Iam beginning to see your question.
Batteries cannot damage your system. Only you can by incorrect gears, incorrect motor voltage, incorrect propping etc. These cause system to draw more current than system can tolerate. But if you draw more than "C" rating then the battery can not tolerate an it's going to fail.
So what we use is a wattmeter placed between battery and the system "esc" an measure this current an it tells the whole story then we can decide if battery is to weak or if excessive current to systems parts.
Rich