Ipad Pro Not Charging Flashing Red Battery. If the iPad battery is totally drained you may not see the battery recharge image for several minutes. It sounds as if there might be some lint or something in the port thats preventing the cable from seating properly.
It works for some people but obviously its not guaranteed to work for everyone. If you see the red section of the battery image flash three times and then the screen goes black it means that the iPad is not receiving power to charge. You might also want to check the charging port under a good light possibly with a magnifier.
If the iPad doesnt charge through the electrical outlet you may have a problem with the cable or the adapter.
Quick tip for anyone with an iPad Pro from 2019 with USBC power adapter. The first method is actually a collections of things you can try to get your iPhone back to normal. Follow these steps and try again after each. Ipad Pro 2018 Wont Charge Red Low Battery Icon Flashing Slowly Have a Ipad Pro 2018 hooked up to various chargers and it will not turn on or take a charge.