I am using the 7CP-1300SCR 8.4V pack (7 cells). Battery is good as far as I know. I got two of them (when I bought the ARF) and they both show around 8.8 volts.

Today I put on a break-in prop of 5 x 4.5 and it ran a lot better then when running with the , but still had a few quits.

Of the three major components, can I rule any one of them out (battery, ESC, motor)?

I bought everything from the local hobby shop (18 miles away) and will talk to them on Monday. But it would be helpful to provide them with as much diagnostics as possible.

I will peak-out the batteries and see if that makes lengthens the time between motor quits.

I guess that the batteries should be 8 cells, giving me more voltage?

What do you think?

Dan