My Custom Carbon Fiber Revo 3.3 Brushless Conversion!

[scarletboa]

yes, 14.7 is perfectly normal for a 4s lipo. you were almost at the point where the cells just dump and hit lvc. you had maybe 2 or 3 more minutes of runtime left on that pack.

most higher c rated lipos run best with the cutoff set to 3.4v/cell. the newer lipos (like yours) typically dump pretty quick and you will lose maybe 20 seconds of runtime, but it will make your battery last a lot longer.