How to recover from short circuit of mobile power supply?

Most of the mobile power inside the use of lithium-ion batteries, when users operate or use improper, the battery may be due to a short circuit and then lead to security incidents, it has become an impact on the use of mobile power security a major hidden danger.

The charging wire uses PVC plastic skin

What is causing the short circuit of the mobile power supply? When an abnormal path occurs between the positive and negative poles of the core, the inner core produces large currents and high heat energy, and when the process appears inside the sealed lithium-ion battery, a sudden increase in internal pressure can cause the battery to burn or burst, causing a safety accident.

There are many reasons for the short circuit of the mobile power supply, which is usually related to the product quality, the use environment and the daily use method of the mobile power supply itself. As we all know, mobile power use of the charge line is generally used PVC plastic skin, not only to the internal metal wire to play a protective role, but also can play an insulating effect.

The charging wire uses PVC plastic skin

The plastic skin of the charging line is likely to wear seriously, weathering chap and so on during the daily use, it will leak out the internal metal wire, which is likely to cause short circuit. Where the wire is welded with the circuit board and the electric core, usually also use insulation tape for fixed and other measures to deal with, but in some inferior products have not been such treatment, will solder joints and direct exposure to the external surface, in the use of the process is very likely to come off the solder point, positive and negative lead wire missed and other causes such as short circuit.

Many users in the use of mobile power when the details of the lack of attention, may inadvertently let the mobile power into the water, or for a long time in the humid, low-temperature environment using mobile power supply, causing the internal frosting, which will also cause internal short-circuit.

Direct connection of positive and negative electrode leads to internal short circuit of electric core

Also some users usually use the mobile power after when it is incorporated, the USB charging line is connected directly to the input and output interface of the mobile power supply, although the short circuit protection is used in most of the products, but it is very dangerous to connect the positive and negative pole of the electric core directly. Once the protection circuit has failed, it will lead to short circuit, and often this will cause a certain damage to the batteries.

Large-brand mobile power supply in the market mostly equipped with short-circuit protection procedures, when the short-circuit situation will be the first time to close the circuit. The most common types of short circuit recovery methods used in mobile power supply are: automatic recovery, charge recovery, key recovery and so on.

Automatic recovery is when there is a problem with the internal power supply, the internal circuit will be automatically adjusted, the current will not be completely cut off, when the breakdown will automatically resume work; Charging recovery, that is, the internal fault caused by short-circuit protection after the opening, again for its charge, you can restore it; key recovery, some products in short circuit protection, Need to open the key to activate it, divided into short and long in two ways, the operation is relatively simple.

Usually when you use mobile power, should avoid the long time charging, prevent the long time charge to cause the safety hidden danger; To avoid in the damp, too high, too low environment to use, to prevent the movement of excessive moisture inside the power supply or frost caused by short circuit; try not to use in thunderstorms, mobile power is prone to arcing, electric shock, Short circuit and other dangers.

Use the right way to make the charge more secure

Mobile power because of short circuit fault caused by the burning, explosion and other reports are common, how can we avoid these security risks arising? First of all, everyone in the choice of mobile power, should try to buy large brands, genuine mobile power products, on the one hand, large manufacturers of production technology and safety protection design more mature, on the other hand, If there is a quality problem, after-sale maintenance and claims are also more secure. Second, users can not rely entirely on the product's own protection circuit, a good use of methods and habits, to a large extent, also to avoid the occurrence of security problems.