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    Resurrecting an Ultra Motor A2B Metro with 20S power

    I am running the full 40A on the crystalyte controller. The temperature datalogger was separate from the controller and was only being used as a display for current winding temps. I am not sure the Crystalyte is the best solution if you want to start without pedaling first. I chose sensorless...
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    Resurrecting an Ultra Motor A2B Metro with 20S power

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    Resurrecting an Ultra Motor A2B Metro with 20S power

    One funny story: A couple of months ago I was on the way home from a downtown round trip and on the last straight road before getting to my neighborhood I noticed I was being followed by a San Antonio cop so I went only 20 mph and used up my whole lane as I always do. I got into the left lane to...
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    Resurrecting an Ultra Motor A2B Metro with 20S power

    I wish someone with a lot of ebike experience (like Guru class) could ride this thing. I wonder what they'd think of it and what could be done to make it better. I am forever wondering if I missed something obvious. I always wonder about these things when I build them alone, without help...
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    Resurrecting an Ultra Motor A2B Metro with 20S power

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    Resurrecting an Ultra Motor A2B Metro with 20S power

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    Riding for free with solar charging!

    For anyone watching this thread I wanted to mention that my solar installer gave me two 235W panels that were damaged cosmetically. I asked him what he would say if anyone came to him wanting a discounted "big" panel. He said that installers almost always have blemished panels or...
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    Riding for free with solar charging!

    I will be moving the sealed lead acid batteries inside my house in the next few weeks. I will be running the bike charger outside and my office equipment inside. I was aware of keeping the batts within a 70-80 degree F window.
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    Resurrecting an Ultra Motor A2B Metro with 20S power

    The charger was about $200 US and the batteries were about $520ish. I would never run with the iCharger onboard since I always charge on solar at home and the rear battery case is heavy just with batteries alone (17 pounds). I do not have a BMS. I bulk charge the 10S Zippys to 40V and discharge...
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    Resurrecting an Ultra Motor A2B Metro with 20S power

    I have another motor apart in my garage. I will take a look in the morning to try to answer your questions as an edit to this post. I'm not sure where you are seeing a big aluminum ring. The magnet ring on the periphery is steel. -Jim
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    Resurrecting an Ultra Motor A2B Metro with 20S power

    Motor works fine but this is my very first ebike so I have nothing to compare it to other than BMW motorcycles. Steering on the Metro at 37mph is "lively" but fine if you keep your hands on the bars. There is no soft start but the sensorless controller pretty much requires me to pedal for five...
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    Resurrecting an Ultra Motor A2B Metro with 20S power

    After I removed the spokes I used a 12" long 2x2 pine board and a ball peen hammer to tap one of the the halves away from the other little by little until it popped off. I did the same for the remaining case half so that I could replace bearing in that half, too. Just make sure that when you...
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    Resurrecting an Ultra Motor A2B Metro with 20S power

    Yes, it is inside the hubmotor. -Jim
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    Riding for free with solar charging!

    Only a very small amount of the things I do are what you would call a "good" idea. I just want to see what happens.
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    Riding for free with solar charging!

    As an experiment I'm gonna charge an RC Lipo off of my Kyocera solar panel today. I'm gonna feed the 20V directly into my iCharger and bypass the MPPT charge controller and 12V battery. The iCharger can take an input of 8V to 38V so I cannot imagine it not working but it will be interesting to...
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    Riding for free with solar charging!

    OK, leaving charging while driving a side, say i go to work, and spend there 8 hours. So say 60W solar panel would top up my battery 480 watt hours, say 400 and that is a quarter of 72V 20Ah battery capacity on 40km range thats 10km I wonder if there is something else than rc charger for that...
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    Riding for free with solar charging!

    In my opinion, charging while riding will not net enough electricity to be worth the extra weight and drag. Orienting the bike to get good solar exposure will be rare and even if you did you would need a very large panel to make any dent in your immediate usage. Solar charging as far as my small...
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    Riding for free with solar charging!

    Unfortunately, I do not know how the mppt/pwm chargers work exactly or what is inside them. I would assume that they will work fine with the stated specifications without having to modify them. If I were you, I would try to use them stock before I started fiddling with them. The 15A or greater...
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    Riding for free with solar charging!

    Buying green power from the utility is an obvious choice for anyone with the extra funds who consider themselves "green" minded. I have been on CPS Energy's Windtricity program at 100% for the last 5 years. All of my monies paid for electricity is derived from the west and south Texas wind...
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    Riding for free with solar charging!

    I added some more info to the first post about my home office running off of my off grid solar system. -Jim
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    Riding for free with solar charging!

    http://genasun.com/ I use one of the GV-10 now with my office solar system. I very highly recommend them for maximum harvest! They are American made, too!
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    Resurrecting an Ultra Motor A2B Metro with 20S power

    Thank You. Here is my thread on solar charging: http://endless-sphere.com/forums/viewtopic.php?f=14&t=41991
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    Resurrecting an Ultra Motor A2B Metro with 20S power

    Hey y'all, After reading a bunch here I went and bought a broken Ultra Motor A2B Metro off of Craigslist a few months ago. The previous owner ran over something in the road that got wrapped up in the rear hub and it shorted out a new motor he had only had for a month or so. I watched it sit...
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    Riding for free with solar charging!

    Edcastrovalley, I wish my electrical usage was so low. I am working on the big draws one by one. I changed my pool pump for a permanent magnet DC type from Speck in Germany and cut my wattage from 1830 watts to about 132 watts, a huge saving (Speck EcoM3). My pool cleaner went from using a...
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    Riding for free with solar charging!

    ZOMGVTEK, You are correct in your assessment that charging the bike from the grid is the cheaper way to go BUT I already had the solar panel and batteries prior to owning the bike for my R/C charging so all I had to do is buy the iCharger 3010B and MPPT charge controller to complete my setup...
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