Nautel NAB05E, Technical Instructions, Page: 25 / 45

48 VOLT BATTERY CHARGER
NAB05E
Page 4-2
01 September 2004
FAULT INDICATION
4.7
There is no provision to automatically indi-
cate a fault has occurred in the battery charger or the
batteries being charged. The only way to determine
the battery charger is functioning normally is to
periodically measure the voltage of the batteries
connected to the battery charger. They should be
maintained at their fully charged state, unless the
equipment that is connected to them is or has recently
been drawing current from the batteries. Check the
specific gravity of the electrolyte (with a hydrometer)
in batteries that have removable caps on their cells.
The only way to verify the battery charger is fully
operational is to partially discharge the batteries and
verify the battery charger recharges the batteries at the
desired rate and then switches off when the fully
charged state is obtained.