2020 HYUNDAI IONIQ auxiliary battery

H3
Electric Vehicle
An electric vehicle is driven using a
battery and an electric motor. While
general vehicles use an internal
combustion engine and gasoline as
fuel, electric vehicles use electrical
energy that is charged inside the
high voltage battery. As a result,
electric vehicles are eco-friendly in
that they do not require fuel and do
not emit exhaust gases.
Characteristics of Electric
Vehicles
1. It is driven using the electrical
energy that is charged inside the
high voltage battery. This method
prevents air pollution since fuel,
like gasoline, is not required,
negating the emission of exhaust
gases.
2. A high performance motor is used
in the vehicle as well. Compared
to standard, internal combustion
engine vehicles, engine noise and
vibrations are much more minimal
when driving.
3. When decelerating or driving
downhill, regenerative braking is
utilized to charge the high voltage
battery. This minimizes energy
loss and increases the distance to
empty.
4. When the battery charge is not
sufficient, AC charge, DC charge
and trickle charge are available.
(Refer to "Charge Types for
Electric Vehicle" for details.)
Information
What does regenerative braking do?
It uses the electric motor when decel-
erating or braking which transforms
vehicle motion (kinetic energy) to elec-
trical energy to charge the high volt-
age batteries. (Torque is applied in the
opposite direction when decelerating
to generate braking force and electric
energy.)
Battery Information
• The vehicle is composed of a high
voltage battery that drives the
motor and air-conditioner, and an
auxiliary battery (12 V) that drives
the lamps, wipers, and audio sys-
tem.
The auxiliary battery is automati-
cally charged when the vehicle is in
the ready ( ) mode or the high
voltage battery is being charged.
i
E EL
LE
EC
CT
TR
RI
IC
C
V
VE
EH
HI
IC
CL
LE
E

H16
C CH
HA
AR
RG
GE
E
I
IN
ND
DI
IC
CA
AT
TO
OR
R
L
LA
AM
MP
P
F
FO
OR
R
E
EL
LE
EC
CT
TR
RI
IC
C
V
VE
EH
HI
IC
CL
LE
E
Charging Status
When charging the high voltage bat-
tery, the charge level can be checked
from outside the vehicle.
OAEEQ016025
Operation of Charging Indicator LampDetails(1)(2)(3)
(OFF)(OFF)(OFF)Not Charged
Blink(OFF)(OFF)
Charging
0~33%
(ON)Blink(OFF)34~66%
(ON)(ON)Blink67~99%
(ON)(ON)(ON)Fully charged (100%)(turns OFF in 5 seconds)
BlinkBlinkBlinkError while charging
(OFF)(OFF)BlinkCharging 12 V auxiliary battery or scheduled air con-
ditioner is operating
(OFF)Blink(OFF)
- Reserved charging is operating
(turns OFF after 3 minutes)
- Charging is temporarily interrupted
(e.g. power failure)

H25
Checking Charging Status
When charging the high voltage bat-
tery, the charge level can be checked
from outside the vehicle.
OAEEQ016025
Operation of Charging Indicator LampDetails(1)(2)(3)
(OFF)(OFF)(OFF)Not Charged
Blink(OFF)(OFF)
Charging
0~33%
(ON)Blink(OFF)34~66%
(ON)(ON)Blink67~99%
(ON)(ON)(ON)Fully charged (100%) (turns OFF in 5 seconds)
BlinkBlinkBlinkError while charging
(OFF)(OFF)BlinkCharging 12 V auxiliary battery or scheduled air con-
ditioner is operating
(OFF)Blink(OFF)
- Reserved charging is operating
(turns OFF after 3 minutes)
- Charging is temporarily interrupted
(e.g. power failure)

H31
Checking Charging Status
When charging the high voltage bat-
tery, the charge level can be checked
from outside the vehicle.
Information
Depending on the condition and dura-
bility of the high voltage battery,
charger specifications, and ambient
temperature, the time required for
charging the battery may vary.
i
Operation of Charging Indicator LampDetails(1)(2)(3)
(OFF)(OFF)(OFF)Not Charged
Blink(OFF)(OFF)
Charging
0~33%
(ON)Blink(OFF)34~66%
(ON)(ON)Blink67~99%
(ON)(ON)(ON)Fully charged (100%) (turns OFF in 5 seconds)
BlinkBlinkBlinkError while charging
(OFF)(OFF)BlinkCharging 12 V auxiliary battery or scheduled air con-
ditioner is operating
(OFF)Blink(OFF)
- Reserved charging is operating
(turns OFF after 3 minutes)
- Charging is temporarily interrupted
(e.g. power failure)
OAEEQ016025

H39
Checking Charging Status
When charging the high voltage bat-
tery, the charge level can be checked
from outside the vehicle.
OAEEQ016025
Operation of Charging Indicator LampDetails(1)(2)(3)
(OFF)(OFF)(OFF)Not Charged
Blink(OFF)(OFF)
Charging
0~33%
(ON)Blink(OFF)34~66%
(ON)(ON)Blink67~99%
(ON)(ON)(ON)Fully charged (100%) (turns OFF in 5 seconds)
BlinkBlinkBlinkError while charging
(OFF)(OFF)BlinkCharging 12 V auxiliary battery or scheduled air con-
ditioner is operating
(OFF)Blink(OFF)
- Reserved charging is operating
(turns OFF after 3 minutes)
- Charging is temporarily interrupted
(e.g. power failure)

H60
D DR
RI
IV
VI
IN
NG
G
E
EL
LE
EC
CT
TR
RI
IC
C
V
VE
EH
HI
IC
CL
LE
E
(
(C
CO
ON
NT
T.
.)
)
Aux. Battery Saver+
The Aux. Battery Saver+ is a function
that monitors the charging status of
the 12 V auxiliary battery.
If the auxiliary battery level is low, the
main high voltage battery charges
the auxiliary battery.
Information
The Aux. Battery Saver+ function will
be ON when the vehicle is delivered. If
the function is not needed, you may
turn it off in the Users Settings mode
on the cluster. For more information,
refer to the following page.
Mode
Cycle Mode :
When the POWER button is in the
OFF position with all doors, hood
and liftgate closed, the Aux. Battery
Saver+ activates according to the
auxiliary battery status.
Automatic Mode :
When the POWER button is in the
ON position with the charging con-
nector plugged in, the function acti-
vates according to the auxiliary bat-
tery status to prevent overdischarge
of the auxiliary battery.Information
• The Aux. Battery Saver+ activates
maximum of 60 minutes. If the Aux.
Battery Saver+ function activates
more than 10 times consecutively
when in the automatic mode, the
function will stop activating, judg-
ing that there is a problem with the
auxiliary battery. In this case, drive
the vehicle for some period of time
or if the auxiliary battery returns to
normal, the function will start acti-
vating.
• The Aux. Battery Saver+ function
cannot prevent battery discharge if
the auxiliary battery is damaged,
worn out, used as a power supply or
unauthorized electronic devises are
used.
• If the Aux. Battery Saver+ function
was activated, the high voltage bat-
tery level may have decreased.
i
i

H61
System Setting
The driver can activate the Aux.
Battery Saver+ function by placing
the POWER button to the ON posi-
tion and by selecting:
'User Settings →Other → Aux.
Battery Saver+'
The Aux. Battery Saver+ function
deactivates, when the driver cancels
the system setting.
Utility Mode
The high voltage battery is used
instead of the 12V auxiliary battery
for operating the convenient features
of the vehicle. When driving is not
necessary such as while camping or
when stopping the vehicle for a long
time, it is possible to use the electri-
cal devices (audio, lights, etc.) for
long hours.
OAEE049855N
When the function is activating
the third Charging Indicator
Lamp will blink and high voltage
electricity will be flowing in the
vehicle. Do not touch the high
voltage electric wire (orange),
connector, and all electric com-
ponents and devices. This may
cause electric shock and lead to
injuries. Also, do not modify
your vehicle in any way. This
may affect your vehicle per-
formance and lead to an acci-
dent.
WARNING
OAEEQ016025

H63
If an Accident Occurs
S SA
AF
FE
ET
TY
Y
P
PR
RE
EC
CA
AU
UT
TI
IO
ON
NS
S
F
FO
OR
R
E
EL
LE
EC
CT
TR
RI
IC
C
V
VE
EH
HI
IC
CL
LE
E
When a vehicle accident
occurs, move the vehicle to a
safe place, turn OFF the vehi-
cle and remove the auxiliary
battery (12 V) terminal to pre-
vent high voltage electricity
from flowing.
If electric wires are exposed
from inside or outside the
vehicle, do not touch the
wires.
Also, do not touch the high
voltage electric wire (orange),
connector, and all electric
components and devices. This
may cause electric shock and
lead to injuries.
WARNING When a vehicle accident
occurs and the high voltage
battery is damaged, harmful
gas and electrolytes may leak.
Be careful not to touch the
leaked liquid.
When you suspect leakage of
inflammable gas and other
harmful gases, open the win-
dows and evacuate to a safe
place. If any leaked fluid
comes in contact with your
eyes or skin, immediately
clean the affected area thor-
oughly with tap water or
saline solution and have doc-
tors inspect it as soon as pos-
sible.
WARNING
If a small scale fire occurs,
use a fire extinguisher (ABC,
BC) that is meant for electrical
fires. If it is impossible to
extinguish the fire in the early
stage, remain a safe distance
from the vehicle and immedi-
ately call 911. Also, advise
them that an electric vehicle is
involved.
If the fire spreads to the high
voltage battery, large amount
of water is needed to put out
the fire. Using small amount
of water or fire extinguishers
not meant for electrical fires
could cause serious injury or
death from electrical shocks.
WARNING