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Is your phone, tablet, or laptop on its last legs before day's end? We've tested scores of power banks to tell you which ones will give you the biggest boost when you're out of juice.
7 years, 8 monthsThe Powerstation USB-C backup battery from Mophie offers a solid dose of extra power and USB-C charging, but it's relatively pricey.
9 years, 4 monthsThe Mophie Powerstation is an attractive battery pack with a pocket-friendly design.
9 years, 4 monthsThe Ventev Powercell 3015 is a compact backup battery that's easy to slip in your pocket, but its small size limits you to a single phone charge.
9 years, 4 monthsThe Fast Charge Battery Pack is a sleek backup battery with fast charging benefits for Samsung phone owners, but more capacious options abound.
9 years, 4 monthsThe Anker PowerCore 10000 is an affordable, compact backup battery that supports Qualcomm's Quick Charge 3.0 standard and can keep your phone running for an entire day of nonstop use.
9 years, 4 monthsSanDisk's iXpand Memory Case is one of the better ways to add storage to an overstuffed iPhone 6 or 6s, but iOS limits its utility.
9 years, 10 monthsApple's new Smart Battery Case sacrifices capacity for slimness, repeating the decisions that led you to need a battery case for your iPhone 6 or iPhone 6s in the first place.
10 years, 5 monthsSamsung's Wireless Charging Pad is compact, fast, and reliable. It's compatible with all Qi-enabled devices, but it works best when you use it with a Samsung phone that supports Fast Charge.
10 years, 6 monthsThe i-Blason UnityPower Rechargeable External Battery Case gives your iPhone 6 lots of added battery life for a good price, but lacks in the protection department.
11 years, 2 monthsThe i-Blason iPhone 6 Plus UnityPower Rechargeable External Battery Case gives your iPhone 6 Plus a huge battery boost for the price, but it lags in looks and protection.
11 years, 2 monthsThe Boostcase for iPhone 6 is a hybrid battery case with some unique aesthetic features and simple additions that place it ahead of the competition.
11 years, 3 monthsNeed extra juice for your phone or tablet? Mophie's Powerstation Plus 2x is a an external battery with a modest capacity and decent performance, but it's priced like a higher-capacity battery.
11 years, 5 monthsThe OtterBox Resurgence doesn't extend the battery life of your iPhone 5 or 5s as long as competing models. It does, however, offer more protection than most other battery cases.
11 years, 10 monthsIf you need more storage space on your iPhone for media as well as extra battery life, Mophie's Space Pack is the case to buy.
11 years, 10 months
