Why does my iPad shut off constantly for no reason?

The symptoms that you describe suggest a potentially 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 Support link at top-right of this page - and request a remote battery test; the results of this test may better inform your next steps - and the economic viability of a battery replacement.

Alternatively, it may be useful to take your iPad 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):

Genius Bar Reservation and Apple Support Options - Apple

Dormanside122 wrote:

iPad keeps shutting down and won’t charge

These support pages should help with troubleshooting battery and charging issues:

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. Most models of iPad require a Power Adapter rated at 12W (i.e., 2.4A @5V) or greater to reliably charge. 5W Power Adapters (1.0A @5V) intended for older models of iPhone are inadequate to charge an iPad; if the iPad charges at all, charging will be very slow. Recent models of iPad are supplied with a 20W USB-C Power Adapter.

Some third-party USB-C power adapters (and portable PowerBanks) may not support USB PD (Power Delivery). Power Delivery mutually negotiates the charging voltage; the source, load and cable are all elements involved in the negotiation protocol. Unless the Power Adapter explicitly supports USB PD, it will almost certainly fail to charge the iPad; proprietary charging standards, such as QC (Quick Charge), are not supported.

Many computer USB ports also cannot source sufficient power to charge an iPad. Unless explicitly designed for charging connected devices, computer USB ports are typically limited to 0.5-1A @5V (i.e., 2.5-5.0W).

If you continue to experience difficulties when using an appropriate Power Adapter of 12W or greater, you might be best advised to seek assistance directly from from Apple Support. 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, Power Adapter and cable(s):

Genius Bar Reservation and Apple Support Options - Apple

My iPad keeps shutting off and idk why it turns black and then goes to the home screen when I put my password it doe it again or turns on and it's annoying

iPad keeps shutting down and won’t charge

What’s the fox for this issue ??

Slamin03 wrote:

What’s the fox for this issue ??

Please follow the advice offered within previous replies to this thread.

iPad starts to charge, then suddenly after a few minutes stops charging. Any ideas