loss of power for a few seconds?

Midway through a run I often experience a loss of power for a second or so, is this usual?, I though it was due to heat but everything seems cool.

Thanks,

[coolhandcountry]

It sounds unusual. Did it happen any more until the batts was gone ?

Just a few times yer, im certain now its the aa batterys im using though

[coolhandcountry]

Got to watch that. It may decide to run away with you. If that happens i hope you can run really fast. ;)

[Serum]

Those standard AA's are up to no good....

they can't deliver any power.. the esc uses a bit of their power too.