Battery help please

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As a total noob to this world would someone talk batteries to me in layman’s terms, my FC40 runs a 2200mah, 11.1v 20c and that’s as much as I know so my questions are :-

1, can I run a larger mah ( I.e. 4000 ) battery and will it be better or worse
2, is the 20c critical, as they don’t appear to be too common

Thanks in advance
 
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mah is just capacity, the more the merrier. Just means it'll last longer.
C is the constant discharge rate and even though i'm not really clued up on it, 2200mah 20C gives 44amp, so with a 4000mah you'd be looking more at ~10C rating? Which is maybe why 4000s with 20c are like you say, not too common.

Maybe someone else can explain it better.
 
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Joined
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mah is just capacity, the more the merrier. Just means it'll last longer.
C is the constant discharge rate and even though i'm not really clued up on it, 2200mah 20C gives 44amp, so with a 4000mah you'd be looking more at ~10C rating? Which is maybe why 4000s with 20c are like you say, not too common.

Maybe someone else can explain it better.
Thank you that’s really helped me
 

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