The activation of this (amber yellow) "warning" indicates that the status of the battery vehicle is low.
It is activated when the battery voltage is ¼ 11.0 Volt.
Note
In this case, ducati recommends charging the battery as soon as possible with the specific device, as it is possible that the vehicle will not start.

Warning indication (alarms/signals)
Traction control (dtc) deactivatedBelly fairing
Rh belly fairing
Lh belly fairing
Special screw
Nylon washer
Screw
Central belly fairing
Oil cooler shield
Special screw
Clip
Washer
Clip
Screw
Bracket
Screw
Spare parts catalogue
Diavel abs belly fairing
Diavel carbon
abs
belly fairing
Important
Bold refere ...
Routine maintenance record
...
Removing the electrical components support
Remove the following elements located inside the electrical components
support:
The battery fixing bracket (4) and the battery (14) as specified under
section 6 - 2, battery;
The voltage regulator (3) as specified under section 6 -
2,rectifier-regulator;
The solenoid starter (18) ...