Is 91% Battery Health After 160 Cycles in 6 Months Normal for iPad Air M2?

Many factors can affect battery health, recharge cycle count being just one.

An iPad battery is rated to retain 80% of its original capacity when new after 1000 full charge cycles. You might therefore anticipate losing 1% for every 50 charge cycles - and as such, on cycle count alone, you can expect to have lost ~4% of the original capacity.

Given that you reported battery health is 92%, your battery health is perhaps lower than might be expected. You should note, however, that no two batteries are identical in either overall capacity or charging behaviour. Reduction in battery health is not necessarily linear and will be affected by other factors such as temperature.

A full charge cycle is any combination of charge that together sums to 100% (e.g. 40% + 20% + 20% + 10% = 100 = 1 full charge cycle).

While limiting charging to 80% of full capacity will usefully reduce chemical aging that will influence overall battery longevity, you will be recharging more often. This strategy will not reduce the cumulative effect of charge cycles - as a full cycle is any combination of partial charging that together sums to 100% - even when limiting the battery charge to 80%.

If you have any concerns whatsoever, you might be well advised to seek assistance directly from Apple Support - and request a remote diagnostic test. You can contact the Support Team using the Support link at top-right or bottom-left of this page.

Alternatively, you can initiate and manage your support cases from Apple devices using the excellent Apple Support App. If not already installed, the App can be downloaded from the App Store:

https://apps.apple.com/app/apple-support/id1130498044

You might also visit the Genius Bar at your local Apple Store or Apple Authorised Service Provider (AASP) - where the technicians will be able to test and assess your iPad:

Genius Bar Reservation and Apple Support Options - Apple

Unexpected localised heating adjacent to the camera is not normal.

If your iPad is not operating as expected, try a forced-restart - as this will often clear an isolated software issue:

Force restart iPad (models with Face ID or with Touch ID in the top button)

If your iPad doesn’t have the Home button, do the following:

1. Press and quickly release the volume button nearest to the top button.
2. Press and quickly release the volume button farthest from the top button.
3. Press and hold the top button.
4. When the Apple logo appears, release the top button.

If the problem persists after performing the restart, it may be necessary to reset your iPad settings. While this reset will not cause any loss of data, as a precaution, it is always wise to ensure that you have a current iCloud or iTunes backup before performing the reset:

How to back up your iPhone, iPad, and iPod touch - Apple Support

When you are happy to proceed, you can perform the reset from iPad settings:

Settings > General > Transfer or Reset iPad > Reset > Reset All Settings

If the problem still doesn’t clear, the next step is to reset the iPad to factory settings:

Restore your iPhone, iPad, or iPod to factory settings - Apple Support

Otherwise, you would be best advised to again seek assistance directly from Apple Support. You can contact the Support Team using the Support link at top-right or bottom-left of this page. Alternatively and perhaps easier, you can initiate and manage your support cases using the excellent Apple Support App. If not already installed on your iPad, the App can be downloaded from the App Store:

https://apps.apple.com/app/apple-support/id1130498044

You might also visit the Genius Bar at your local Apple Store or Apple Authorised Service Provider (AASP) - where the technicians will be able to test and assess your iPad - and you can explore your available options:

Genius Bar Reservation and Apple Support Options - Apple

Having exhausted all the suggestions offered above, what options were offered when you visited the Genius Bar?