Xiang Jie Thinkpad X31 laptop battery for core

Almost every notebook computer users will use the time for the battery Sony laptop battery to worry about, the average laptop battery only supports 2-3 hours of usage time, and in the use of a period of time, battery life time will be shortened to more than an hour Faced with this embarrassing situation, should we be able to spend the high prices to buy a new battery do? An overseas users and gives us his answer to the original we can solve this problem. The User's IBM Thinkpad X31 notebook computer is very old, and bought back when the battery capacity can be achieved 4.4AH, but after a few years after use, the current battery capacity can only be achieved 1.8AH. In fact, for lithium batteries, as time goes by, their life will naturally decrease, even those who have not been repeated charge and discharge process of lithium Laptop Battery batteries is also the case

Inaction has been the aging IMB X31 laptop battery "

In the U.S., a new original IBM (Perhaps we should call Lenovo) batteries sell for more than a hundred dollars, so the User decided to buy some cheap OEM Li-ion battery, replacement laptop battery within its own batteries . The first step of this work is to identify what will need to PCGA-BP2V purchase batteries, so first of all to open the old battery to see what happens.

Open the shell to see the six-cell battery X31

Open the battery case, we see that the standard X31 battery is six cores, each two rows as a group. Each of the voltage is 3.6 volts, it is added together with 3 × 3.6 = 10.8 volts. PCB within the battery plate and the bottom of each battery connected for charging and discharging capabilities, we can see the yellow wire and black wire connected to the ends of the PCGA-BP2T battery, while the silver metal plate will connect the middle of the battery. The middle there is a thermocouple in the battery, the control PCB can be read through its charging and discharging of the battery temperature. If the PCB board found that the temperature is too high, it will reduce the charge rate, or cut off the power. At the same time left in the most time between the two cells fuse, when the PCB board for some reason, when the failure, this fuse will play a role to ensure that the work in a safe temperature within the battery. These safeguards are designed to prevent PCGA-BP2S battery explosion, taking into account the recent bombings more than batteries, so these protective measures is still very necessary.

Finally, I decided to use the same size battery, the battery in the Monopoly Web site, I found that 18650 battery size 64.9 × 18.3 mm, with the size of the original battery or less. Accordance with the specifications of each of the battery capacity of 4.4AH, that is, 4400mAH, so my new battery must be 2200mAH capacity.

Important!

6 to wait for a new replacement battery

In any case, should never be used below the required voltage of the battery. Because that would cause overheating, but the chip inside the PCGA-BP2R laptop battery will prevent this from happening, and will therefore result in abnormal or cause an accident. As long as we use is equal to the replacement of the battery power is equal to or higher than the original battery, it will be all right. . . .