I own 4 P3 batteries. On my last flight, I used up all 4 batteries, flying on each till around 20% before flying my bird home and replacing with a fresh battery. I have a drone meet tomorrow so I decided to charge my batteries. Before I plugged all 4 batteries into my charging hub(DJI), I click each battery to confirm that they were all on low power. All showed one green led flashing with each button press. When I started charging the batteries, I noticed that the hub only cycled within 3 of the 4 batteries. The lone battery that didn't go through the hub's pre-charge "checks" may or may not have been seated completely into the hub, I'm not sure. But after turning off the hub, ensuring all four batteries were securely snug in the hub, I turned on the power to the hub again. Once again, that particular battery was skipped in the pre/charge checks. I took out that battery and click the button once. It showed 4 leds lighted up! Full power?! That's impossible. I brought it back to my room and tested it in my P3. Turned on my remote and connected my phone and launched the GO app. Battery power indicated 15% now. This is the screen grab from the battery info page at the moment. Could anyone find out if anything is wrong with the battery? Does the "100%" mean anything even though my battery clearly wasn't at 100% power at that point? Anyway I decided to run the engines without props for a while. Brought the remaining power from 15% to about 13%. Plugged the battery back into the hub and now all 4 are charging as per normal. Weird.