ThinkPad Battery Trade-in
For this phenomenon, Lenovo launched ThinkPad notebook users will benefit from preferential prices laptop battery trade-in services. The activities are designed to perform Legend "and I am green, I am proud", "action to address climate change" "to reduce pollution and action" commitment, while activities to high-quality service to provide customers with higher PA3591U-1BRS added value.
ThinkPad Battery Trade-in
From the other hand, the uniform replacement laptop battery is also of great significance to environmental protection. After the users to buy a new battery will often throw their old batteries, it is difficult to recycle, thereby caused to the environment to different degrees of pollution. Trade-in promotions through the laptop battery, Lenovo can be recovered up to safe disposal of old batteries reunification. This will largely reduce the environmental pollution caused by used batteries and take practical action to protect the Earth's environment.
If it is Ni-MH batteries or nickel-cadmium PA3506U-1BRS batteries, does the depth of charge and discharge through the means to conduct part of the repair (not fully repaired). However, we now use laptop computers are equipped with lithium batteries. Lithium battery failure, the basic batteries are negative because of the collapse of material occurs. This situation is not reversible, so can not be repaired by the above method. Can only be decrypted by replacing batteries and unlock to repair it.
To the laptop battery for batteries, first to tell you about the construction of laptop batteries.
Laptop battery can be divided into three parts: the shell, batteries group and protection of the board
In general, the laptop battery can be divided into three parts: the shell, core group and the protection of electrical panels.
Shell shell, that is, the shell of notebook batteries. In accordance with the different bonding methods can be divided into: Buckle type, ultrasonic bonding type and PA3291U-1BRS glue-type adhesive.
Group batteries
Electric core group, that is, the batteries through the parallel, series the way together. In accordance with parallel, series of different combinations can be divided into: 2 and 3 strings (the most common), 2 and 4 strings, 2 and 2 strings, 3 and 3 strings, and 3, and 4 strings (relatively rare).
Note: 2 and 3 strings means, first two batteries together in parallel, then parallel to the three groups together like batteries together in series. 2 and 3 strings a total of six batteries, what we often say 6-cell lithium battery.
Fender
Protection board, which is a protocol based PA3356U-1BRS on SMB1.1 circuit board, with power management functions and charge-discharge management functions.
Protection board, is a protocol based on SMB1.1 circuit board where there are three chips, respectively, as follows: Battery Meter management chip, charge and discharge management chip, and serial EEPROM memory chips.
Fender
To protect the front panel with battery-management chip and charge-discharge measurement management chips
Protection plate on the back with a serial EEPROM memory chips
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