Testing 26650 Trustfire with a MBT-1

I have the ZTS MBT-1 but it only goes up to 18650, how far off would the reading be or would it be at all if I tested a new Trustfire 26650?

Nobody?

It should work fine. As I understand it they just test the voltage under load so it may not be the representation but it should still work.

Thanx bro!