I wish I did have Maxbull lipos to analyze but I never bought any and I don't wish to either. Next lipos I will analyze will be a pair of Zippy-H 5000 3S 20C constant, the very first lipos I bought. And a pair of Flightmax 3000 5S 20C constant. Those are the ones I accidently plugged in series and ran 10S

They got really hot when that happened but did not puff. They were soft to the touch though so I'm anxious to see how bad they are

They still run without puffing and give me tons of power.