Watching YouTube videos or any other video content, including video-conferencing and gaming, is not light use. They work both the CPU and GPU more than any other class of task other than some of the pro apps.Today I find even some web pages use an exorbitant amount of energy.
"Capacity" and "charge level" are two different things. Please clarify this:
My battery capacity says it’s 100% but it drains 1% in like 2-3 minutes and it was not like that when i bought it (july 2024)
Is the capacity or the charge changing that fast? I'm guessing charge, but I want to make sure.
All batteries wear out—they gradually lose the capacity to hold as much power as they did when new. A very rough analogy is a metal water bottle:
New and filled to the top, the bottle held 16 ounces. After many hikes, getting dropped on rocks and accidentally kicked, it gets dented. Through normal use, the dents will reduce how much water you can cram into the bottle, So you can still fill it to the top, but now you cannot get more than 15 ounces into it. So it can be fully filled ("charged") but has only 94% of its original capacity.
Although battery capacity is too inexact to call a "metric" and is not a linear value, it usually drops at a very rough one percent a month for the first months of use. If yours still shows 100 % and is -8 months old, I would first restart the iPad and check capacity again.
It that does not change things, you might ask Apple to evaluate the battery. It should never "stick" at 100 percent.