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  1. LHelge

    Maximum current for Turnigy 80-100

    I've built an electric moped by replacing the ICE with a Turnigy 80-100 on an old Puch Maxi. The motor is fitted with SS411A hall sensors and rewinded with double strands of 1.5 mm copper wire for 90 rpm/V. I use a Lyen 12 x IRFB3077 controller to run it from 12s2p Turnigy 5 Ah 20C...
  2. LHelge

    Strange controller problem

    I need some help with a problem om a street legal bike I'm building. I've been trying to run the bike on a 36 V battery, but the BMS cuts off as soon as i connect the battery. Yesterday I tried using a 35 V, 10 A power supply instead. When I turn on the PSU and gradually increase the voltage...
  3. LHelge

    Imax B6 problems

    When I charge my LiPo-batteries I like to keep an eye on them and yesterday I was leaving in a hurry and aborted the charge on my Imax B6. Doing this I forgot to stop the charge before pulling the plug on the battery. The charger gave me some beeps and displayed a connection failure message...
  4. LHelge

    IRFB3006 vs IRLB3036

    I'm about to replace the FETs in a 6-FET controller to create a small but powerful (efficient) controller for a 48V system. My choice of transistors has fallen on either the IRFB3006 or the IRLB3036. As far as i can see the later is both cheaper, has lower gate charge and lower Rds-on but it's...
  5. LHelge

    Creaking 9C rear wheel

    I've just put together my first e-bike based on a front suspension MTB frame, a Nine Continent 2809 rear wheel, Infineon 36-48 V 27 A controller (i think its 12 x 75NF75 FETs) and 12S Turnigy LiPo. I have ridden it to work for two days now which is about 12 km (7,5 mi) both ways. The bike is...
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