iPad Pro 12.9 2nd Gen Battery weak
Hi, For the past few days I have noticed that the battery in my 2nd Gen iPad Pro 12.9 drops way to quickly from normal. I have also noticed that when i'm in a call with my friends on discord I was able to keep the screen on to see what was going on. Well within the past week that has changed. While charging the iPad and using it at the same time it will go up 3% and then down 3% and keeps doing that over and over. I have tried different charging cables and I am using the original power brick that my iPad came with. I want to check the battery health of my iPad Pro as it is only 1 year old and should not have these issues. My old iPad 4 did not show these issues until after 4 or so years of usage. I have also noticed other weird things such as the touch screen not responding at times and bright spots at the bottom of my display but those I can deal with. I really want to get this battery problem solved. I want to know what can I do to have this fixed? How much would it cost if I sent it into apple for repair? I also forgot to mention that every once in a while it will show not charging in the top right when charging from the power brick.
iPad Pro 12.9-inch, 2nd Gen, Wi-Fi