What battery do I need for this setup?
 

New at this and just got an electric powered Kadet Senior and not sure what size or other lipo to use in it..
Here are the components:
PROPDRIVE v2 4248 650KV Brushless Outrunner Motor
Turnigy Brushless ESC 85A w/ 5A SBEC

The web site says More cells make the motor turn faster and more capacity will make it fly longer. Either will be heavier.

https://cimg7.ibsrv.net/gimg/www.rcu...1e6c13b95b.jpg
Sig Kadet Senior
https://cimg1.ibsrv.net/gimg/www.rcu...7b33a5265d.jpg
Sig Kadet Senior in flight

What is the real question?

Thanks,,I was concerned about what this motor and esc could handle....dont want to burn either up..

If you haven't changed anything and the web sites say "4S to 6S" then you are good to go.
The capacity only adds run time (and weight), it has no effect on the motor or ESC.

PROPDRIVE v2 4248 650KV Brushless Outrunner Motor
Turnigy Brushless ESC 85A w/ 5A SBEC
try your luck ! thats all i know !!