How long can ipad Battery Health 83 last?

Apple's mobile phone battery life is only 83, so it doesn't need to be replaced. It only needs to be replaced when it reaches 60%.

After the aging of the lithium battery of Apple mobile phone, the resistance of the battery will increase obviously, so the battery can emit less electricity, so the capacity will become smaller, and there is a memory effect, so the capacity of the battery will be further reduced. Generally, in two years, the cell phone battery is only 80% of its original capacity.