Jeff Porten’s visit to the CES Home and Health show floor included a smart mailbox for your deliveries, a battery accessible to the blind, a smartwatch you never charge, and news of an embarrassing moment for the CTA.

Updating a product that was last revised for the iPhone 7, Apple has released smart battery cases for the iPhone XR, XS, and XS Max. All three are available now for $129.

Those of you with non-Touch Bar models of the 13-inch MacBook Pro should swing by Apple's Web site to see if your Mac may be covered by a program that replaces batteries that could expand, damaging the laptop.

Worried about your iPhone battery? iOS 11.3 tells you if you need a replacement. The latest version of iOS also introduces the beta of Business Chat, shows videos in Apple Music, and features improvements to Safari.

Apple has published a letter to customers to apologize for silently reducing performance in older iPhones in an attempt to eliminate unexpected shutdowns. In it, the company explains the situation and announces a drop in the price of battery replacements.