I had a weird thing occur today. I was out at a local park where I test fly sometimes. I had a guy come up who was very interested in the Solo. Seems he crashed his Phantom Vision+ recently and needed a new gimbal and camera. He was talking to me about Solo and whether that would be a better option for his money. I was showing him features of the Solo and did a couple of smart shots, and saw my battery was down to about 32%. I was maybe 100ft. out and maybe 150ft. up, and went to show him RTL. My Solo did as it should, and started up. My RTL is set at 195ft, and as you know it goes up pretty quickly. Within 20secs. of starting it's ascent, I got the 25% battery warning, the critical battery warning, and the audible beeps from Solo itself. I watched the battery plummet to 10%, hit pause to regain control, and landed it myself with 1% battery showing on the screen. I was so intent on landing safely, I never got to check the battery voltage screen to see what it read. Now, I normally return and land with between 23% and 28% left. I have never had the battery drain so fast, even from 30%. My question is, do you think the rapid ascent when RTL was activated caused such a fast drain of the battery? I know going up rapidly uses a lot of juice, but this kind of drain has never happened before. Has anyone else experienced this? I thought maybe the battery percentages were off on the screen, but when I hooked the battery up to the charger, only 1 LED was lit. It seems to be charging ok, and I will put it in and test it in the morning with some very low and slow flying. I was just wondering what everybody's thoughts was on this. Thanks in advance for your help.