Finally, a Lightweight Case That Keeps Phones Charged

Whether you're an avid Instagrammer or serious mobile-web surfer, it doesn't take much to drain your phone's battery. Protective cases that provide extra juice are a must for events like weddings and weekend getaways, but oftentimes, these accessories are too bulky. That is, until the arrival of the Mophie Juice Pack Air and Juice Pack Plus for iPhone 6. The announcement of these two superthin battery cases at CES 2015 was just what our weary devices needed.

A little switch on both cases enables charging in a jiffy. The Juice Pack Air ($100) boasts 100-percent extra battery, plus a rugged outer case as a first line of defense against falls. With the case, your phone will last for 28 hours of talk time (vs. 14) and 20 hours of web browsing (vs. 10). The Juice Pack Plus ($120) is for heavy hitters. Rubberized internal bumpers keep the phone well protected from damage. It also offers 120-percent extra battery, which means 31 hours of talk time (vs. 14) and 22 hours of web browsing (vs. 10). This is the case you'll definitely need for your next long flight.

Want proof of how slim it is? We got up close to the new case at CES.

Preorder now, and they'll ship in three to four weeks, just in time for your weekend-long, off-the-grid Valentine's Day surprise. If you want to make sure your phone battery goes the extra mile, follow these simple tips that don't require any case at all.