6 batteries for my phantom four pro.

Only 3 batteries for me.  I find it a little pricey to own any. more than this.  I also have the battery charger that supports only 3 batteries, and during the winter time it does a great job putting my batteries in storage mode.  If I had more then 3 batteries I would have to get a second charger unit.

24.  When you fly all day it's just easier to switch batteries and continue flying.  Then charge them at night rather in the field.

Probably over 100 here. If one was to catch fire, id take out the entire block.