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  1. D

    Disconected Pole Audio Loud Speaker Cable Connector

    Hi, I have this connector on my charger (https://www.amazon.com/Keilton-Audio-Speaker-Cable-Connector/dp/B06XQSV1CK/ref=sr_1_fkmr0_2?s=musical-instruments&ie=UTF8&qid=1506204121&sr=1-2-fkmr0&keywords=4-Pole+Male+Speakon+Speaker+Cable+Cord+End+Connector). Unfortunately, I managed to disconnect...
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    Charging e-bike in swiss Alps

    Hi, not sure which category this fits, so if unsuitable tell me. Has anyone been to swiss Alps on his own ebike? I am going within few days and don't know what to expect in terms of charging the bike from available outlets. Are there any available along the way or is it necessary to use...
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    Bafang SWXH 250W rear hub motor disc brake rubbing

    Hi I have the Bafang SWXH 250W rear hub motor. The disc brake is rubbing. Do I need to use the "spacer" as pictured and will it likely help stop rubbing if I do?
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    Bosch Drive Unit motor with 48V battery?

    Hi, I have a chance to buy "Bosch Drive Unit High Performance Bracket motor" cheaply, but will it run with my 48V Liion battery (max output is 58V)? If not, is there any way to make it run on 48V? The motor came from Haibike XDuro rx Radically electrified bicycle. I post a picture from the...
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    Best voltmeter for 48V battery

    Hi, I have 48V (maximum can reach circa 56V) 15.5 Ah Li ion battery. Could anyone suggest best voltmeter to measure capacity of my battery (as I ride) as accurately as possible? Thank you, David.
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    48V battery for 2000W motor

    Hi, I am looking to buy a 48V (circa 15ah) battery for 2000W motor (9c) and can't seem to find anything adequate. Any suggestions? If it came with guaranteee from a respectable brand only better. Shipping would be to Czech Republic. Thanks a lot!
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    Buying used Chevrolet Volt/ Opel Ampera

    Hi, I would like to purchase 2011 Chevrolet Volt/ Opel Ampera. I am worried about the batteries on a car with 140 000 km. Any experineces, should the battery be fine? Is it worth buying used Volt at this mileage? Any clue on how much are the replacement batteries for Volt/Ampera? I would be...
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    Insulated crimp terminal for battery extension cable?

    Hi, can I use this to extend my battery cable from the battery to the controller? http://www.maplin.co.uk/p/maplin-insulated-crimp-terminal-butt-splice-yellow-ml87u I have 1500W controller. Will this thing be able to handle the power or do I risk damaging the controller if I connect it this way...
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    Sunwinn 1500W controller wiring with 9C hub motor

    Hi, I just bought this controller : http://www.amazon.com/Sunwin-Electric-Bicycle-Brushless-Controller/dp/B00DBM9HSK Is anyone here running it with 9C hub motor and would be so kind to tell me the wiring combination (hall and phase)? Thank you so much!! :)
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    Which sensorless controller for Bafang SWXH 250W

    Hi, I am currently looking for sensorless controller for Bafang SWXH geared motor. Can't find many for geared motor sensorless. Any advice? Ideally, has anyone any experience with one controller so as to be sure that it will work with it? Thanks!
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    9C hub motor with 1500W sensorless controller?

    Hi, I would like to put as much as 2000Watts through my 9c hub motor. The problem is gonna be the phase and hall wires that could get burnt. Would it be possible to use senseless controller like this one -...
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    Toyota Prius 2008 battery upgrade

    Hi, we have in the family an older Prius (2008) and I was thinking - is it possible/ have anyone done, an upgrade on the battery on the second generation Prius to extend the range it can travel on electric motor alone? Also this car has a limiter that allows it to travel on electric motor alone...
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    Controller connection advice

    Hi, sorry need a simple advice - how do I connect a controller that has only two cables black and red to a battery that has two reds (one smaller to start the battery up?) and one black? Is it possible, how?
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    100% waterproof controller case?

    Hi, I have recently water-damaged controller by riding in a storm. It seems that no matter how hard you try to protect it, in a rain storm, you will get some water inside. So my question is - how have people solved this? Is it possible to build or buy some 100% waterproof case for a...
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    Broken 9FET Lyen controler - further investigation

    Hi, I have water damaged the Lyen Controller. It blew mosfets (- blue series), so I had them replaced (just the three of them) and I also replaced two big capacitors there - they looked damaged also. Motor now runs with the controller, however it is not perfect, the motor makes much more noise...
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    Nissan Leaf with electric generator?

    Hi, I am quite impressed with the new BMW I3 that has the option to recharge the battery via smaller petrol motor during ride. Do you think it would be possible to create something similar in say normal Nissan Leaf so it would become also long-distance capable? Any ideas, previous projects...
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    Cheap controller for 9c hub motor?

    Hi, I have recently water-damaged my brand new Lyen controller (9 FET). I am currently looking for some cheap (chinese) alternative that I could use during the winter and not worry about damaging it again. Would controller like this work with 9c hub motor...
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    Mosfets repair Lyen controller

    Hi, I have 9 MOsfets Lyenn controller which I have blown 3 mosfets on - blue one is broken after test. Is there any guide on how to repair them? Do I need to solder them from the bottom first to loosen them or how do I start to get them out and how do I get them in? Thanks a lot!
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    How to test faulty throttle?

    Hi, my motor stopped working. I did hall test and it works fine. Is there any way to test the throttle (as it is my suspicion it might have died in the rain) with voltmeter? Also, how to test if the controller is broken? I have this throttle -...
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    Electric car for around 15 000 euros?

    Hi, just a general question - is buying the Nissan Leaf used the best available option or is there anything that could compete with it from the DIY market - like for example building my own electric car on a basis of old Porsche 924? Is it worth it, or is buying Nissan Leaf just best option for...
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    9c hub motor right sound?

    Hi, does this sound like I have the right hall and phase wire combo? https://youtu.be/2YkruRkhtbM Thank you! I really can't tell as I don't have any previous experience with hub motors and how much noise they make..
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    Testing hall sensors INSIDE hub motor (bafang)

    Hey guys, can you please just confirm that I am checking the hall sensors the right way - inside the motor? As you can see from the pictures I cannot tell which colour is which sensors - therefore I have no way of knowing which to replace.. How do I test it inside? I have measured from the...
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    Wrong wiring - hub motor damaged??

    Hi, this is Bafang SWXH 250. Does it look like I damaged it already by wrong wiring combination?? What is the damage? I am worried about the small black spot you can see on the photos..
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    Controller and motor - how to connect wires?

    Hi, is there a way to connect the motor and controller if the colours for controlling the motor do not match? I don't know if they match, I guess not, cause if I connect them right, it does not work.. Controller is not supposed to be with this motor, so I am just trying to make it work...
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    Mid drive kit 1920-3000W bottom bracket bent

    Hi, does anyone have experience with this kit? http://www.turbobikekit.com/cyclone-waterproof-geared-electric-ebike-kit-1920watt-3000watt-36v-60volt?filter_name=3000 I have only had this kit for about a months and I have already bent the 190mm bottom bracket- probably on one rather small (like...
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