Battery packs on sale: Save up to 75% on these 10 power banks

These days, portable batteries are essential gear for anyone living in a city (thank you Google Maps, savior of millions of metro riders and clueless drivers everywhere). Once relegated to the suitcases of travelers headed abroad, the battery pack has increasingly become more important to modern life in general, period.

Of course, there's an endless slew of different battery packs out there, each with their own different specs and characteristics. Where to start?

SEE ALSO: 7 wireless chargers that will juice up your phone crazy fast

Here's a big compilation of recommended picks that are on sale this weekend: Read more...

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from Mashable http://bit.ly/2Vc9LQo