Hv Battery Pack; Components Powered By The Hv Battery Pack - Lexus RX 400h MHU33 Series Manual

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

N
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.
N
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.
N
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.
N
In the unlikely event the battery pack is overcharged, the modules vent gases directly
outside the vehicle through a vent hose.
HV Battery Pack
Battery pack voltage
Number of NiMH battery modules in the pack
NiMH battery module voltage
NiMH battery pack dimensions
NiMH battery Pack weight

Components Powered by the HV Battery Pack

N
Front Electric Motor
N
Inverter/Converter
N
Electric Generator
N
Electric Power Steering
N Rear Electric Motor (with 4WD)
N A/C Compressor
N Power Cables
9
288Volts
30
9.6Volts
25 x 43 x 7 in
63 x 108 x 18 cm
153.0lbs
69 kg