Quick MMM Combo question

[Shark413]

The reason I was asking was because my bro got his MMM combo last week for his jammin CRT. I told him he better check the ESC settings before he ran it and I would swing by in a few days to check it out, but apparently he couldn't wait for me so he hooked it up and ran it in his yard. I get a phone call, and he said his lipo is dead and I asked him if he checked the ESC settings, duh, no lipo cut off. Three of the four cells on his 4s NeuEnergy lipo were below 3 volts. He said he thought it came set to auto lipo as a default and that why he ran it without checking.