parallel with 4 new. Lunacycle is also selling Samsung 18650 INR-18650 25r not sure exactly what is the difference from the LG He4. How many recycled cells and what type do you intend to acquire? I have...
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    Mix new 18650 with old

    This is for a new pack. I saw this http://lunacycle.com/batteries/bare-cells/lg-18650-he4-18650-50-pack-wholesale/ seems like a good deal. Then I would add in parallel old cells since 50 cells for 13s pack is too little. Most of the pack would be new cells.
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    Mix new 18650 with old

    Yes that is what I was thinking. Older cells are around 2000 mAh. But new would be 2500 mAh.
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    Mix new 18650 with old

    Hi. I'm ran into a snag with my battery build and that is the supply of recycled laptop batteries :) I thinking of buying some new cells and using also good and tested old cells. Is there a problem with that? These recycled cells would be a good condition cells.
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    BMS for 48V battery

    Yes that could be done. Then you are not limited by BMS current limitation and BMS would cut off relay when cut-off voltage is reached.
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    BMS for 48V battery

    Yes I will be having a lot of them in parallel. The controller is 25A. According to http://em3ev.com/store/index.php?route=product/product&path=50_36&product_id=166. But what about running without BMS when discharging and using only BMS for charging since BBS02 has low voltage cut-off. Does it...
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    BMS for 48V battery

    Hi guys. What 48V 13s BMS do you recommend? The bike will have the BBS02 48V 750W kit. Batteries are recycled laptop batteries. I saw this the other day http://www.aliexpress.com/item/Lithium-Battery-BMS-48V-13S-PCM/1342900858.html. Anyone with experience with this particular BMS?
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    Recycled 18650. How do you test them?

    Yes it is a fake. Cheap yes $30 :)
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