Hi guys, hopefully not that dumb of a Q.

I recently converted a Cessna 182 .40 size to electric. Using a Phasor 45/3 and a Castle 70 amp that I had, I was advised and bought 2 seperate 4c 4000mah Li-po's.


Once I started rigging it up, I noticed I had plenty of power and time on one pack. Being the E-rookie I am its my understanding that adding packs in parallel only adds capacity or duration (flight time). With flight times above 15 minutes in capacity, and wanting to be a nice guy at the field not hogging up the pin taking 10 minuteflights:

WHY so much batteries? Was it just a 'here comes a fat wallet, lemme sell this guy 2x the batteries he needs' or is it really better to double the battery weight and flight times? Am I missing something else here?

I'm wanting to do a Corsair Hangar 9 conversion and the battery setups I read about are pretty substantial in size, duration AND cost. Why so much there??