Lucent Technologies Enhanced VR Series Batteries
8 - 2 Maintenance
Issue 5 December 1998
Maintenance
Routines
When performing any maintenance activities, it is essential to
follow all safety procedures outlined in Section 4.
Section 10, Installation and Maintenance Record, contains a
form for recording the measurable parameters noted in Table
8-A. The maintenance person taking these measurements should
include the date on which measurements were taken as well as
their initials. This information will aid in establishing trends that
can be used to determine overall health of the batteries. The
completed forms will be used for any future warranty claims.
Individual Battery
Voltages
Using a calibrated digital voltmeter with at least two-digit
accuracy, measure the voltage across each battery terminal to
ensure they are floating properly. Record the data in the space
provided on the “Voltage Measurements on Individual
Batteries” portion of the Installation and Maintenance Record.
When making voltage measurements, please note the following:
•
Readings on 2VR250E or 2VR375E should be within
±0.05 volts of the average or ±0.100 volts of the average for
the 4VR125E or 4VR125EL module.
•
Battery float voltage readings are affected by discharges
and recharges. These readings must be taken when the
Warning
An explosion could occur when sparks are created near
the battery string. Use insulated tools and discharge all
static electricity from your body before performing any
work.
Caution
Exercise extreme caution when making voltage readings
to prevent accidental grounding or shorting of leads
during measuring operations. Connections at the meter
must be secure and free of any possibility of touching or
becoming grounded. Never remove connections at the
meter end without first disconnecting the test leads from
the battery. Remove test lead connections at the battery
immediately after each reading is taken. Review the safety
precautions in Section 4.
