Not sure what to do here. I bought my sons a granite to run around the local field and baseball field. We are using 3 2 cell lipos and also the battery that was included with the truck for my younger guy. Before I start, I will say when changing between the lips and the stock battery, I change the pin settings on the ESC. Now that thats out of the way, the truck will just cut power and the esc will just blink red. I thought at first it was the Lipo batteries, but I confirmed they had enough juice in each cell. Each battery was at the 3.96 per cell when the power cuts out on the Granite. The same thing was happening on the stock battery too. I doubt this thing is over heating as its only in the low 50's here. Not sure what else to look at. This truck has literally only seen 5 battery packs since it was bought on Thursday. Not sure what to do at this point.