Thanks for all the info. First of all, my boat came in the mail yesterday when i realized that the battery was "mini" sized. It is only about 3.5in long. Also, there are very few websites where i can find it. The weirdest thing is that on probots website, it says that a 30c 1400mah "speedpack" battery is invluded. My battery is a 20c 1300mah "reaction" battery. Anyway, ive been looking all over for a battery with about 4000mah. I found a Venom battery with a universal plug that would be pushing the limit of the size of battery that will fit. I have measured and it will have just enough room. Now Im thinking that it will weigh too much. Would adjusting the trim tab(s) help with that? Or should i put a small weight or something on the inside of the boat on the opposite side? I only got like 10 mins of run time so i definetly dont want another stock pack if possible. And the last thing, Hydro Junkie, if i did that, wouldnt i be giving 6s 2600mah into the esc? I know for a fact that it can only handle 2s or 3s. Thanks again