Guys, sometimes I mix up power banks with fast charging devices. I get that both store electricity, but are their functions different? Does a power bank just act like an extra battery, or what's the difference between it and a charging device? I'm also curious about their use cases. Which one do you think is more efficient?
What's the difference between a power bank and a charging device?
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Power bank and charger can be easily confused, I did too at first. A power bank is actually a portable battery; it stores electricity so you can take it anywhere and charge your device on the go. A charger, on the other hand, transfers electricity directly from the outlet to the device and stops working once the battery is full. Compared to power banks, chargers are more helpful for mobility and emergencies, like during travel. But for devices that stay plugged in all the time, regular chargers are more efficient.