I bought a Phantom 3 Pro about 30 to 45 days ago. I bought it with an extra battery. Almost immediately, I had a problem and could not update the firmware, because 1 of the batteries was damaged. No problem and quick exchange and back to having 2 batteries. Yesterday another battery failed. I have had no crashed, no water (rain issues), etc. Normal flying in great conditions. Is this typical we are having to buy 2 to 10 batteries a year to maintain your drone?