Still have your truggy?
I use Gens Ace 2s 40c 5000mAh batteries from Hobbypartz.com about $30-35 each depending on the sale of the day.
No major changes on mine out of the box. But it wasn't too long before I broke a rear hub. Went to gpmpartz.com and picked up an aluminum set. No issues there since. Then I cartwheeled her about a dozen times in a row and when she stopped the left front wheel kept rolling. All the way accross the yard. Ahhh, I was thinking instantly. I ended up breaking the tiny axles on the front. I just ordered all the parts to convert to true 17mm hubs. We'll see what that does for her. Other than that I know to check all fastners for tightness and do that often. Oh, one last thing I did but since the axle is broken and waiting for parts I don't know what it's like yet. I swapped out the 15t pinion for an 18t. Alot of guys are saying the 18t really wakes the truggy up and the motor/esc stay cool. I have never had my motor get more than luke warm. The esc gets no than warm. Never hotter.
Hope to hear from ya.