Duracell Power Banks look like bigger than usual battery cells

A coworker of mine opened up a big square Duracell battery. Turns out it's just 4 smaller batteries on a cardboard platform. : r/mildlyinteresting

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Duracell 3-Day Power Bank and USB Charger - 10000mAh, Black, Dual Charge Technology, 2 USB Ports, Micro USB Connector, All Phone Compatibility in the Mobile Device Chargers department at

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Duracell Duracell Coppertop 9V Battery, 4 Pack, Long-lasting Power, All-Purpose Alkaline Battery for your Devices 004133304652 - The Home Depot

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