Low transmitter batteries?

Too much pull on the 4s battery? How many C is it?

Low instantanious voltage dip?

I have a hobby wing 120A v3.1 ESC. And a 5000mah 2s pack.

I run it all out sometimes, full turbo, and once in a while I will get no throttle for a second and then it comes back. This usually means that my voltage momentarily dipped below the threshold set for auto battery cutoff. I can run the car for a couple minutes or a couple of seconds before it just cuts the throttle completely and I am left with only steering.

For me, when it happens. I know my battery is near auto cut off voltage. I usually drive it back to the garage and throw the battery on the charger.

May I ask, how many minutes you get before this happens? And also, how long do you charge your batteries for at what amperage?