Lenovo ThinkServer RD240 Software User's Manual page 325

Figure 9.15 Battery Backup Unit Operations
4. Select Set Learn Cycle Properties.
The options appear in the right frame.
5. To enable automatic learn cycles, click Enable automatic learn
cycles and click Go.
You can delay the start of the next learn cycle by up to 7 days
(168 hours) using the Delay next learn cycle field.
6. To disable automatic learn cycles, click Disable automatic learn
cycles and click Go.
You can start the learn cycles manually. In addition, you can check
the box next to the field Remind me when to start a learn cycle to
receive a reminder to start a manual learn cycle.
Monitoring Battery Backup Units 9-25