Always seeing someone ask on the Internet," what is a good mobile power supply? How to choose the mobile power bank? How do you know the mobile power charger's quality is good or bad." Those are all proved everyone is more concerned with quality of mobile power supply.

Decided to the quality of mobile power charger is mainly two aspects:

1.Battery Cells

Mobile power supply on the market at present adopts 18650 and soft package lithium battery. 18650 is a kind of liquid lithium battery, 18,65 is the size of the batteries, 0 represents cylindrical, wrapped in a thick layer of steel shell outside, also have aluminum shell, cylindrical. The other is a paste of lithium batteries, the industry are called soft package, you can customize a variety of shapes.

The advantages of 16850 are mature technology, large capacity, it is said that the biggest capacity can reach 3000 mah, if only to say battery cells, there are certain security hidden danger, a few years ago notebook battery explosion is the case, the probability is very low, which is mainly the function of protection plate can greatly reduce the security hidden danger.

Soft package Li battery also called polymer lithium-ion battery that is according to the length, width, height,  in a mathematical formula to calculate the capacity! The biggest characteristic is can be any shape. Very individualizing mobile power supply for the market at present basically all is made of soft package. For the moment, compared with 18650, the advantage of the battery is lower safety hidden dangers, 18650 May be explode, but soft bag is just up bag, burning.

In the long run, polymer battery is better than 18650 battery, of course, 18650 battery technology is mature.

2.Protection board PCBA

Protection board is mainly to adjust overcharge and over-discharge automatically. In order to avoid the battery overcharge or over discharge, the protection board make a protective measures in the design to avoid the harm of batteries. Such as when the mobile power charger is full then Shut down charging automatically.

Protection board also has an important function that is the conversion rate. For example, nominal 5000 mah batteries charge to the user equipment what is not a complete conversion 100%. 1500 mah cellphone battery be charged a 5000 mah mobile power charger, filling more than three times in theory, but in fact they are not necessarily. This is because of the batteries and charging in this object has resistance in the process, it consumes a part. Therefore protective plate acts as the role, as far as possible to reduce internal resistance as well as the optimization of the IC circuit design can make performance was improved. The specific details, it need of IC and electronic aspects.

A good protection board, can be done by more than 90%, while normal protection board in 80-85%. Estimated that only about 70% for the poor one.

What brand of mobile power supply is good? What is a good mobile power bank?

From the point of sales in the market, the Yubo, Pinsheng, Dianxiaoer, Pinneng are booming on the Internet, might be called the brand mobile power bank. But now mobile power supply on the market when it comes to real brand, should be not yet.

In addition to those brand, there are some other brands such as the Mini, Jinliang, hives, casino, IT-CEO, LEPOW, Tuobang, etc., and such as the IT industry well-known Newman, patriot, scud also have their own mobile power product line.

From the product capacity, the bigger for mobile power supply, the relatively better. After all large capacity, as long as it's not empty mark, is made of an A product battery, so large capacity is a key to evaluate mobile power charger.

From the individuality demand, when choose personalized mobile power supply can according to the individuality demand. Not only the mobile power supply  can be as the most effective tools for life, but also it can be as an ornament, it is kill two birds with one stone, and why not?

In the final analysis, when you decide to buy a mobile power supply you should mainly to consider what is kind of the batteries? which manufacturer? What is the protection board, and the conversion rate?

After reading these, the user should be able to choose appropriate own mobile power supply.