The BIOS CMOS battery is an essential part of the LENOVO THINKPAD X240 X250 laptop. This battery ensures that the BIOS settings and memory are retained even when the laptop is turned off. If the battery malfunctions, it can lead to problems such as lost settings or error messages when starting up the laptop. Replacing the battery is therefore an important step to ensure that the laptop continues to function optimally. This specific BIOS CMOS battery is suitable for the LENOVO THINKPAD X240 X250 and has part number 45N5864 and FRU 45N5863. The 2 pin Molex Plug makes it easy to connect the battery to the laptop's motherboard. This ensures a quick and easy installation, so you can quickly get back to work with your refurbished laptop. Using refurbished parts such as this BIOS CMOS battery is a sustainable choice. By using reconditioned parts you contribute to a circular economy and reduce your ecological footprint. Refurbished parts have been thoroughly tested and reconditioned to meet the highest quality standards, so you can count on the same reliability as new parts. By choosing refurbished parts like this BIOS CMOS battery for the LENOVO THINKPAD X240 X250, you not only save money, but you also help protect the environment. With the guarantee of reliable operation and easy installation, this battery is a smart choice for anyone who wants to keep their laptop in top condition.