Why Do Some Powerbanks Charge the Phone Little?

We cannot always find a socket to charge our phone, sometimes it is not close to us and stay away from our phone We don’t want to. That’s why we often have to use power banks.

Have you noticed anything about powerbanks, which have become indispensable for us at concerts, while sitting in a cafe with our friends, and sometimes even at home? The devices we choose according to their capacity, It does not always provide the charge it promises. So why?

Why do some power banks charge much less than they promise?

Powerbanks can transfer approximately two-thirds of their battery power capacity to the phone, and there are a few different reasons for this. First, Due to USB standards Smartphone batteries are charged at 5 volts, while power banks are charged at 3.7 volts. This creates an imbalance between the powerbank and the phone.

For example, if the capacity of your powerbank is 20,000 mAh, multiplying it by 3.7 gives the number 74,000 mWh (megawatt). The powerbank needs 5 volts to charge a phone and divide by 5 to convert 74,000 mWh to mAh. It turns out 14,800 mAh. So a 20,000 power bank, actually 14.800 mAh power has.

The quality of the cable also plays a big role.

Power banks may lose energy when transmitting charge to a device. This loss may also vary depending on the quality of the cable. Additionally, low-quality or long cables may interfere with the transfer of energy to your phone. to loss of voltage It leads.

As you can imagine, this voltage loss some of the charging capacity is lost it causes.

The quality of your phone itself and the power bank may cause energy loss.

If your phone is old, it may not be able to store the power bank’s energy properly. In other words, the efficiency of a powerbank you purchased with a capacity of 20,000 mAh to charge a new phone is with an old device it won’t be the same. The brand of the powerbank is as important as whether your phone is new or a good brand. Power banks with high quality and advanced technology, It generally transfers charge more efficiently.

Although the capacities of phone batteries vary from model to model, they are generally 2,000mAh-5,000mAh varies between . A power bank with a capacity of 20,000 mAh is expected to charge a 2500 mAh phone 8 times if the materials are of high quality.

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