which q-brain to buy?

[alan081954]

i have a quad i put together this summer and it keeps flipping. i was told one of the esc has gone bad. it has 4 of the Hobbywing SkyWalker-40A 2-3S bec 3A@5v instead of buying 4 new ones i would like to go with a q-brain but do not know which one to buy. can anyone help? i am a total noob

 

[holtneil]

Hi mate 25 amp is the biggest they do if thats what the quad needs ,unless this is over kill the only way we will know is if you tell us what motor and props and battery you have but there is not a lot in the next one down of 20 amp
https://hobbyking.com/en_us/q-brain-4-x-25a-brushless-quadcopter-esc-2-4s-3a-sbec.html
https://hobbyking.com/en_us/q-brain-4-x-25a-brushless-quadcopter-esc-2-4s-3a-sbec.html