Step 2B: Remove Battery - Lenovo ThinkSystem DE6400 Manual

7. Using two hands and the handles, slide the controller canister out of the shelf. When the front of
the controller is free of the enclosure, use two hands to pull it out completely.

Always use two hands to support the weight of a controller canister.
8. Place the controller canister on a flat, static-free surface.

Step 2b: Remove battery

Remove the battery from the failed controller canister so you can install it in the new controller
canister.
Steps
1. Remove the controller canister's cover by unscrewing the single thumbscrew and lifting the lid
open.
2. Locate the 'press' tab on the side of the controller.
3. Unlatch the battery by pressing the tab and squeezing the battery casing.
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