ya, I realize there are alot of factors. I know that I would get a solid 15 minutes while using some very very very worn gp3300 (these packs probably have 350 runs through them). So I am confident. Plus I am just excited that I got my first lipo pack for the cars, I have a few smaller ones for the planes, but this is the first for the cars. Very excited, should make the mamba max a whole new beast.