Hello everyone....I am brand new to this forum and web page. I sought it out in hopes for some answers to a battery issue. I have had my Mavic Pro for about 2 years now. When I got the Mavic I invested in 2 extra batteries that I purchased directly from DJI. I don't fly daily by any means but I do try to keep my batteries charged or if they are going to be stored for a while....I try to keep them at about 50%. About a month ago my family and I took a trip to Hawaii. A week prior I pulled out all my batteries and charged them. They all charged and showed full with the LED lights but 1 would not power up the drone. I immediately purchased another (through DJI) and we were on our way. I was looking forward to getting some amazing shots and I did but soon after we arrived I had another battery quit working. It showed full charge but when placed in the drone and turned on....NOTHING. So now that's 2 batteries in a weeks time that have gone bad but at least it happened prior to flight. Our last day in Hawaii and I wanted to get some nice shots of our resort. I wanted to go out over the ocean (risky I realize) and video the shore line. I put a freshly charged battery in the Mavic and began my flight. I flew it around for a couple of minutes and began to get a little nervous so headed for land. As I was bringing it in I still showed 75% battery life. As I was bringing it in for a landing and just after I got over land (thank goodness), the drone just went dead and did a nose dive into the beach. So now that's 3 batteries in a week Now I am afraid to fly it anywhere beyond my backyard. Up to this point I guess I always figured it would give me some warning or maybe lose power gradually but that's not what happened at all. If that battery would have died 20 seconds sooner it would have been in the ocean never to be seen again. Has anyone had a similar experience or could give me some possible reasons for this? Like I said....I have this fantastic drone that I am now afraid to fly. Thank you in advance for any help or guidance.