battery

battery
Rechargeable lithium-ion battery system
Super lithium-iron phosphate 6T high performance battery
NATO Stock Number: 6140-99-380-7294
One 24V Xcelion 6T™ replaces two 12V Pb-acid 6T batteries.
Saft’s Xcelion 6T™ is a 24V battery system
that provides starting, lights and ignition
power for military vehicles, along with
silent watch capabilities.
This ruggedized replacement for lead-acid
batteries utilizes Saft’s proprietary SuperPhosphate® chemistry which is ideally
suited for high performance military
applications and high levels of safety.
Benefits
■■ Only Li-ion 6T that meets cold
temperature performance
requirements
■■ Significant weight savings and life
cycle costs compared to lead-acid
chemistries
■■ Maintenance free
■■ Drop-in replacement for current
vehicle batteries
■■ Internal battery management system
■■ Communicates over J1939 CAN Bus
protocol
■■ Compatible with MIL-STD-1275E power
bus
■■ UN transportation approved
Features
■■ Built-in self-balancing
■■ Fast charging under varying
conditions*
■■ Self shut-down in unsafe conditions
■■ Offered as a COTS solution - high rate
battery production planned in 2015
Applications
■■ Military ground vehicle power
■■ Starting, lights, and ignition
■■ Silent watch
■■ Defense applications requiring
balance of power and energy
Electrical characteristics
Nominal capacity
Nominal voltage
Voltage at full state of charge
Voltage at zero state of charge
Energy
Cold cranking amps (CCA)
at -18 C° for 30 seconds
at -40 C° for 30 seconds
Maximum discharge current
Continuous
Pulse (25 ms)
Maximum charge current
Continuous
Pulse (20 s)
60 Ah
26.4 V
30.0 VDC
20.0 VDC
1.6 kWh
1,100 A
400 A
400 A
3,000 A
250 A
400 A
Mechanical characteristics
Weight
Height
Width
20.7 kg
230 mm
256 mm
Length
269 mm
Operating Conditions
Operating temperature
Discharge
Charge*
Storage and transportation temperature**
-40˚C to +60˚C
-46 ˚C to +71˚C
*Battery manages charge energy to ensure maximum battery life. At low temperature, the battery will
automatically engage built-in heaters for optimum charging.
** Sustained high temperature storage will reduce life.
battery
Top-level system functions
10,000
120 Amp Discharge Run-Time Comparison, 25°C
Pb-acid Watt-hours
8,000
500
Li-ion Watt-hours
Weight (kg) of Pb-Acid 6T
6,000
400
Weight (Kg) of Li-ion 6T
5,000
300
4,000
Weight (Kg)
7,000
200
3,000
2,000
100
1,000
0
0
1
2
3
4
5
6
Number of Batteries
20
18
16
14
12
10
8
6
4
2
0
-40°C: 30s 400 Amp Pulse
(1) X6T
(2) Pb-Acid 6T
MIL-STD-1275E Limit
1
20
18
16
14
12
10
8
6
4
2
0
Min Battery V during Pulse (V)
Min Battery V during Pulse (V)
Safety heritage
■■ System design includes Saft’s field
proven electronic control architecture
that includes overcharge protection,
and over discharge, over temperature
and overload protection.
■■ Cells equipped with hermetic seal and
over pressure safety vent
■■ Rechargeable Li-FePO 4 cells ideally
suited for applications requiring
high discharge, continuous or pulse
power, fast re-charge, long cycle and
calendar life, and high levels of safety.
600
9,000
Watt-Hours
■■ Graphical User Interface Tool allows
detailed view of battery status
■■ Communication of battery state of
charge, temperature, and other key
parameters via J1939 CAN Bus
■■ Redundant overcharge protection
■■ Overload protection
■■ Short circuit protection
■■ Over-discharge protection
■■ Battery reserve protection (preserves
energy for engine start)
■■ Battery monitoring
■■ Built-in-Test
■■ Cell heating (allows full battery
capability over operating temperature)
■■ Continuous cell balancing
2
3
-18°C: 30s 1,100 Amp Pulse
(1) X6T
(2) Pb-Acid 6T
MIL-STD-1275E Limit
1
2
Pulse
10,000,000
3
Pulse
Battery Life - Xcelion 6TTM vs. Pb-acid 6T
1,000,000
Cycle Life
100,000
Saft Xcelion 6T™
Pb-Acid 6T
10,000
1,000
100
Engine Starts
Silent Watch
10
10
20
30
40
50
60
70
80
90
DOD (%)
Saft America, Inc.
Space & Defense Division
107 Beaver Ct.
Cockeysville, MD 21030
Tel.: +1 410-771-3200
Fax: +1 410-771-1144
Email: SaftDefenceUS@saftbatteries.com
www.saftbatteries.com
Saft SAS
Space & Defense Division
Rue Georges Leclanché
86000, Poitiers
Tel.: +33 (0) 549 551 866
Fax: ++33 (0) 549 554 780
www.saftbatteries.com
Doc N° 32048-2-0315
Edition: March 2015
Information in this document is subject to change
without notice and becomes contractual only after
written confirmation by Saft.
Published by the Communications Department
Photo credit: Saft
100