Lipo questions

[Slimboyfat]

Im looking to infrequently race again at regional/club level when I get the time and just wondered how many Lipos people use per race day?

Do you use one and just top it up after each race? Do you have two or more that you alternate between to ensure longevity of each pack?

How would a single Lipo pack (prob Trackpower 5000mah odd) stand up to 5 top ups per day?

It would be for use in a 2wd buggy, running brushless (prob 7.5 or 8.5)

Cheers