Is it OK that the power bank makes a little sound when I charge it (i.e., the power bank itself)? - Quora
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Is it OK that the power bank makes a little sound when I charge it (i.e., the power bank itself)? - Quora
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Amazon.com: Jackery External Battery Charger Giant+ 12000mAh Power Outdoors Dual USB Portable Battery Charger/External Battery Pack/Phone Backup Power Bank with Emergency Flashlight for iPhone, Samsung-Orange : Cell Phones & Accessories
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