RE: Volcano EPX Pro problem
The stock batteries are junk. The novatech esc and motor have the ability to pull a lot of amps and low end NiMh packs can't deliver the required power.
Get yourself a 5000mah 2S lipo and a decent charger. Both can be had for under a $100 total. The redcat cars are not bad but the stock batteries, charger and radios are not the best.