Ducati DESERTX Owner's Manual page 55

Connect the maintainer (A) to the diagnostics socket
(1).
Note
Using charge maintainers or battery chargers
for lithium batteries not approved by Ducati could
damage motorcycle electric system and/or lithium
battery; motorcycle warranty does not cover the
battery if damaged due to failure to comply with the
above indications, since it is considered as improper
maintenance.
Important
Vehicles equipped with lithium batteries must
never use devices such as Jump Starters or auxiliary
batteries connected in parallel to the lithium battery
if the latter has discharged to a level that does not
allow starting. The cells of a lithium battery, if deeply
discharged, can be irreparably damaged if they are
recharged with unlimited currents, as is the case with
connections to Jump Starters and/or parallel
connections to charged batteries.
When the motorcycle is left unused (approximately
for more than 30 days). We recommend owners to
use the Ducati battery charge maintainer (Battery
maintenance kit) since its electronics monitors the
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battery voltage and features a maximum charge
current of 1.5 Ah. Connect the battery maintainer to
the diagnostic socket.