Results 1 to 6 of 6
  1. #1
    RC Qualifier
    Join Date
    Jan 2014
    Location
    Ohio
    Posts
    809

    Do I realy need 30,40,50 c batterys for stock spartan at 4s?

    I see many different battery's used. many insist 40c is necessary. What do i really need for a stock spartan at 4s? What happens if i use to small a C ratting?
    I have only had the boat in the water once with 4s 20c battery's for a short run (2 1/2 min.) and the battery's , motor, and ESC were all cool Thanks; Don

  2. #2
    RC Racer
    Join Date
    Oct 2015
    Location
    Missouri
    Posts
    176
    Don, I believe the higher the c rating the less stress on the esc and motor. The esc and motor are power hogs and lower c batts can't deliver enough power fast enough so they get hot from under amping.

  3. #3
    RC Qualifier
    Join Date
    Jan 2014
    Location
    Ohio
    Posts
    809
    Thanks; When I buy new ones i will get higher C. don

  4. #4
    RC Turnbuckle Jr.
    Join Date
    Nov 2006
    Location
    USA
    Posts
    3,138
    Quote Originally Posted by dontrinko View Post
    I see many different battery's used. many insist 40c is necessary. What do i really need for a stock spartan at 4s? What happens if i use to small a C ratting?
    I have only had the boat in the water once with 4s 20c battery's for a short run (2 1/2 min.) and the battery's , motor, and ESC were all cool Thanks; Don
    in my opinion it matters what makers your looking at
    some 40c packs are better than others 60c packs..
    but yes higher C rating have less voltage sag than lesser C rated packs..
    FE boats are the most demanding of any other form of RC
    some of my boats pull around 185amps constant during a race
    First MiniSlash
    HK6XL Revo 4s 60mph Amsoil dealer

  5. #5
    RC Qualifier
    Join Date
    Jan 2014
    Location
    Ohio
    Posts
    809
    What would a stock spartan at 4s draw at full throttle? Thanks; Don

  6. #6
    RC Turnbuckle Jr.
    Join Date
    Nov 2006
    Location
    USA
    Posts
    3,138
    Quote Originally Posted by dontrinko View Post
    What would a stock spartan at 4s draw at full throttle? Thanks; Don
    that's a good question bud..
    depends on prop used and how wet the hull is running..

    if someone knew the runtime at WOT I could calculate some things
    First MiniSlash
    HK6XL Revo 4s 60mph Amsoil dealer

Posting Permissions

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