Lucent Technologies VR Series User manual

Enhanced VR Series Batteries
KS-23619
Product Manual
Select Code 157-622-011
Comcode 107817074
Issue 5
December 1998
© 1998 Lucent Technologies

Product Manual
KS-23619
Select Code 157-622-011
Comcode 107817074
Issue 5
December 1998
Lucent Technologies
Enhanced VR Series Batteries
Notice:
Every effort was made to ensure that the information in this
document was complete and accurate at the time of printing.
However, information is subject to change.
© 1998 Lucent Technologies
All Rights Reserved
Printed in U.S.A.

Lucent Technologies Enhanced VR Series Batteries
Issue 5 December 1998 Table of Contents - 1
Table of Contents
1 Introduction
Enhanced VR Batteries 1 - 1
Customer Training 1 - 3
Customer Service 1 - 3
Technical Support 1 - 3
Product Repair and Return 1 - 3
Warranty Service 1 - 3
2 Product Description
Overview 2 - 1
Features 2 - 2
Specifications 2 - 2
Battery Serial Number 2 - 2
Batteries 2 - 2
3 Ordering Information
Configurations 3 - 1
Battery Modules 3 - 2
4 Safety and Environmental
Safety Symbols 4 - 1
Safety Precautions 4 - 1
Poison 4 - 1
Electrical Hazard 4 - 3
Battery Gases 4 - 4
First Aid 4 - 6
Lifting Information 4 - 6
Transportation and Handling 4 - 6
Environmental 4 - 6
5 Battery Storage
State of New Battery 5 - 1
Storage Conditions 5 - 1

Lucent Technologies Enhanced VR Series Batteries
2 - Table of Contents Issue 5 December 1998
Storage Time 5 - 1
6 Installation
Introduction 6 - 1
Installation Tools, Materials, and Test Equipment 6 - 1
Product Manual 6 - 1
Unpacking and Handling 6 - 2
Safe Handling 6 - 2
Specific Unpacking Instructions 6 - 2
Battery String Location 6 - 4
Environmental Requirements 6 - 4
Mixing Batteries in a String 6 - 5
Initial Charging 6 - 6
Placing a Battery String Into Service 6 - 8
Installation Records 6 - 8
Voltage Measurements 6 - 8
7 Operation
Lead-acid Battery Gassing Rate 7 - 1
Service Life 7 - 2
Charging 7 - 2
Battery String Float Voltage 7 - 3
Charging Voltage Ripple 7 - 4
Battery and Ambient Temperatures 7 - 4
Capacity 7 - 5
Temperature Correction for Capacity 7 - 5
Example 7 - 5
Discharge Capacity Test 7 - 7
Recharge After Discharge 7 - 8
Boost Charge 7 - 8
8 Maintenance
Maintenance Schedule 8 - 1
Maintenance Routines 8 - 2
Individual Battery Voltages 8 - 2
Measuring Battery Temperatures 8 - 3
String Current Measurement 8 - 3
Inspection and Cleaning 8 - 3
Retorquing Inter-battery Connections 8 - 3
Flame Arrestor Vent Feature 8 - 4
Battery Replacement 8 - 4

Lucent Technologies Enhanced VR Series Batteries
Issue 5 December 1998 Table of Contents - 3
9 Discharge and Power Data
Constant Current Discharge Data 9 - 1
Constant Power Discharge Data 9 - 7
High Discharge Rate Performance 9 - 13
10 Installation and Maintenance Record
11 Material Safety Data Sheet
12 Product Warranty

Lucent Technologies Enhanced VR Series Batteries
Issue 5 December 1998 List of Figures - 1
List of Figures
Figure 1-1: Enhanced VR Batteries (Shown with
Metal Sleeve) 1 - 2
Figure 6-1: Enhanced VR Battery Handle 6 - 2
Figure 7-1: Temperature Correction Chart 7 - 6
Figure 8-1: Replacing a Battery Module 8 - 5
Figure 9-1: Constant Current Discharge Data
to 1.75 Volts 9 - 3
Figure 9-2: Constant Current Discharge Data
to 1.80 Volts 9 - 4
Figure 9-3: Constant Current Discharge Data
to 1.82 Volts 9 - 4
Figure 9-4: Constant Current Discharge Data
to 1.84 Volts 9 - 5
Figure 9-5: Constant Current Discharge Data
to 1.86 Volts 9 - 5
Figure 9-6: Constant Current Discharge Data
to 1.88 Volts 9 - 6
Figure 9-7: Constant Current Discharge Data
to 1.90 Volts 9 - 6
Figure 9-8: Constant Current Discharge Data
to 1.92 Volts 9 - 7
Figure 9-9: Constant Power Discharge Data
to 1.75 Volts 9 - 9
Figure 9-10: Constant Power Discharge Data
to 1.80 Volts 9 - 9
Figure 9-11: Constant Power Discharge Data
to 1.82 Volts 9 - 10

Lucent Technologies Enhanced VR Series Batteries
2 - List of Figures Issue 5 December 1998
Figure 9-12: Constant Power Discharge Data
to 1.84 Volts 9 - 10
Figure 9-13: Constant Power Discharge Data
to 1.86 Volts 9 - 11
Figure 9-14: Constant Power Discharge Data
to 1.88 Volts 9 - 11
Figure 9-15: Constant Power Discharge Data
to 1.90 Volts 9 - 12
Figure 9-16: Constant Power Discharge Data
to 1.92 Volts 9 - 12

Lucent Technologies Enhanced VR Series Batteries
Issue 5 December 1998 List of Tables - 1
List of Tables
Table 2-A: Enhanced VR Battery Specifications 2 - 3
Table 3-A: Enhanced VR Battery Modules 3 - 2
Table 6-A: Initial Charging 6 - 7
Table 7-A: Recommended String Float Voltages 7 - 4
Table 8-A: Maintenance Routines 8 - 1
Table 9-A: 2VR375E Constant Current Discharge Data 9 - 2
Table 9-B: 4VR125EL Constant Current Discharge Data 9 - 2
Table 9-C: 2VR250E Constant Current Discharge Data 9 - 3
Table 9-D: 2VR375E Constant Power Discharge Data 9 - 7
Table 9-E: 4VR125EL Constant Power Discharge Data 9 - 8
Table 9-F: 2VR250E Constant Power Discharge Data 9 - 8
Table 9-G: High Discharge Rate Performance 9 - 13
Table 12-A: New Battery Warranty Periods and
Conditions 12 - 1

Lucent Technologies Enhanced VR Series Batteries
Issue 5 December 1998 Introduction 1 - 1
1 Introduction
Enhanced VR
Batteries This product manual (Select Code 157-622-011) provides
information on Lucent Technologies’ Enhanced VR Series
batteries, which are available in both 2- and 4-volt models. The
Enhanced VR Series battery is a stationary, valve-regulated,
rechargeable, lead-acid battery designed by Bell Laboratories,
an acknowledged leader in technology, research, and design of
power systems.
Lucent Technologies’ power products have proved their field
reliability by providing dependable standby reserve power for
the telecommunications industry for decades. All battery
components and manufacturing processes meet Lucent
Technologies’ strict specifications and quality standards.
Especially useful in applications where space is limited and
minimal maintenance is desired, the Enhanced VR Series
batteries are an excellent choice for remote-switching offices
and subscriber loop applications (such as Lucent Technologies’
SLC®96 and Series 5 carrier systems), 80E Bulk Power
Cabinets, space-restricted power locations, customer premises
applications, small- to medium-sized central offices, electric
utility substations, and cellular sites.
Figure 1-1 illustrates the different models of the Enhanced VR
Series batteries.

Lucent Technologies Enhanced VR Series Batteries
1 - 2 Introduction Issue 5 December 1998
Figure 1-1: Enhanced VR Batteries (Shown with Metal Sleeve)
++
+
+
+
+
2 Volt, 375 Ah Battery
(Model 2VR375E)
2 Volt, 250 Ah Battery
(Model 2VR250E)
4 Volt, 125 Ah Battery
(Model 4VR125EL)
4 Volt, 125 Ah Battery
(Model 4VR125E)
Lucent
Lucent
Lucent

Lucent Technologies Enhanced VR Series Batteries
Issue 5 December 1998 Introduction 1 - 3
Customer
Training Lucent Technologies offers customer training on many Power
Systems products. For information call 1-972-284-2163. This
numberisansweredfrom8:00a.m. until4:30p.m.,Central Time
Zone (Zone 6), Monday through Friday.
Customer
Service Forcustomers in the United States,Canada, Puerto Rico, andthe
US Virgin Islands, call 1-800-THE-1PWR (1-800-843-1797).
Services provided through this contact include initiating the
spare parts procurement process for out of service emergencies,
ordering Lucent Technologies documents, and providing other
product and service information.
For other customers worldwide, call 001-972-840-0382. This
numberisansweredfrom8:00a.m. until4:30p.m.,Central Time
Zone (Zone 6), Monday through Friday.
Technical
Support Technical support for Lucent Technologies customers is
available around the world during the normal product warranty
period and also while specific contractual agreements extend
this service.
For customersin the UnitedStates,Canada, Puerto Rico, andthe
US Virgin Islands, call 1-800-CAL-RTAC (1-800-225-7822) to
contact a product specialist to answer your technical questions
and assist in troubleshooting problems.
For other customers worldwide, contact your local field support
center or your salesrepresentative to discuss your specific needs.
Product Repair
and Return Repair and return service is provided for Lucent Technologies
customers around the world. For customers in the United States,
Canada, Puerto Rico, and the US Virgin Islands, call
1-800-255-1402 for information on returning of products for
repair.
For other customers worldwide, contact your sales
representative to discuss your particular circumstances.
Warranty
Service For warranty service worldwide, contact your Warranty Service
Manager (WSM). The WSM serves specific customer-groups,
who have taken ownership of the product. For product

Lucent Technologies Enhanced VR Series Batteries
1 - 4 Introduction Issue 5 December 1998
conformance issues prior to customer ownership, contact your
local customer service.

Lucent Technologies Enhanced VR Series Batteries
Issue 5 December 1998 Product Description 2 - 1
2 Product Description
Overview A 2-volt 125Ah cell is the building block used to construct the
Enhanced VR Series family of batteries. These modules may be
mounted in a variety of ways to meet individual customer needs.
The valve-regulated design and construction of the Enhanced
VR Series batteries prevents electrolyte leakage and minimizes
water loss and maintenance throughout the design life. During
normal operation, oxygen is generated at the positive electrode
and hydrogen is generated at the negative electrode. In
conventional (flooded) lead-acid cells, these electrochemical
reactions result in water loss from the electrolyte. The
self-resealing pressure release safety valves in Enhanced VR
Series batteries are designed to aid in the electrochemical
recombination of nearly all the oxygen within the battery. In
addition, the safety valves prevent the build-up of excessive
internal pressure.
Like other Lucent Technologies valve-regulated batteries, the
Enhanced VR batteries’ pure lead positive grid is the key to a
slow, uniform growth rate that promotes longer life. This slow
growth rate, combined with extremely lowwaterloss, allowsthe
cell to maintain capacity over its 20-year design life at room
temperature operation.
The Enhanced VR batteries are ideal for most operating
environments because of its leakproof seals, high-strength,
flame-resistant PPO/PSjar and cover, lowgassing rate, andhigh
energy density. The patented metal sleeves improve heat
dissipation and add dimensional support to the battery at the
higher operating temperatures.
The Enhanced VR Series batteries comply with the requirement
for sealed battery/cell pressure release test of UL924, Standard

Lucent Technologies Enhanced VR Series Batteries
2 - 2 Product Description Issue 5 December 1998
for Emergency Lighting and Power Equipment, and UL1989,
Standard for Standby Batteries.
Features • Bell Laboratories’ patented lead/tin alloy post, leakproof
post seal, and valve-regulated design require minimal
maintenance.
• An Enhanced VR battery consists of compact, modular cells
that permit up to 750Ah of 48V battery reserve (at a 10-hour
rate) to be installed in a single VR battery stand.
• The totally front-access, modular design allows easy
installation and growth. In addition, the removable handle
facilitates battery replacement, if required.
• Flame-retardant (UL 94 V-O flammability rating) PPO/PS
jar and cover material together with metal cell sleeves
support longer life by providing jar rigidity for
higher-temperature applications.
• Each 2-volt, 125Ah cell contains a pressure-regulating vent
located in the jar cover. The vent is covered with a porous
plastic disk that acts as a flame arrestor. In multi-cell
configurations, the vents and flame arrestors are hidden
from view by the bus bar cover.
Specifications
Battery Serial
Number Each battery has itsown serial number printedon the front label.
The serial number format consists of a letter code followed by
ten digits. The letter identifies the supplier as well as the
manufacturing location. The first four digits indicate the year
and the monthof manufacture;the remaining digits are the serial
number.
L9504123456means that this battery was manufactured in April
1995, and has a serial number of 123456.
Batteries Table 2-A outlines the weight, physical dimensions,
ampere-hour rating (measured at the 10-hour rate), and the
recommended float voltages for the Enhanced VR modules.

Lucent Technologies Enhanced VR Series Batteries
Issue 5 December 1998 Product Description 2 - 3
Table 2-A: Enhanced VR Battery Specifications
Model** Width
in. (mm) Height in. (mm) Depth in. (mm) Weight lb. (kg) Ah Rating Float Voltage*
2VR250E 3.54
(89.9) 9.36 (237.7) 16.78 (426.2) 53-55 (24-25) 250 2.25 - 2.27
2VR375E 3.54
(89.9) 9.36 (237.7) 24.5 (622.3) 80-83 (36-38) 375 2.25 - 2.27
4VR125E 3.54
(89.9) 9.90 (251.1) 15.5 (397.7) 53-55 (24-25) 125 4.50- 4.54
4VR125EL 3.54
(89.9) 9.36 (237.7) 16.78 (426.2) 53-55 (24-25) 125 4.50- 4.54
*With no temperature compensation (see Table 7-A for details).
**Batteries with 250Ah and 375Ah ratings have only the low profile top cover and are
available in one height size (9.36"). The 4VR125E battery with 125Ah rating has the
high profile top cover and a height of 9.90". The 4VR125EL battery with 125Ah
rating has the low profile top cover and a height of 9.36".