With the popularity of smart phones, we all know that the power consumption of smart phones is relatively large. Therefore, charging treasure has become an essential item for people. Now there are many kinds of charging treasures on the market. How to choose a good one? The charging treasure, the following is the purchase knowledge of some power bank, after reading it will know how to buy it.

Capacity

The power bank currently on the market are very large, with 5000 mAh, 10,000 mAh and so on. Many users like to buy a large-capacity charging treasure. Is it the better the charging treasure? In fact, this is not the case. If the capacity of the charging treasure is too large, the power that can be used to charge the mobile phone for a long time is certain, but if it is not used for a long time, the power will lose a part. This will directly lead to damage charging treasure. In addition, there are some charging treasures with larger capacity, which have virtual standard components, but the actual capacity is not so large, so you should not choose the size of the capacity to choose.

So how do you choose capacity? In fact, you can choose the right charging treasure according to your usual needs. There are often rechargeable power sources for outings. It is appropriate to choose a small capacity. If you go out often, choose a larger capacity.

Is it convenient to carry?

Power bank need to be taken out often, so whether to carry them is also an important reference factor. It is generally inconvenient to carry if the weight is too large.

Look at the voltage and current of the power bank

Charging treasure's charging voltage and current will affect the stability and speed of charging. To choose the right voltage and current output, if the phone is damaged in the past, the charging will be slow if it is too small. Generally, regular products will be marked with these parameters. We know that according to the physics related knowledge, the charging time will be short if the current is larger, but the current will be too long, which will affect the life of the mobile phone battery. Therefore, when the mobile phone is not in a hurry, it is generally acceptable to select a charging port of 1A.