Ducati Monster 796 Workshop Manual page 172

Battery charging system
The rectifier/regulator consists of an aluminium casing containing the diodes that rectify the current produced by the
alternator. It also contains an electronic device that regulates the current supplied by the alternator in accordance with
battery voltage.
If the battery is drained, the current has the value necessary to restore optimum operating conditions of the battery.
In contrast, if the battery is fully charged, the current value will be lower.
Note
Check the charging current using the DDS diagnosis instrument following the instructions given in the paragraph
"Checking the battery charging system" (Sect. 6 - 2).
Removal of the regulator
Loosen the retaining screws (3) and (4) and remove the right-hand conveyor (2) from the frame, together with regulator
(1).
Disconnect the generator connector (B) and main wiring harness (A) (Sect. 6 - 1, Routing of wiring on frame).