wow didn't expect that how did it happen

[Maxxman]

I gave my bl maxx its first run and pulled a wheelie :) and landed on the roof and bent rear body post. flipped it onto its wheels and nothing so looked down and heard a hissing felt the batteries and were boiling hot after less than a minute.

I managed to desolder the plugs on the quark and batteries and they also
leaked over the chassis and were reacted with the polycarbonate shield, (that took a while to figure out), which i used to protect the bottom of the g-maxx chassis from scrapes, it just trapped the leaked battery stuff, not sure what it is, as it did somecrazy thing to the chassis.

e-maxx had 2 ib 7.2 3800 (i was just testing it) quark 125, single speed, feigao 8xl, gearing 20/51
UE drivetrain and strobe slipper.

i think that it happened because of the amp draw but i am not sure.
is it a good idea to use any NImh or Nicads with this set up and if so will it desolder the connectors like it did this time.