20c VS. 25C
 

Heya, I've got a choice of two batteries for my Tamiya Mini and TT-01. The Mini is running a silver can, and the TT-01 a black can motor. Pretty basic stuff.

What I'm wondering is if it would any difference at all, given the relatively low draw of these motors, if I were to use either a lipo with a 20c rating vs. a 25c rating.

I can't see it making a difference, but I don't know batteries all that well.

Thoughts?

Jim

Im not sure what a "black can motor" is, but a typical silvercan 540 wont draw enough amps to make the slightest bit of difference.

I used to think the same thing until this past weekend. We were running back to back practice using a 27t brushed motor and a 20C Orion followed by a 35C IB. Both are in great condition and both weigh the same. The 35C was consistently faster every run.

So.. given the choice, I would go for the higher C rating.


Jerome :tire::tire:

Check out the new Xtreme RC magazine out now as they have a pretty good article on the C rating of lipo batteries.

I will have to have a look at that article.

When I'm referring to silver can, I mean Johnson/Mabuchi 540 motors. 27t, sealed end bell, cheap as cheap can get.

By black can I mean, Mabuchi 540 "Sport Tuned". 23t, sealed end bell, almost as cheap.

With the silver can I'm either running a stock Tamiya TEU101BK or Novak GTX speed control.

With the black can I'm running a stock Tamiya speedy.

Since lipos provide pretty much equal voltage for a given number of cells, I don't think voltage is as much of a player as it is with NiMH.

Jim