The 5 Best Universal Smartphone Charger Packs

Iogear GearPower High Capacity Mobile Power Station

Here’s another solid two-port battery pack carrying a power output of 6,600mAh. IOGEAR’s energy box offers a smart LED power capacity display to keep tabs on power levels, plus features temperature protection to stabilize heating. Dual-charge Android and iOS devices and breath easy knowing your smartphone will survive the next 48 hours.

Buy it now at Sears for $46

Belkin Power Pack 4000

This slim and lightweight juice pack carries 4000 mAh of power and two power ports to ensure up to two times the full smartphone charge for your handset. If you find yourself in beast mode and constantly using it, Belkin’s integrated what it calls thermal management to shut down the battery and prevent overheating. Those fortunate enough to maintain a full charge on their phone throughout the day, the Power Pack 4000 got you covered going into the future—storing 95 percent of its charge for 30 days.

Buy it now at Belkin for $100