Search results

Date Relevance Most replies

  1. J

    KT controller and direct drive motor, suddenly vibration and noise

    Hi guys, all of a sudden, my bike showed some problems today, maybe you can help. Relevant information: I have this controller (converted to IRFB4110): http://www.groetech.de/index.php?main_page=product_info&products_id=849 Motor: Heinzmann Direct drive front wheel Battery: 16s LiFePo (50V)...
  2. J

    KT controller defective, but why?

    Hi guys, I believe that my KT controller gave up the ghost today, but I do not know why or what exactly happened. Maybe you can help. First, the details: I have a 20" bike, running on 16s A123 (~50V), with a Heinzmann motor (rather large direct drive). Gallery: https://imgur.com/a/tTuFe I have...
  3. J

    Verified information about Puma winding number <-->RPM relation needed

    Hey guys, I recently finished my ebike. It's a Giant Revive with 20" wheels, a 16S LiFePo battery (51V) and a Puma (with 225RPM/36V). This setup is a bit too fast for me, I want the freewheeling RPMs of the motor to max out <25km/h. Right now, the freewheeling speed goes up to 34km/h. A Motor...
  4. J

    Building a 2-stage LiFePo charger, good / feasible idea?

    Hi guys, I'm starting to finish my second e-Bike, and I still have the charger left over from my first one. I modified a Meanwell power supply for 3A charge current and an adjustable voltage. The pack I'm going to charge will have 16s5p A123 cells. The BMS I have is the one in the first image...
  5. J

    Questions concerning S12S / S06S controllers (options, current control, etc)

    Hey guys, I'm planning to build another E-Bike for several years now, since the last one I built was stolen. The complicated setup of the controllers I knew back when I started the build has always been a bit of a mental demotivation. But today, by chance I read about the S12S and similar...
  6. J

    PAS sensor connection

    Hi guys, I was thinking about purchasing this kit: http://www.power-e-bike.fr/de/rh205s-/93-kit-motor-hinten-ohne-die-batterie-rh205s.html It's a 9C with an infineon controller. I already run an infineon controller on my push trailer since 2009, so I am familiar with the basic setup. What I...
  7. J

    Possibly the best <60V charger for <$60

    Hi! Although I really like my Ping battery, I consider the supplied charger a kludge. It makes the impression that all components are permanently overrated. I had to connect the fan to an external 12V power supply to make it run at reasonable speeds, for example. In a nutshell: I needed a new...
  8. J

    Push trailer, I'm building one, too.

    Hi! When I was thinking about eBiking last year, I figured permanently electrifying my bike would make it too unflexible. Therefore, I started building a push trailer early this year. The basis is a steel frame from eBay. I did not like the bag inside that much, so I bought some 1mm aluminium...
  9. J

    Charging Ping Battery with reduced voltage+Balancer question

    Hi! I just recieved my Ping battery (48V 16Ah) and the included charger. :D Now I have learned, that LiFePo4 should only be charged to 3.6V/cell. This pack has 16s cells, and the charger has 60V at its output. This makes 3.75V/cell. A little much, huh? So I cracked the case open gently, and...
  10. J

    What do you think of this goldenmotor setup?

    Hi guys! I think about converting my bike as an eBike later this year, so I could use some opinions of the professionals. I determined that 500W is about right for me, so I guess I will go with the Goldenmotor hub motor. http://www.goldenmotor.com/ I would take the 28" version, but without...
Back
Top