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Hybrid electric military
vehicle battery (HEMV)
Rechargeable lithium-ion battery system
High power lithium-ion battery system for hybrid electric military ground vehicles
Saft’s HEMV battery system provides
power to the vehicles’ engine while it
is not relying on fuel. The battery is
comprised of between 5 and 8 high power
VL 34P Li-ion modules, depending on the
specific power needs of the application.
Saft supplies complete energy storage
systems customized as needed to meet
customer specifications.
Benefits
■■ Very high specific energy
■■ Very high power
■■ Maintenance free
■■ Light weight
■■ Fast re-charge
■■ Low life cycle costs
■■ Reliable and safe
Features
■■ Air cooling with optional liquid cooling
■■ Carbon negative
■■ Nickel oxide-based positive
■■ Integrated electronic management
system
■■ CanBus communication interface with
vehicle
■■ Can be configured with differing
numbers of modules depending on
power needs (see Doc No 32016-20607 for more information on the VL
34P module)
Applications
■■ Hybrid electric military vehicles
■■ Defense
■■ Exportable power
■■ Silent watch
■■ Propulsion
■■ Applications requiring a combination
of power and energy
Electrical characteristics
HEMV-5
Nominal voltage at 50% SCO
Charge limit
Discharge limit
Maximum continuous current at 25˚C*
Peak power at 50% SOC*
Continuous power at 50% SOC*
Energy
Specific energy
Capacity
Impedance at 5 sec (250 A discharge)
219 V 307 V
246 V 344 V
150 V 210 V
200+ A
98.3 kW 138 kW
53 kW 74 kW
6.6 kWh 9.2 kWh
66 Wh/kg
30 Ah
65mΩ 85 mΩ
Mechanical characteristics
HEMV-5
Weight
220 lbs / 100kg
Height
HEMV-7
310 lbs / 140 kg
9 in / 229 mm
Width
18.5 in / 470 mm
Length
25 in / 635 mm
Operating Conditions
HEMV-5
Operating temperature
Storage and transportation temperature
Doc N° 32017-2-0608
Edition: August 2012
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
35 in / 890 mm
HEMV-7
-30˚C to +60˚C
-40˚C to +65˚C
*Power and current ratings dependent upon cooling conditions and fuze sizing
Saft
107 Beaver Ct.
Cockeysville, MD 21030
Tel.: +1 410-771-3200
Fax: +1 410-771-1144
Email: [email protected]
www.saftbatteries.com
HEMV-7
e6T battery
Top-level system functions
■■ Communication of battery state of
charge, temperature, and other key
parameters vis J1939 CAN Bus
■■ Redundant overcharge protection
■■ Overload protection
■■ Short circuit protection
■■ Over-discharge protection
■■ Battery reserve protection
■■ Battery monitoring
■■ Built-in-Test
■■ Cell heating (Arctic conditions and
battery charging)
■■ Continuous/off-line cell balancing
1000 Amp power test at -18˚C
Safety heritage
■■ System design includes Saft proven
redundant overcharge protection
■■ Cells equipped with hermetic seal and
over pressure safety vent
■■ VLP cells use Saft’s fielded nickel
cobalt aluminum (NCA) lithium-ion
chemistry
Saft
107 Beaver Ct.
Cockeysville, MD 21030
Tel.: +1 410-771-3200
Fax: +1 410-771-1144
Email: [email protected]
www.saftbatteries.com
Doc N° 32033-2-0812
Edition: August 2012
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
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