hi can some one tell me a little about lipos i blew up 2 lipos in my aero marine cat i run a 2280 lehner motor with a shultze 40 160 speedy with 2 5s 40c 5000mah lipo and a 250 pranther prop. one lipo had 3 runs and the other about six both had one cell blow out the side. do i need to run them in before giving the boat full speed or are the lipos ready to go full speed at new?

where and what would be the best water proof esc (speed controllers) around 160 to 200a? also would like to hear from some one that has made there boat waterproof without having to use tape?