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  1. Goethe

    Loosing sync when leaning and warm (HS3540)

    Hi! My HS3540 paired with a sinewave controller stutters when I lean in curves and put on some throttle. When the motor is cold there are no issues. But the warmer the motor gets the less lean angle and less amps it takes to get this problems. If I keep on riding It will get this problem even...
  2. Goethe

    Daisy chain BMS's.....risks?

    Hi! :D I about to move my BMS's out from being in series with the batteries in to braking the main power to a DCDC. I have measured the resistance between the negative balance lead and the In/Out connections of the BMS and it seems to be galvanic separated. Would be OK to do it like this or...
  3. Goethe

    Goethe's Mongoose Pinn'R + HT3525

    Hi! :D This bike I'm building for my 12 year old nephew. I will deliver it as ridable in dry condition and my brother will water and crash proof it later on. The bike is a really sweet ride! I've been enjoying my debug trips so much it's gonna be tough to give the bike away! :D Current...
  4. Goethe

    How to retro-fit halls in a HS3525?

    Hi! :D I put all eggs in one basket and went for sensorless HS3525 motors and controllers for three bikes I'm building. I finally got one of the bikes running but it only works satisfying at modarate amp's. It seems that pulling more than 35A is not possible without the controller loosing...
  5. Goethe

    Rescue low voltage Headway cell???

    Hi I've left my new Headway 38140 in storage to long without charging. Some of the cells are now in the 1,2-2,0 V range. What is the best way to save this cells? The cells are new and have never been used. BR Göran
  6. Goethe

    Crystalyte 530x, How much Amps will they handle?

    Hi! I'm trying to decide what setup I will use at a couple of DH-bikes that I´m building but I need to get more data on the Crystalyte motors that I will use. So what could be better than to get real life testing results from you guy's? :D So far I'm leaning towards 5306, 72V a123, 15-20 Ah...
  7. Goethe

    The "Civil disobedience" 10 step backwards 1 forward...

    Hi! I´ve been lurking around at ES for a while and admiring peoples EV constructions. I´m an automotive engineer from Sweden and the last 10 years been working with combustion engine development at Volvo cars and SAAB. The last year I´ve been working in big scale EV projects and hoping to...
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