The new esc isnt here yet.

The car runs perfect with both batteries untill the batterypack lowers to 7.6v (checked with meter after car fails to run) so im checking the batteries when they are not under load. Is it possible theres nothing wrong with the car and its just draining the battery in 1-2 minutes time?

Its a drift car so the tires are spinning on the carpet at high rpm.

I just dont know if when the battery is low the car is suppossed to jerk like its cutting out or theres a short or something.

When your battery is near dead and you have the throttle down all the way...should the car just creep around slowly or cut in and out jerking?

Ill put a fresh charged battery in.... car will run fine for 1-2 minutes. Then it will cuttout and start jerking. At this point if i go full throttle it jerks and cuts in and out but if i turn the throttle gain down or just barely push on the throttle it will drive around very slowly for another minute or so.
If i set it with wheels off the floor with it in the air it will also spin the wheels slowly but if i give it full throttle it cuts in and out and sputters.
Ican see the light on the esc cutting in and out as well flickering as it studders.

when battery is pulled it is stil 7.6v

Is this normal behavior?