An iXBT.com user told us which parameters of an external battery you should pay attention to so that you do not regret it after purchasing it.
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connectors. It depends on the ability to charge the smartphone. For example, if you have a cable with a USB Type-C connector, it does not make sense to consider a power bank model with USB-A. Ideally, of course, the external battery should be equipped with ports where most of your devices are charged.
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Capacity. Most powerbanks have a capacity of 10,000 mAh. But if you need more, be prepared that the device will be heavier. True, due to the physical limitations of the battery, the manufacturer’s stated capacity on the box is always less than the actual capacity. But if the model is of high quality, the actual capacity will be 80-95 percent of what is stated on the package.
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output current. You can find features such as 10V, 2A on the box where the power bank is located. It is important that the second number is not less than the required power of your smartphone. You can find out the power indicators on the official website of the manufacturer or from the power supply that came with the smartphone.
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Fast charging support. The fact is that some manufacturers create their own fast charging formats. For example, Qualcomm has Quick Charge, Oppo has Super Vooc, Apple has Power Delivery. Therefore, it is necessary to immediately find out which specific formats the external battery supports.
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wireless charger. Modern power banks come with a QI wireless charging coil. Therefore, if your smartphone supports this function, you can use it as well.
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Housing material and protection. If you buy an external battery on trips, it makes sense to pay attention to the presence of protection. For example, there are power banks with IP68 protection (which can be submerged to a depth of 30 m for a short time) or shockproof covers for such batteries.
Source: Ferra
