Some more questions... which one?

[Finnster]

On the TrueRC 8000s:

Be sure do double check the specs and they layout you are looking at. These cells are good, but they are wider than normal batts @ 50mm, ie they will not fit in std trays. 5S 8000 is quite heavy as well. I think mine is ~950g.

For a 4s operation, I would go w/ their 6400packs. These offer me great runtime, ~1hr bashing around, and 20-25min+ hard running. They are also a std size so will fit a bit easier.

5S/8XL is stupid crazy power in my Revo. Can't imagine a buggy on it.... I would go to 4S, and prob even a 9XL for more reliabilty, you will not be diassapointed.