Results 1 to 6 of 6
  1. #1
    RC Qualifier
    Join Date
    Mar 2011
    Posts
    417

    battery or motor issue

    i got a new tacon 3700kv motor in my rustler heres the problem im having when i run this motor on my 2s 20c 5000mah pack its runs for about 2 minutes the it studders and lose power stop then i check the pack and its still just about fully charged then i put my 4s 30c 5000mah pack in and it runs fine i was thinking it was the 2s pack but then i swap motors put in my 2150kv 4pole on the 2s pack and it runs fine any idea whats going thanks for any feed back
    EMAXX 1480kv 6s
    RUSTLER 2150KV 4S

  2. #2
    RC Champion
    Join Date
    Jan 2013
    Location
    Buffalo NY
    Posts
    1,330
    If the 30C pack runs the new motor fine...perhaps the fact that the other pack is only 20C has something to do with the problems it's giving you

    What C-rating does that new motor require?
    Make it idiot-proof and along comes a better idiot

  3. #3
    RC Qualifier
    Join Date
    Mar 2011
    Posts
    417
    it doesnt say what c-rating
    EMAXX 1480kv 6s
    RUSTLER 2150KV 4S

  4. #4
    RC Champion
    Join Date
    Jan 2013
    Location
    Buffalo NY
    Posts
    1,330
    Quote Originally Posted by momort View Post
    it doesnt say what c-rating
    Well, that 3700 motor is a 122 amp application.

    122/5 amp battery = 24.4C minimum.

    Your 30C pack is enough. But the 20C pack doesn't seem to be cutting it!

    Hope this helps!
    Make it idiot-proof and along comes a better idiot

  5. #5
    RC Qualifier
    Join Date
    Mar 2011
    Posts
    417
    i found the issue i had to switch my motor wires around this new tacon motor is great my rustler is a street build lowered only sits a 1/2 inch off the ground on 2s 25/76 gearing its pretty fast motor is really smooth and after 10min of running temp was 105 degrees. in a review where i got this motor the buyer said he thinks this motor is a 4 pole but its listed as a 2 pole i spun the rotor and it feels like a 4 pole but im happy i solve my problem
    EMAXX 1480kv 6s
    RUSTLER 2150KV 4S

  6. #6
    RC Champion
    Join Date
    Jan 2013
    Location
    Buffalo NY
    Posts
    1,330
    Glad to hear it.
    Make it idiot-proof and along comes a better idiot

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •