It’s the middle of summer for those of us in the northern hemisphere, which means many of us are getting out and about to make the most of the warm weather. But there’s little worse than finding yourself mid-hike or with several more acts to go at a festival only to find your phone is out of juice. To help you stay in touch with friends and share envy-inducing photos on Instagram, you might need a portable charger, and a solid Anker options is currently on sale.
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