Especially if you have an older iPhone, because its battery is likely terrible, carrying a separate portable power bank is almost a must. This one by Mophie is perfect. It’s tiny, small enough to fit in your pocket. It has an integrated Lightning cord, so you don’t need to bring your own. And it’s dirt cheap, as low as $14 today.
This particular Mophie portable power bank is a few years old, so that’s part of the reason it’s so cheap. It isn’t capable of fast charging the latest smartphones. Nor is it powerful enough to charge a laptop.
It’s available on eBay right now in two capacities — 3,000mAh ($14) and 7,000mAh ($20) — and if you buy two, the second one is an extra 10-percent off.
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