Genuine Dyson DC56 Mains charger UK Plug

When would this part need replacing?
-When it is damaged
-When the charging light does not appear on the battery when plugged into the charger and the battery is known to be low.
-When you need a spare


Fits The following DC56 models:
DC56 Hard


Genuine Dyson DC56 charger UK plug 230V 917530-10