Power caps

[tcboy1983]

hi was wandering whats the best power cap also the largest i could fit on to
speedpassion or hobbywing esc

also what do the numbers have in relantion to each other from my understanding
the uf number is the amount it can store and the volts is how highest circuit voltage it can take ?

eg say i had 2200uf 16v would i get more power out of a 2200uf 25v
i cant see y it make a difference as lipo batteries work at 8.4 max ?