Why laptop battery power for no reason?



Notebook computer starts, the self-test not completed automatically laptop battery power off, but with the power adapter to the laptop power supply when everything is normal. Why is there such a reason? Phenomenon can be seen from the fault, the problem should be out within a battery or notebook battery-powered circuit.

Jane first, difficult ones in line with the principle, first check the battery. Measuring the battery voltage of the two battery packs are 10.5V, with an external heating wire to the battery discharge method to estimate the capacity of the battery pack and found two battery packs are relatively abundant. Hence, "exclude" the possibility of faulty battery Hp PF723A battery.

And then check the battery and notebook battery touch tablets, also did not find any poor contact problems. Therefore concluded that failure in the notebook inside the battery-powered circuit. Relied on their strong home appliance repair skills, recruited some of the tools trying to notebooks apart. But the cost for nearly half a day, not only failed to disassemble and give Tim a two notebook shell scratches. Later, a thought, notebook computers are sophisticated electrical appliances, under normal circumstances in its internal circuit is no problem. So in turn to check the battery.

A total of eight battery Hp Pavilion DV1000 battery(Hp dv1000 battery) metal interface, are neatly welded in a rectangular circuit board, from left to right marks were (the battery with the label side fac