Ducati MULTISTRADA 1200S ABS 2015 Workshop Manual page 314

Recharging the battery
Refer to the label on the battery showing the inspection intervals in order to determine when to test the voltage.
Charge the battery if the open circuit voltage is lower than 12.8 V. Leaving the battery discharged for more than
one month could damage it.
Check the battery charge with a voltmeter.
Always check the condition of the battery before recharging and 1 to 2 hours afterwards.
Warning
Pay careful attention to recharging times. Stop charging immediately if the battery becomes too hot to the touch.
Leave to cool before resuming charging.
Use only constant-voltage battery chargers.
Check that battery terminals are properly connected to the battery charger.
To charge the battery, proceed as follows.
Type of charging
Normal
Use fast charging in emergencies only.
Storing the battery
If the battery voltage is less than or equal to 11.5V, it must be recharged.
Connect the battery charger to the battery.
Use a voltage of 16-17V.
If the ammeter shows no change, increase the voltage to maximum 25V.
Charge for 5 minutes.
If the ammeter shows a change, restore a voltage of 16-17V; otherwise replace the battery.
Volt Ampere (A)
12 1.2
Time (Hours)
5-10