Smartphones are getting increasingly powerful and capable, which means they also need more energy to last the whole day. Battery sizes are growing as well, but they're seldom large enough to keep your handset up until nighttime, especially when you're traveling and using your phone to find your way, take pictures, and look up places to visit. Power banks are a convenient way to fill up your phone on the go, and thanks to this deal on Anker's PowerCore Redux power banks, you'll be able to charge your device wherever you are.
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