Truck comes with esc set to auto-lipo and 3.0v/cell for the low voltage cutoff. Get either the Castle Link or new Castle Field programming card and set the LVC to 3.4 or 3.5v/cell to give your lipos some safety factor.
When you see truck start to slow down, stop and go re-charge teh lipos, they'll last longer if you do not run them to tyheh lvc every time you run.
As mentioned, velcro straps on the batt boxes are a must - the boxes will come open otherwise and cause poss damage when lipos come flying out. TCS has some very good straps, they are the ones I'm using.
TCS has great prices on SAV parts, you won't find lower anywhere else. I get all my parts from them.