![]() ![]() A power bank with a capacity of around 7,000 mAh can not only charge your phone once, but you can share it with other people or charge other small devices like earbuds. If you're going to places where you regularly rely on your phone, and it may be a while before you come across a wall charger, then a medium-capacity power bank is the best option. Power Banks with Medium Capacity 7000 mAh Power Bank They're also very portable and convenient to carry. If you are looking for a portable power bank for your phone, you may want to look at those 4000-5000 mAh power banks that can fully, or almost fully, charge your device. Phone users welcome these kinds of power banks with good reason: sufficient capacity with portability. 4000~5000 mAh Power BankĪ power bank of about 4000 mAh should suffice in ensuring your phone lasts well over a day even if you're a heavy phone user, given that most people don't leave the house with a dead phone. To many, they seem pointless, but those who are not addicted to handheld entertainment may love the idea of a backup battery pack that they can attach to their key chains or keep in their wallet. Power banks with a capacity less than that of the regular smartphone are rarely seen nowadays. Power Banks with Low Capacity 1000 mAh Power Bank If a 10000 mAh power bank can barely charge your iPhone 12 mini twice, then probably it's so poorly made that too much energy loss happens during charging, it has a low conversion efficiency or simply contains far less capacity than claimed. So one full charge of a 10000 mAh power bank can charge the iPhone 12 mini from 0 to 100% two or three times (7000 divided by 2227). The iPhone 12 mini has a 2227 mAh battery. A power bank with a 10000 mAh battery has a capacity of about 6000-7000 mAh. The bigger the number is, the larger the capacity. Part of the energy will be lost in the conversion and during charging.Ĭapacity typically measures in mAh (Milliamp Hours), like our smartphone batteries. But the rule is simple: the actual capacity of a power bank is about 2/3 of the rated capacity. Capacity is one of those complicated technical terms. I once explained about the numbers printed on power banks. That's why portable power banks or battery packs exist.įor those who are new to power banks or have difficulty deciding which kind to get, capacity is the first and foremost thing to consider because it determines how often you can charge your device.Įver wondered what the best capacity for a power bank is? What Do You Need to Know About Power Bank Capacity? Yes, there are fixes to stop your phone, tablet, or laptop battery from draining fast.
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