Hybrid Vehicle (HV) Battery Pack
Hybrid Vehicle (HV) Battery PackThe GS450h contains a high voltage, Hybrid Vehicle (HV) battery pack that contains sealed Nickel Metal Hydride (NiMH) battery modules.
HV Battery Pack
- The HV battery pack is enclosed in a metal case and is securely mounted in the trunk area behind the rear seat. The metal case is isolated from high voltage and concealed by fabric covers.
- The HV battery pack consists of 40 low voltage (7.2-Volt) NiMH battery modules connected in series to produce approximately 288-Volts. Each NiMH battery module is non-spillable and sealed in a plastic case.
- The electrolyte used in the NiMH battery module is an alkaline mixture of potassium and sodium hydroxide. The electrolyte is absorbed into the battery cell plates and forms a gel that will not normally leak, even in a collision.
- In the unlikely event that the battery pack is overcharged, the modules vent gases directly outside the vehicle through a vent hose.
HV Battery Pack
Battery pack voltage 288 V
Number of NiMH battery modules in the pack 40
NiMH battery module voltage 7.2 V
NiMH battery module dimensions 5 x 1 x 11 in (118x20x276 mm)
NiMH module weight 2.3 lbs (1.0kg)
NiMH battery Pack dimensions 13 x 37 x 19 in(333 x 952 x 484 mm)
NiMH battery Pack weight 152.1 lbs (69 kg)
Components Powered by the HV Battery Pack
- Electric Motor
- Power Cables
- Inverter/Converter
- DC-DC Converter
- A/C Compressor
- Electric Generator
HV Battery Pack Recycling
The HV battery pack is recyclable. Contact the nearest Lexus dealer, or:
United States: (800) 255-3987
Canada: (800) 265-3987
Auxiliary Battery
- The GS450h contains a lead-acid 12-Volt battery. The 12-Volt auxiliary battery powers the vehicle's electrical system similar to a conventional vehicle. As with conventional vehicles, the auxiliary battery is grounded to the metal chassis of the vehicle.
- The auxiliary battery is located in trunk. It is concealed by a fabric cover on the driver side in the rear quarter panel well.
Optional Active Stabilizer Suspension System Battery
- The GS450h may be optionally equipped with an active stabilizer suspension system powered by a separate 12-Volt lead-acid battery. Similar to the auxiliary battery, the 12-Volt active stabilizer suspension system battery is grounded to the metal chassis of the vehicle.
- When equipped with the optional active stabilizer suspension system, the GS450h is equipped with run-flat tires, and no spare tire. The active stabilizer suspension system battery is located in the trunk, and concealed under deck fabric and tool tray in the spare tire well.
NOTE:
The 12-Volt battery for the optional active stabilizer suspension system does not power the vehicle's low voltage system. Responders need to identify and distinguish the auxiliary battery from the active stabilizer suspension system battery. When in doubt, during power disconnect, disable both 12-Volt batteries in the trunk.