yes my sky lipos i run in my pede are 2s 40c 5000mah...i actually wanted the gensacearespammers but they were out at the time...i have a bunch of small gens aces and sky lipos for my mini crawler and they all perform fantastic...and no the stock set up on a vxl pede will for sure handle 2s batteries...i think 3s is the max on it though...ill say this though...after running it on these 2s 40 sky batteries i dont even see a need for a 3s...its so freaking out of control with the 2s in my opinion a 3s is just unnecessary....that said...I'm sure ill order one before to long...get a 2s and see if your happy with its performance...I'm sure you will be..mine is a beast on 2s and it runs cool as a cucumber...now this is on a 2wd rig...the 4x4 may benefit from a 3s i don't know since i dont have one....but i would suggest the 4x4 over the 2wd....the 2wd with all that power takes some getting used to...