Hey, I’m facing the same issue, unfortunately, with my iPad Air M2 11” (WiFi), which I bought in September 2024. Whenever I use the Apple Pencil Pro to take notes or just use it in general, the battery drains ridiculously fast, and the iPad heats up. My brightness is always below 50%, and I don’t even have that many apps, I only charge it until 80% and recharge it before hitting the 20%. However, when I use the iPad without the Pencil—like tapping with my finger or using a Bluetooth keyboard—it works perfectly fine.
I’ve already contacted Apple Support twice with no successful solution. They told me to wait for a software update that would fix the problem (or to get the iPad checked at an Apple Store, where I’ll probably hear the same thing). I fear that by the time a fix arrives, my battery might already be damaged, or its lifespan could decrease due to this issue. I wouldn’t find it cool if Apple’s bug ends up damaging my device, and makes me pay for repairs later when the warranty expires.
Unfortunately, not many people are taking this problem seriously, and there isn’t much discussion about it. I assume this issue might be specific to this model series.