i started getting tired of the speed of my wildcat and i had some frenzy motors from a mlst i had. i put them in with the esc and reciever that came stock in the mlst and gave the boat a test drive. it was much faster but after 5 min. my boat suddenly stopped. my girlfriend pushed me in with her boat and when i opened the hatch i noticed my battery and connector to the esc was melted.

i used the battery that came with the wildcat.

can someone tell me what i did wrong i'm thinking i didn't use the right battery for the esc or something like that.