Originally Posted by TexRacer
Wevie and Felow R/C Car Racers and Bashers
MitchellB. is correct.
12C is a NO NO for racing and EXPECIALLY bashing. In racing we usually race for 5-10 minutes at the most.
Bashers are actually HARDER on these packs than even racers. Running full out for 10-20 minutes at a time on cement where there is no give.
12C rating is not very good. Maybe with a stock motor and limited to 8 minutes of runtime.
YOU WANT a rating of 20C,22C,25C
Hope this helps.
There's always an exception though. A higher capacity pack, such as an older Maxamps 8000mAh pack used to have a 12C rating. With a pack of that capacity, 12C is no problem at all.
However, you are correct, 20C should be a standard minimum for anyone buying packs to bash with. The problem is that there is no standard between lipo manufacturers as to how bad the cells sag at that C rating. For instance, one manufacturers cells may remain at 3.6v/cell, while another unscrupulous manufacturer may have cells drop to 3.0v/cell or even lower at their C rating. My recommendation is simply to stick with well known pack manufacturers or companies using cells specifically from Enerland or Kokam.
And since I completely went around the topic in my last couple of posts in this thread...if you want to buy Lipos for your sons' Rustlers and not spend big money, Maxamps is about the only company I would trust. Even then, you'll need to unload your wallet a bit if you plan on buying 3S packs. Their most inexpensive 3S Lipo for a VXL is $115. Outside of them, I'd highly suggest the packs due out soon from Trakpower...a 3S 5400mAh hard case Lipo specifically for the VXL vehicles. The only drawback most will see...the cost of $170/pack.
That being said, unless your sons are really good drivers or you don't mind them breaking a lot of parts, I highly suggest 2S packs instead of 3S. A stock VXL Rustler on 2S Lipo will do 40mph out of the box. That's more than enough speed for most anyone bashing, especially kids. If you have any specific questions regarding batteries for the VXL's, I'll be glad to answer anything I can. I have 2 VXL Rustlers and a VXL Stampede myself and they get run on nothing but Lipo.