running different brands of lipos is ok
 

I know its not but where is the descusion on it ?.....I dont remember WHY?

As in running one polyquest lipo with one hyperion lipo in a series? No. They need to be the same cells. One pack will be pushed harder then the other and get pulled under 3v/cell and the pack will be damaged.

Like metal said but, heres how it works with me ( i will not be sued and deny all this) You can run any lipos together a 15c and a 35c, chances are you will mess up your esc. if you dont you just cant rely on the esc to tell you when to quit. When you see 1 lipo puff up like an elephants butt its time to call it quits and grab the next ones. Not that they are toast, let them sit "depuff" for a few hours (maybe a day) and charge them up in a lipo safe bag. If you want them to work in a proper manner, yes same amount of cycles through them, same c, and if really nice charge them as 1 lipo in an 0610