State the reason you wish to close your account. If you have a copy of the EIN Assignment Notice that was issued when your EIN was assigned, you should include that when you write. Otherwise, be sure to include the complete legal name of the entity, the EIN, and the mailing address.
After all, if your iPad doesn't have any power, it doesn't work. The iPad's battery is generally pretty good, but if your battery is starting to fail, you've got a problem. You can't easily swap out a failing battery for a new one because Apple designs its products with solid cases.
According to Apple, your iPhone's battery is designed to retain at least 80 percent of it's full capacity after 500 charge cycles. That means it won't last as long as it did when new after a couple of years. If your battery won't even last a day with normal use, it's probably time to get a new one: we show you how to fit a battery in your iPhone and save money compared to Apple's battery replacement prices. See also: 10 things you didn't know you could do in iOS 8.