2010年12月22日星期三

Why laptop battery often explode?

Why laptop battery explode?

Laptop battery is composing of the box, interface, mobile and control circuit board, battery cell is responsible for supplying and storing energy from the laptop. The control circuit board with the working principle and design complex, which controls the starting and stopping battery charging at the right time, controlling the discharge current reasonable, and are also responsible to show the capacity dell xps m1330 battery specifications charge and recycling recording times. When the battery at a high temperature and general condition of the UN-normal ongoing and that the control circuit board can protect the battery.


The four suspected exploding laptop.

A battery cells within short

Latitude D820 battery cells has no protective function when large current meet, if multiple individual cells or short circuit condition occurs, allowing high-intensity discharge cells. They generate large existing qualification will allow the battery temperature increases, and then transferred to other parts of the laptop.

If the battery casing is made of plastic, is deformed or even be fired under high temperature, is dangerous. Regular cells have strict test of experience when out of the factory, and the battery enclosure always take non-combustible material and hard to get fire. So the likelihood is more concerned with material of poor quality.

B cell battery connector cable short circuit



The Dell Inspiron 6000 battery, the internal structure is very compact, leaving the chance of cells. The wires in the middle are very compact and very close to the cells, skin cells and carried out cables or cable connections emerge, then the cells were discharged at very high current and carry high temperatures and the final cause fire.



C, the invalidation control circuit



Sometimes, the control circuit in turn overridden protection even when the dell inspiron 6000 laptop battery is made of normal use, when under full load and non-normal, the current large, the temperature will increase and cause a fire.



D Heat and abrupt incident

The laptop external liquid fire or corrosion, lightning or voltage UN-normal cause a short circuit.