NISSAN 2011 LEAF - First Responder's Guide - Manual (Page 9)

No. Component Location Description
a Traction Motor Under hood Converts three-phase AC power to drive power
(torque) which propels the vehicle.
b DC/DC Converter –
High voltage junction
box Under hood This component includes a DC/DC converter and
high voltage junction box (J/B). The junction box
provides electric power from the Li-ion battery to
all high voltage parts of the vehicle. The DC/DC
converter reduces the voltage of the Li-ion battery
to provide power to the 12V battery in order to
operate the vehicle’s electric components (head-
lights, audio system, etc.).
c Inverter Under hood Converts the DC power stored in the Li-ion bat-
tery to three-phase AC power and controls motor
torque (revolution) by regulating the motor cur-
rent.
d Electric air condi-
tioner compressor Under hood Air conditioner compressor
e Cabin heater Under hood This is the electric heat source for the cabin
heater. It heats the interior of the vehicle.
f Charge port Under hood Connecting port for EVSE (Electric Vehicle Sup-
ply Equipment). Two ports are available: Normal
charge and quick charge (if so equipped).
᭺ 7 12V Battery Under hood A lead-acid battery that supplies power to the low
voltage devices.
h Li-ion (Lithium ion)
battery Undercarriage Stores and outputs DC power (Maximum voltage
400V) needed to propel the vehicle.
i High voltage cables Undercarriage and
Under hood Orange-colored power cables carry high voltage
current between each of the high voltage compo-
nents.
j High voltage battery
service disconnect Rear seat floor Isolates the battery from the rest of the high volt-
age electrical system.
k On Board Charger Cargo area (This unit
is installed behind a
trim panel to prevent
access) Converts single-phase AC power from a home
power outlet to DC power and increases the volt-
age in order to charge the Li-ion battery.
᭺ 12 Brake power supply
backup unit Cargo area (This unit
is installed behind a
trim panel to prevent
access) Power supply backup unit for the brake system. It
supplies power to the brake system if a malfunc-
tion occurs in the 12V battery.
2-1.1 Li-ion Battery Pack Specifications
Li-ion battery voltage 403.2V
Number of Li-ion battery modules in the pack 48
Li-ion battery dimensions 61.8 x 46.8 x 10.4 in. (1570.5 x 1188 x 264.9 mm)
Li-ion battery weight 648 lbs (294 kg)
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