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Exide Technologies GB3902 User Manual

Installation and operating instructions, Receiving batteries, Placing in service

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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