Operation Manual

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Appendix A. CRU instructions
Customer Replaceable Units (CRUs) are parts that can be upgraded or
replaced by the customer. If a CRU is determined to be defective during the
warranty period, a replacement CRU will be provi ded to the customer.
Customers are responsible for installing the self-service CRUs for this
product. Customers also can install optional-service CRUs, wh
ich might
require some technical skills or tools, or request that a technician install the
optional-service CRU under the terms of the applicable warranty service
type for your country or region.
Replacing the battery pack - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
To replace the battery pack, do the following:
1 Turn off the computer. Disconnect the AC power adapter and all cables
from the computer.
2 Close the computer display, and turn the computer over.
Notes:
•The illustrations used in this chapter are of the Lenovo M5400, unless otherwise stated.
•The illustrations in this manual might differ from the actual product. Please refer to the
actual product.
Note: Use only the battery provided by Lenovo. Any other battery could ignite or explode.