Search results

Date Relevance Most replies

  1. S

    Melted my 36v motor - any tips on rewinding?

    Thanks for your input, it is indeed a unite motor. I didn't realize RPM is an issue, I thought current&heat was the main worry... In that case I sould get a new motor, because when running the old one@48v I reached the speed I wanted - about 40kph (25mph)... and it's obviously not econmical to...
  2. S

    Melted my 36v motor - any tips on rewinding?

    Hi, I run a mid motor kit from gng electric, just the small 36v/250w motor. However, I upgraded to a 48v/500w battery & controller setup... I melted the windings in the motor. When opening the motor you could see that the insulation material between the wire windings and the armature had failed...
  3. S

    Beware American A123 prismatic cells!

    Well, so they die when they are clamped together. So lets not clamp them together hard when we build bike packs :)
  4. S

    What battery chem did they sell me?

    Didn't know that about lipo/lico, thanks. Don't like the sound of that capacity reduction... hmm, I guess time will tell, I hope mine holds up OK. loving the power to weight rato!
  5. S

    What battery chem did they sell me?

    Thanks amigafan, that is most likely it! Seems to be the right weight etc. Kinda happy if they are not lipo, I live in an apartment and dont really have a safe place to charge them... btw, It's supposed to be 13s, but it's hard to see. The charger is supposed to cut off at 54.6v per it's...
  6. S

    What battery chem did they sell me?

    Hi guys, after much agony I finally bought a 48v 10ah battery, the "frog" case model from conhis. http://conhismotor.com/ProductShow.asp?id=210 When it arrived I was shocked that it weighed so little 3,4kg (7.5lb) so I opened it up. It is supposed to be 5p13s, and I thought it to be a Li-Ion...
  7. S

    12s2p LiPo pack kit including 12-channel BMS "Lite" Board

    Assuming cost isn't prohibitive, I definately want one too. Although I would much prefer the packaged plug-n-play version, in a stressful life I just want to be able to chuck my lipo pack on a PSU, and be done with it. Let the BMS sort it out.. :)
  8. S

    overvolting & shunt mod - how many watts?

    Thanks drunkskunk! I was uncertain on how watts-volts and everything relate, but now it seems quite clear. I'm going to start with a 48v upgrade, as that not only gives top speed (aiming for like 35kph or so) but also some extra low end grunt. After that we'll see if I can keep my grubby little...
  9. S

    overvolting & shunt mod - how many watts?

    Hi, I'm new to e-bikes, but I just converted my standard Giant bike (french) to run a mid-motor system (http://www.cyclone-tw.com/newkits.htm) running at 36v@250w. For now it's powered by Bosch fatpacks, as I have those through my job. My question is, I'd like to up the power a bit, right now...
Back
Top