Lexus RC300h - High Voltage Battery System

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Hybrid Vehicle (HV) Battery Pack and Auxiliary Battery
The RC300h features 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 rigidly mounted to the luggage
compartment area. The metal case is isolated from high voltage and concealed by fabric
covers in the cabin area.
 The HV battery pack consists of 32 low voltage (7.2 Volt) NiMH battery modules
connected in series to produce approximately 230.4 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 mixture of potassium and
sodium hydroxide. The electrolyte is absorbed into the battery cell plates and will not
normally leak, even in a collision.
HV Battery Pack
Battery pack voltage
230.4 V
Number of NiMH battery modules in the pack
32
NiMH battery module voltage
7.2 V
Components Powered by the HV Battery Pack
 Electric Motor
 Power Cables
 A/C Compressor
 Electric Generator
 Inverter/Converter
- DC-DC Converter for 12 Volt Auxiliary Battery