I'm just saying my own opinion, but if you had this with the second one, your wasting your money on cheap china RCs. Maybe move to a name brand hobby grade one, it will be more better in the long run. (Traxxas, Arrma, Losi, AE, Horizon, Kyosho, to name a few)
But if your willing to fix it, try to rebind rx to tx, recalibrate esc, and make sure the battery is fully charged and balanced (same for TX batteries)
And after if it doesn't work, maybe try different electronics.
Looks like a normal 2s lipo, 1400 mah, should be able to last more than 10 mins on a full charge, but it depends on the driving and how much the esc is taking from the battery.
Another thing to note is that it could stop because the esc hit low voltage, or it can be due to overheat (thermal cutoff) either from the esc or motor. Overheating can be caused by no fans, no airflow, driving hard / full throttle all the time, or overgeared.