how high should i go on lipo?

[ChRiS]

how high mAh should i use for a align 25A ESC??

[baby_zyklon]

no fixed rule. It all depends on how much flight time you want, how heavy can your plane fly with and also how much current can your batt take. For instance, if you are drawing a full 25amp burst, then you probably want something like 2000mah 15c burst.