iPad Air 5th gen crashes viewing full screen screenshot

The symptoms that you describe may suggest a failing battery. You may be able to narrow the possibilities.

Start by connecting your Power Adapter to your iPad - and allow the iPad to charge, undisturbed, for several hours. Next, whilst the iPad remains connected to external power, attempt to start-up the iPad. If the iPad does successfully boot/restart, you can verify the reported battery state.

Assuming that the iPad is still running, whilst monitoring the battery state, disconnect the Power Adapter. Does the reported battery state suddenly fall, or the iPad immediately power-off? If so, your battery has either reach the end of is useful life and/or is failing. 

If the iPad remains running, you would be well advised to directly contact Apple Support using the Get Support link at top-right of this page - and request a remote diagnostic test; the results of this test may better inform your next steps.

Consider that the problem may be with the Power Adapter, cable, or iPad. These support pages should help with troubleshooting:

Charge and monitor the iPad battery - Apple Support

If your iPad won't charge – Apple Support

Troubleshooting generally requires substitution of the Power Adapter and cable for another known-good item.

If may well be useful to take your iPad, Power Adapter and charging cable along to the Genius Bar at your local Apple Store - where the technicians will be able to test and assess your iPad (and its battery), your Power Adapter and cable(s):

Genius Bar Reservation and Apple Support Options - Apple

I hope this guidance proves to be helpful with troubleshooting the problem.

Knowsmoststuff wrote:

Update : now it just randomly restarts sometimes and sometimes not. It restarts successfully when plugged into power and after a few hours its battery does not fall dramatically or power off. However it happens often when it is below 70%. Does this mean my iPad is on 1/3 the amount it can hold when I first purchased it? And how do you get it to run diagnostics or analytics? Would fixing it be as much worth it as buying a new one?

You would be well advised to directly contact Apple Support - and request a remote diagnostic test of your iPad. 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 using the excellent Apple Support App. If not already installed on your iPad, or another Apple device, 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 hands-on test and assess your iPad:

Genius Bar Reservation and Apple Support Options - Apple

Initial diagnostics are usually free of change. If an out-of-warranty fault is identified, service or repair costs can be explored. You won't be charged unless you choose to proceed.

This Apple support page outlines accessing self-diagnostics:

How to put your iPad in diagnostics mode - Apple Support

For practical purposes, in lieu of repairing and returning your own iPad, Apple usually exchange a qualifying iPad for a renewed/refurbished iPad of the same model and specification. The cost of the exchange is the same as would otherwise be charged for repair. Unless you have benefit of an active AppleCare plan, an out-of-warranty repair while expensive will be somewhat less than the cost of a replacement iPad.

As for out-of-warranty repair costs, Apple offers a fixed-price price repair. You can verify eligibility and cost for your region/country here:

iPad Repair & Service - Apple Support

If you have an active AppleCare+ plan, the cost of repair is reduced to a small excess/deductible fee.