Exide Technologies GB3902 User Manual
Installation and operating instructions, Receiving batteries, Placing in service
1. RECEIVING BATTERIES
Immediately upon receipt of shipment, examine the outside
of the packing for signs of rough handling before accepting
battery from carrier. If there is evident damage, the receipt
should be signed and both copies (carrier’s and receiving
copies) marked “Shipment Received Damaged”. The carrier
should be called immediately and asked to make a “Carrier’s
Inspection for Damage Report”.
If “concealed” damage is later detected, the carrier should
be called immediately and requested to make a “Carrier’s
Inspection for Concealed Damage Report”. After inspection
by the carrier, arrangements should be made with the local
representative to have the battery repaired before placing it
in service.
2. PLACING IN SERVICE
All ELEMENT
®
batteries must be given an equalizing charge
prior to their use. To accomplish this, connect the battery to
an approved GNB
®
charger and commence charging until
the automatic charge control terminates.
3. CHARGING
The charger must be matched to the battery with respect to
voltage and ampere-hour capacity. The charger must be an
approved GNB
®
charger with a constant current-constant
voltage-constant current profile that has automatic charge
control features and a nominal finish rate of 2 amps per 100
ampere-hours of rated capacity. The constant voltage
portion of the curve is 2.37 volts per cell. Under no
circumstances should you attempt to remove the safety
relief-valve vent cap. Such removal shall void the battery’s
warranty and seriously impair battery performance.
4. COOL DOWN
When the battery reaches an 80% depth of discharge,
disconnect battery from the lift truck and connect to an
approved GNB
®
charger. The battery will normally reach full
charge in eight hours or less. Once the charge is complete,
the battery must be allowed to cool down for eight hours. At
a minimum, the battery must be allowed to cool down for a
time period equal to the time period spent on charge.
5. EQUALIZING CHARGE
Each cell of a ELEMENT
®
battery may have slight
differences in uniformity of construction and content. These
slight differences cause some cells to take less charge than
the other cells in the battery. To bring the cells with a lower
state of charge up to the same level as the others, the
battery is given an “equalizing charge”. The battery should
be given an equalizing charge after 50-100 hours of
operation. If you are unsure of battery use hours, give the
batteries an equalize charge every two weeks.
6. AGV CHARGING
The battery/charger systems are “BALANCED” on each
AGV application to maintain a design operating “STATE OF
CHARGE” within the battery. This state of charge is
dependent on such factors as:
• AMP-HOUR USED
• CHARGE TIME ALLOWED
• CHARGE CURRENT
Any plant operations that will cause these factors to deviate
significantly from the original design could cause sufficient
battery/charger imbalance affecting the battery life and
performance. Plant deviations such as:
• Plant Shutdowns
• Extended Testing
• Duty Cycle Change • Vacations
have the potential to cause these imbalances. In
general, when opportunity charging is being used, any non-
operational period of greater than 24 hours should be
controlled to prevent extended battery charging. This can
be accomplished in an AGV application by using the vehicle
P O S T T H E S E I N S T R U C T I O N S I N
B A T T E R Y M A I N T E N A N C E A R E A .
USE OF ANY CHARGERS OTHER THAN APPROVED GNB
®
CHARGERS CAN RESULT IN PERMANENT BATTERY
DAMAGE. CONTACT YOUR LOCAL GNB
®
INDUSTRIAL
POWER
REPRESENTATIVE TO VERIFY PROPER
CHARGING.
OPPORTUNITY CHARGING IS NOT PERMITTED, EXCEPT IN
APPROVED AGV APPLICATIONS.
BATTERY REQUIRES COOL DOWN PERIOD
FOLLOWING A CHARGE EQUAL IN TIME TO
CHARGE PERIOD. FAILURE TO ALLOW FOR
COOL DOWN WILL SHORTEN BATTERY LIFE.
BEFORE PLACING BATTERIES IN SERVICE,
REVIEW AND ADHERE TO THE
SAFETY GUIDELINES (ITEM 7).
INSTALLATION AND OPERATING INSTRUCTIONS
MOTIVE POWER VALVE REGULATED
LEAD ACID (VRLA) BATTERIES
PLEASE READ BEFORE PLACING BATTERIES IN SERVICE
THESE INSTRUCTIONS TO BE SHIPPED WITH BATTERY AND TO BE DELIVERED TO USER