Lenovo Horizon 2e Table PC - Manual (Page 34)

Replacing the battery
Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the base cover.
To replace the battery:
Step 1. Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating
system, and turn off the computer and all attached devices.
Step 2. Unplug all power cords from electrical outlets.
Step 3. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)
cables, and any other cables that are connected to the computer. Refer to “Left and right view”
and “Rear view” for help with locating the various connectors.
28 Lenovo HORIZON 2e All-In-One PC Hardware Maintenance Manual