5th 6th cells, need fets?
 

when you add 5th or 6th cell. do you need to install fets?

No. Fets only allow you to use hotter motors. They have almost nothing to do with how many batteries you use.

In addition, if you had searched for this, you would have found it.

thanks
fets in serachs are kinda broad
theres alot of forums in fets i have to lookk for that exact post by looking in each one, and plus i got lazy :D thanks anyways