Intended to fly about 2 weeks ago so charged my 5 batteries. Didn't happen and 2 weeks went by before an opportunity to fly again. In the meantime some batteries had begin to self discharge. No biggie. I was on the beach with the kids, and put the least charged battery in first, a tb47 with 39 charge cycles. Booted up and it came up around 60% which I figure is enough to reaquaint and dial in the camera. Fly around close a little bit then do a run down the beach parallel to stretch her legs a bit. Barely into that and I get a "motility" warning which I iregard as because the winds are up around 15-20. Make a uturn to do a run past my girls who are walking along the shoreline and get a RTH warning immediately followed by a notification of a forced landing imminent so I dial the camera 90 deg down, adjust to miss a shrub and put down in the dune. camera shuts off and I walk the 100 yds to where the drone is. cant remember if i turned the battery back on but app is reading 46% so i pick it up, restart the motors, and launch it again. it flys w no other issues besides i think another low battery warning well above the 25% that i have programmed. Land it with about 20-22%. Although i have litchi, i used the dji go app to be a little more "secure." WTH!? i often fly, and could've very easily been over water and wouldve had drowned bird. Any ideas on the problem? software? After an issue this past july 4th where the software saved the aircraft from a mishap well out over water, giving me supreme confidence in its survivability, that has all been taken away and will now have to be reestablished. Edit: each cell within .01 voltage.