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1
Introduction
1.1
LITE Lithium Battery Technology
The LITE Battery Unit has been specifically designed for
demanding applications such as telecom, energy storage,
renewable energy and hybrid power solutions. NorthStar
LITE delivers high energy density and excellent cyclic
endurance without compromising safety. Each Battery Unit
consists of lithium-ion cells and a battery management
system, BMS, encased in an outer housing.
The LITE Battery Units are designed to fit in a 19" rack.
Up to ten (10) Battery Units can be connected in parallel to
increase the available energy. The LITE Battery Units can
operate in combination with lead acid batteries, even
when the charge voltage is low and no boost voltage
functionality is available. The system is also designed for
re-use of existing site cabling and accommodates dual M8
cable lugs (commonly available for AGM batteries).
1.1.1 Battery Cell
The LITE Battery Unit is based on a Li-ion cell with the
lithium iron phosphate (LFP) chemistry. LFP offers
exceptional lifetime, high specific power and cyclic
endurance in combination with good safety characteristics.
The battery cells utilized in the Battery Unit are of
prismatic type with laser-welded aluminum casings. Each
cell has a safety vent, which enables the release of over-
pressures in case of a thermal runaway situation.
1.1.2
Front Panel
2
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8
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1
Negative terminal
2
Circuit Breaker, CB
3
Positive terminal
4
Grounding point.
5
Handles
6
Fastening bracket for 19"-racks
7
Capacity, see chapter 2.4 for more information on
behavior.
8
Alarm, see chapter 4.5 for more information on
behavior.
9
Run, see chapter 4.5 for more information on
behavior.
10
ADD, Address extension Dip switch, see chapter 4.4.2
for more information.
11
RS232. RS232 communication port is used to upload
data from BMS to a monitoring system.
12
RS485. RS485 communication port is used for
communication between batteries and to upper host.
For more information see 4.5
13
Reset, RST. The reset button can be used to recover
the Battery unit.
14
Dry contact
1.2
Definitions
The definition for each of the following terms or
abbreviations describes the context employed throughout
this document.
Battery unit: Functional unit for storage of electrical power
with a nominal voltage of 48 V.
BMS: Battery management system.
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