I need a portable USB charger. I know I can buy a wall plug with USB charger ports, but I'm looking for a no-plugin charger. I know I'll need to recharge it. I'm limited on outlets right now so portable is best.
I'm confused on mAH. Theoretically, how long does 5,000 mAH take to charge a small device versus 24,000 mAH?
I'm confused on mAH. Theoretically, how long does 5,000 mAH take to charge a small device versus 24,000 mAH?

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