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As Amazon continues to expand, its deal events you need a keen eye to spot the discounts worth acting on. But, the frankly stupidly named, Prime Big Deal Days, does indeed have some tempting cuts on portable chargers. These wee slices of energy fit neatly in your pocket, bag, or car, and help you to stay connected when your small gadgets run out of steam. So, power up with these deals on some of the best power banks .

On the hunt for more bargains? Check out our categorized Absolute Best Prime Big Deal Days picks and our live blog of bargains .

Updated Oct 8: We added the Baseus PicoGo, An

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