Lenovo/IBM ThinkPad X20 battery, as a 6-cell compatible version, has past the strict industrial certification while all the details about these batteries are listed in certain product pages. If you are willing to save power and cost on replacing the laptop batteries, this lithium-ion version for Lenovo/IBM ThinkPad X20 is able to optimize the laptop internal memory, hardware, additional programs and so on by enough power energy. Rated of 10.8 V and 4400 mAh, it is accord with original batteries and can fit with notebook computers well by standard specifications and appearance.
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