[jhautz]

I was running a rusty on 3s lipos capable of about 60A constant and they were fine. I wasnt running a mamba though. It was a Feigao 9L geared for around 50mph. The higher KV motor might be a little harder on the batterys than my setup.

If you can swing a 2s or 3s 8000mah TrueRC pack I think you will be happy with it and the performance. Make sure you get a balancer or a balancing charger and balance the pack while you charge it.