HYBRID VEHICLE (HV) BATTERY PACK
AND AUXILIARY BATTERY
The RX400h contains a next generation high
voltage, Hybrid Vehicle (HV) battery pack and a low
voltage auxiliary battery. The HV battery pack
contains non-spillable, sealed Nickel Metal Hydride
(NiMH) battery modules and the auxiliary battery is
a typical automotive lead-acid type.
HV Battery Pack
•
The HV battery pack is enclosed in a metal case
and is rigidly mounted to the cabin area floor
pan cross member under the rear seat. The
metal case is isolated from high voltage and
concealed by a cover in the cabin area.
•
The HV battery pack consists of 30 low voltage
(9.6-Volt) NiMH battery modules connected in
series to produce approximately 288-Volts. Each
NiMH battery module is non-spillable and
sealed in a metal case.
•
The electrolyte used in the NiMH battery
module is an alkaline of potassium and sodium
hydroxide. The electrolyte is absorbed into the
battery cell plates and will form a gel that will
not normally leak, even in a collision.
•
In the unlikely event the battery pack is
overcharged, the modules vent gases directly
outside the vehicle through a vent hose.
Components Powered by the HV Battery Pack
•
Front Electric Motor
•
Rear Electric Motor
•
Inverter/Converter
•
A/C Compressor
•
Electric Generator
•
Power Cables
•
Electric Power Steering
– 7 –
HV BATTERY PACK
Battery pack voltage
288-Volts
Number of NiMH battery
modules in the pack
30
NiMH battery module voltage 9.6-Volts
NiMH battery
pack dimensions
63x108x18cm
NiMH Battery pack weight
69kg
288-Volt HV Battery Pack
HV Battery Pack Mounted in
Cabin Area
