Weird Problem With MMM, 1520 motor and Hyperion Lipos...???

[Jahay]

Hi everyone...yesterday i took the truck out to run. Charged up my hyperions and ready to go...

Got to the spot... Plugged my lipos in... turned on the TX, and then the MMM...Beep beep beep... all good... AND THEN

upon trying to accelerate it wouldnt. everything was on etc... but it wouldnt accelerate? It was making a noise as if it was a cogging noise when you barely touch the throttle....

I then picked it up off the ground and throttled... The wheels span but i didnt have much power...

Then i would put it back on the ground and it would do the same thing...

So i swapped the lipos with another set, and the truck worked fine.... I put the hyperions back in and it did the same thing...

After 10mins of messing around and scratching my head... it suddenly started working???? But then randomly it would stop and do it again....

Its hard to explain but considering how many rc users are here, someone must have experienced a weird problem like this???