new set up with battery smoke

[HotnCold]

If you are saying - that right after you connected the batteries they smoked - you didnt even drive the truck - i can say that i have never heard of that - Did you make sure the connectors are right on batteries, speed controller as well. (Never hurts to double check) Do you have any other batteries to try out - did both batteries smoke -maybe one cell - I guess anything is possible. I would pray that the only thing that smoked are the batteries. Get them new ones, solder them up good with deans connectors and let us know what happens... Good Luck