TIME Magazine default image

External battery

With days filled with classes, activities, socializing, and more, students may not have time to recharge their phones. A Mophie charging case starts at $20. And a n external battery from Jackery (as little as $15) can extend the life of a cell phone battery by several hours.

More from TIME.com

TIME may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.