RE: Nylint 1/6th scale Rock Crawler
I've run both of mine in some pretty hard core rocks, so bad that the tires get jambed and won't turn. I went for almost a half hour and hadn't killed it. You might want to contact the manufacturer about the battery or the charger possibly being defective. They seem to want to stick by the product. It may just need to be charged again. It appears to be some sort of peak charger, and may have shut off prematurely. Since it its a lead acid battery I think you can "top off" the charge when ever you want without any battery memory problem. Some one correct me if I'm wrong.