OK, I know that Nuttcaze recommends 3000mah 5 cell batteries with 25C rating, but I am a bit tight on funds at the moment.
I do have, from a previous use, a couple of 4000mah 5 cell 15C rated batteries.
Could I use them in my ES600? Will it just mean my flights will be shorter.
Bearing in mind, I will only be hovering, will they be OK?