Hybrid Vehicle (Hv) Battery Pack And Auxiliary Battery; Hv Battery Pack; Components Powered By The Hv Battery Pack - Toyota Prius NHW20 Series Dismantling Manual

Hybrid Vehicle (HV) Battery Pack and Auxiliary Battery

The PRIUS contains a 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 sealed in a metal case and is rigidly mounted on the luggage
floor pan cross member behind the rear seat. The metal case is isolated from high
voltage and concealed by a fabric liner in the luggage space.
•
The HV battery pack consists of 28 low voltage (7.2-Volts) NiMH battery modules
connected in series to produce approximately 201.6-Volts.
module is non-spillable and sealed in a plastic 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 forms a
gel that does not normally leak, even in a collision.
•
In the unlikely event that the battery pack is overcharged, the modules vent gases
directly out of the vehicle through a vent hose connected to each NiMH battery module.
HV Battery Pack
Battery pack voltage
Number of NiMH battery modules in the
pack
Battery pack weight
NiMH battery module voltage
NiMH battery module dimensions (inches)
NiMH Battery module weight

Components Powered by the HV Battery Pack

•
Electric Motor
• Electric Generator
•
Electric Powered A/C Compressor
201.6-Volts
28
39Kg (86 lbs)
7.2-Volts
276x20x106mm (11x1x4)
1040g (2.3 lbs)
•
Inverter
• Power Cables
9
Each NiMH battery