Lexus IS300h - Hybrid Battery Pack and Auxiliary Battery; HV Battery Pack Specifications; Components Powered by HV Battery Pack

Hybrid Vehicle (HV) Battery Pack and Auxiliary Battery
The IS300h 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 spare tire area.
The metal case is isolated from high voltage and concealed by fabric covers in the trunk.
• 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
NiMH battery module dimensions
(Width x Length x Height)
10.9 x 0.8 x 4.2 in
(276 x 20 x 106 mm)
NiMH module weight 2.3 lbs (1.0 kg)
NiMH battery pack dimensions
(Width x Length x Height)
29.4 x 21.3 x 9.1 in
(748 x 540 x 231.5 mm)
NiMH battery pack weight 109 lbs (49.5 kg)
Note: Values in inches have been rounded
Components Powered by the HV Battery Pack
• Electric Motor • Power Cables
• Electric Generator • A/C Compressor
• Inverter/Converter
- DC-DC Converter for 12 Volt Auxiliary Battery
10