
Characteristics
l The 
capacity  of  the  lithium-ion  battery  used
as traction battery on your i-MiEV, like other
commonly used lithium ion batteries, will de-
crease  according  to  time  and  usage.  This
type  of  decrease  in  battery  capacity  is  nor-
mal, and is not indicative of any defect or fail-
ure  in  your  traction  battery.  As  the  traction
battery  capacity  decreases,  the  initial  cruis-
ing  range  of  the  vehicle  will  similarly  de-
crease.
l MITSUBISHI  MOTORS  estimates  that  after
5  years,  the  capacity  of  the  traction  battery
provided  with  your  vehicle  will  be  approxi-
mately 80% of the original capacity. After 10
years,  the  capacity  should  be  approximately
70%  of  the  original  capacity.  These  are  only
estimates, and the actual capacity of your ve-
hicle battery over time will depend on a vari-
ety  of  factors  including  how  your  vehicle  is
used, stored and charged. Factors that can ad-
versely  affect  battery  capacity  over  time  in-
clude  frequent  driving,  using  aggressive  ac-
celeration/deceleration, repeated frequent use
of the quick charger, and operation/storage in
extreme hot temperature environments.
l The  performance  may  be  changed  due  to  the
outside  temperature.  At  low  temperature,  in
particular,  the  cruising  range  is  short  and  the
charging time is long, compared to operation
at normal temperature.
l The  battery  discharges  over  time  and  the  en-
ergy level slowly decreases even while not in
use.
l It is not necessary to consume the battery com-
pletely before charging. Precautions for operation
l Do 
not store your vehicle with the energy lev-
el gauge showing 0 bars.
Doing  so  could  damage  the  traction  battery.
The battery may have to be replaced depend-
ing on the low capacity.
l If  you  do  not  use  your  vehicle  for  a  long
time, please charge the traction battery to the
full  every  3  months  so  that  the  energy  level
gauge may not be 0 bars.
l MITSUBISHI MOTORS collects traction bat-
teries.  If  you  scrap  your  vehicle,  please  con-
sult  a  MITSUBISHI  MOTORS  Authorized
Service Point.
NOTE l The  progress  of  the  battery  capacity  loss  de-
pends  on  the  vehicle  usage  and  the  environ-
ment.
We  recommend  to  do  regular  charging  from
2  bars  or  less  to  charge  completely  at  least
once in 3 months.
The procedure lets the battery remaining indi-
cator adjusted automatically. High-Voltage components
E00203300010
High 
voltage components and wiring cables are lo-
cated as shown in the figure below. For detailed in-
formation,  refer  to  “Service  precautions”  on  page
8-06. 1- Regular charge port
2-
Inverter
3- Traction battery
4- Heater
5- Air conditioner compressor
6- High voltage connector
7- Service plug
8- Electric motor (Electric motor unit)
9- On board charger/DC-DC converter
10- Quick charge port
Cruising range E00202900019
l Even 
 if the charge level is the same, the cruis-
ing range may vary depending on the driving
conditions.  Since  driving  at  high  speed  or
climbing  on  a  hill  requires  higher  consump-
tion  of  the  traction  battery  than  usual,  the
cruising range is shortened. General information
03 
OHAE13E1  

Cautions and actions to deal with intense heat
E00203000046
l When 
the vehicle is driven in a high ambient temperature, its air-conditioner performance can be insufficient. Also, using the air conditioner can reduce the
vehicle’s cruising range.
l When the ambient temperature is approximately 40 °C or higher, the phenomena described below may occur. Please take the described action.
l Even if the ambient temperature is approximately 40 °C or lower, the phenomena described below may occur. Please take the described actions. Approx. ambient tem-
perature Phenomena Corrective action
Approx. 40 °C or high-
er Startup and driving l
During 
 quick charging, repeated high-speed driving, or repeated
uphill  driving,  the  power  down  warning  lamp*  comes  on  and
the motor output is restricted to protect the traction battery or mo-
tor (electric motor unit).
l Regenerative braking performance may decrease. l
Stop 
 the  vehicle  for  a  while,
avoid  quick  charging,  and  wait
for  the  power  down  warning
lamp* to go off.
l
If 
 you  continue  driving  after  the  power  down  warning  lamp*
has come on, the vehicle may stop when you have driven a few
kilometres.
Charging and battery lDuring quick charging, charging times get longer. Approx. 45 °C or high-
er Startup and driving l
During 
 quick charging, repeated high-speed driving, or repeated
uphill  driving,  the  power  down  warning  lamp*  comes  on  and
the motor output is restricted to protect the traction battery or mo-
tor (electric motor unit).
l Regenerative braking performance may decrease. l
Stop 
 the  vehicle  for  a  while,
avoid  quick  charging,  and  wait
for  the  power  down  warning
lamp* to go off.
l If 
 you  continue  driving  after  the  power  down  warning  lamp*
has come on, the vehicle may stop when you have driven a few
kilometres.
Charging and battery l
The EV charging cable (regular charging cable) cannot be used.
l During quick charging, charging times get longer.
lPark 
 in  a  well-ventilated,  shady
place.
l The 
 traction  battery  capacity  decreases  more  quickly,  and  the
cruising range decreases more quickly. General information
06
OHAE13E1  

Battery
E08300100027
There 
are two types of batteries installed in your ve-
hicle: a traction battery for operating the motor (elec-
tric  motor  unit)  and  air  conditioning  as  well  as  an
auxiliary battery for starting the electric motor unit
and  operating  the  lamps,  wipers,  etc.  This  chapter
explains charging of the traction battery.
NOTE
l The  auxiliary  battery  is  automatically  charg-
ed while the ready indicator is illuminated or
during charge for the traction battery.
Refer to “Ready indicator” on page 4-09.
l If the auxiliary battery is flat, the electric mo-
tor  unit  cannot  be  started.  Also,  the  charging
cannot be started.
Refer to “Emergency starting” on page 7-02. Basic knowledge for charging
E08300200031
There 
are  two  types  of  charging:  regular  charging
and quick charging.
Regular  charging  is  performed  through  the  on-
board  charger  using  rated  AC  220-240  V  outlet  as
the power source.
The  rated  AC  voltage  may  differ  from  country  to
country.
Quick  charging  is  performed  with  the  quick  charg-
er compatible with i-MiEV. WARNING
l To 
 reduce  the  risk  of  electric  shock  or
fire due to electric leak, always use an out-
let  protected  by  a  residual  current  detec-
tor, rated for amperage equal to or great-
er  than  the  value  specified  by
MITSUBISHI MOTORS, and that is con-
nected  to  a  dedicated  branch  circuit.  If
the  circuit  is  shared,  and  another  electri-
cal  device  is  being  used  at  the  same  time
the  vehicle  is  charging,  the  breaker  may
trip and the circuit may cause adverse in-
terference  on  MCB  (Moulded  Circuit
Board)  and  household  electrical  applian-
ces such as TVs and audio systems.
l It  is  possible  to  charge  even  in  rain  or
snow.  However,  be  sure  to  pay  attention
to the following:
• Never  connect  or  disconnect  thecharge  connector  with  a  wet  hand  to
prevent an electric shock.
• Never  make  the  connection  wet  when charging.
Never  charge  in  bad  weather  such  as
heavy rain, strong wind and with the risk WARNING
of  lightning.  Also,  do  not  keep  opening
the 
 inner  lid  and  the  charging  lid  or  do
not  leave  the  EV  charging  cable  in  out-
door  areas.  Doing  so  could  lead  to  water
entering  the  charge  connector  or  the
charge  port,  resulting  in  fire  or  an  elec-
tric shock.
l If the connected part of the charging plug
has  been  buried  in  snow  while  charging,
turn  off  the  hand  switch  or  the  breaker
connected  with  the  outlet  first,  then  re-
move  the  snow  and  disconnect  the  charg-
ing  plug.  If  your  vehicle  body  has  been
buried  in  snow  while  charging,  remove
the  snow  and  then  disconnect  the  charge
connector. CAUTION
l
Do 
 not  attempt  to  perform  a  jump  start
on  the  auxiliary  battery  at  the  same  time
that the traction battery is being charged.
Doing so may damage the vehicle or charg-
ing cable and could cause injury. Refer to
“Emergency starting” on page 7-02.
NOTE l Repeatedly 
performing  only  quick  charging
may  reduce  the  battery  capacity.  In  usual
charge, regular charging is recommended.
l To  maintain  the  capacity  of  the  traction  bat-
tery, the following is recommended:
• Fully charge the vehicle in regular charg-ing every two weeks. Charging
1-04
1   
OHAE13E1  

• Do not  repeat  charging  near  the  full
charge level.
l The  quick  charging  gives  priority  when  the
regular  charging  and  the  quick  charging  are
performed at the same time.
At this time, the regular charging will be stop-
ped.
l The  progress  of  the  battery  capacity  loss  de-
pends  on  the  vehicle  usage  and  the  environ-
ment.
We  recommend  to  do  regular  charging  from
2  segments  or  less  to  charge  completely  at
least once in 3 months.
The procedure lets the battery remaining indi-
cator adjusted automatically.
l In  the  event  of  an  electrical  power  outage
while charging, charging restarts automatical-
ly with the restoration of electricity.
EV charging cable* E08301100066
Your vehicle is equipped with the EV charging ca-
ble (A) with control box (B).
Indicator (LED)
(Green)
(Orange) (Red)
READY
CHARGE
FAULT The  indicator  illuminates/blinks  in  the  following
conditions.
: Illuminates  : Blinking  : Not illuminates Charging
1-05 1   
OHAE13E1  

Symptom Possible cause Possible solution
Regular charging is dis-
continued. There is no power coming from the out-
let. There may have been a electrical power failure, or the breaker may have failed.Charging will
resume when the power source is reset.
The EV charging cable has been discon-
nected. Check that the EV charging cable has not been disconnected.
The button on the regular charge con-
nector has been pressed. If the charge connector button is pressed for a long period of time, charging will be stopped.
Start the charging procedure again.
The temperature of the traction battery
is too hot or too cold to charge. Confirm the traction battery temperature.
Refer to “Cautions and actions to deal with intense heat” on page 
06 and “Cautions and ac-
tions to deal with intense cold” on page 08.
Charging is stopped by the regular
charge timer. Charging will stop depending on the timer function setting of the regular charge device. If
you need to charge the traction battery more, start the charging procedure again.
Quick charging cannot be
started. The charge connector is not connected
correctly and/or not locked. Check that the charge connector is connected correctly and that it is locked.
The self-diagnostic function of the
quick charge device returns a negative
result. There is a possibility that the vehicle has a malfunction. Stop charging and contact a
MITSUBISHI MOTORS
 Authorized Service Point.
The power switch of the quick charger
is off. Check the power switch of the quick charger.
Quick charge is discontin-
ued. Charging is stopped by the quick
charge timer. Charging will stop depending on the timer function setting of the quick charge device.If you
need to charge the traction battery more, start the charging procedure again.
Charging stops at 80% capacity. Charging is designed to stop when the traction battery capacity reaches 80%. If you need to charge the traction battery more than 
80%, start the charging procedure again.
The power supply for the quick charg-
er is off. Check whether the power supply for the quick charger is off. Charging
1-17 1
OHAE13E1  

Checking auxiliary battery electrolyte
level
E08402500013Before checking the auxiliary battery electrolyte lev-
el, remove the auxiliary battery’s upper cover.
The 
electrolyte level must be between the specified
limit on the outside of the auxiliary battery. Replen-
ish with distilled water as necessary.
The  inside  of  the  auxiliary  battery  is  divided  into
several  compartments;  remove  the  cap  from  each
compartment and fill to the upper mark. Do not top
up  beyond  the  upper  mark  because  spillage  during
driving could cause damage.
Check  the  electrolyte  level  at  least  once  every  4
weeks, depending on the operating conditions.
If the auxiliary battery is not used, it will discharge
by itself with time.
Check  it  once  every  four  weeks  and  charge  with
low current if necessary. During cold weather
E08402600014
The 
capacity  of  the  auxiliary  battery  is  reduced  at
low  temperatures.  This  is  an  inevitable  result  of  its
chemical  and  physical  properties.  This  is  why  a
very  cold  auxiliary  battery,  particularly  one  that  is
not fully charged will only deliver a fraction of the
starting current which is normally available.
We  recommend  you  to  have  the  auxiliary  battery
checked before the start of cold weather and, if nec-
essary, have it charged or replaced.
This  does  not  only  ensure  reliable  starting,  but  an
auxiliary  battery  which  is  kept  fully  charged  also
has a longer life.
Disconnection and connection E08402700015
To  disconnect  the  auxiliary  battery  cable,  stop  the
electric 
motor unit, first disconnect the negative (-)
terminal  and  then  the  positive  (+)  terminal.  When
connecting  the  auxiliary  battery,  first  connect  the
positive (+) terminal and then the negative (-) termi-
nal.
NOTE
l Open  the  terminal  cover  (A)  before  discon-
necting  or  connecting  the  positive  (+)  termi-
nal of the auxiliary battery.
l Loosen  the  nut  (B),  and  then  disconnect  the
auxiliary  battery  cable  from  the  positive  (+)
terminal. WARNING
l Keep  sparks,  cigarettes,  and  flames  away
from  the  auxiliary  battery  because  the
auxiliary battery could explode.
l When  installing  the  auxiliary  battery,
start  connection  with  the  positive  (+)  ter-
minal.  If  connection  is  started  from  the
negative  (-)  terminal,  sparks  will  occur  if
the  positive  (+)  terminal  touches  any  oth-
er parts, and this may cause the auxiliary
battery to explode.
l The  auxiliary  battery  electrolyte  is  ex-
tremely  caustic.  Do  not  allow  it  to  come
in  contact  with  your  eyes,  skin,  clothing,
or  the  painted  surfaces  of  the  vehicle.
Spilt  electrolyte  should  be  flushed  imme-
diately with ample amounts of water.
Irritation  to  eyes  or  skin  from  contact
with electrolyte requires immediate medi-
cal attention.
l Ventilate when charging or using the aux-
iliary battery in an enclosed space. Vehicle care and Maintenance
8-13 8   
OHAE13E1  

Bonnet room
In 
the  bonnet  room,  the  fuse  block  is  located  as
shown  in  the  illustration.  Press  the  tab  (A)  and  re-
move the cover. Fuse load capacity
E08404100013
The  fuse  capacity  and  the  names  of  electrical  sys-
tems 
protected  by  the  fuses  are  indicated  on  the
fuse block cover. Passenger compartment fuse location table
E08404200014 No. Sym-
bol Electrical system Capaci-
ties
1 Tail lamp (left)
7.5 A
2 Cigarette lighter/Ac-
cessory socket
15 A
3 — ——
4 Starter
7.5 A
5 Audio system amp
20 A
6 — ——
7 Tail lamp (right)
7.5 A
8 Outside rear-view mir-
rors
7.5 A
9 Control unit (Electric
motor unit)
7.5 A
* : Fusible link No. Sym-
bol Electrical system Capaci-
ties
10 Control unit
7.5 A
11 Rear fog lamp
10 A
12 Central door lock
15 A
13 Room lamp
10 A
14 Rear window wiper
15 A
15 Gauge
7.5 A
16 Relay
7.5 A
17 Heated seat
20 A
18 Option
10 A
19 Heated door mirror
7.5 A
20 Windscreen wiper
20 A
21 Reversing lamps
7.5 A
22 Demister
30 A
23 Heater
30 A
24 Auxiliary battery
30 A*
25 Radio
10 A
26 Electronic controlled
unit
15 A
* : Fusible link l
Some 
 fuses  may  not  be  installed  on  your  ve-
hicle, depending on the vehicle model or spec-
ifications. Vehicle care and Maintenance
8-21 8                          
OHAE13E1  

l
The  table  above  shows  the  main  equipment
corresponding to each fuse.
Bonnet room fuse location table E08404300015No. Sym-
bol Electrical system Capaci-
ty
1 — ——
2 Auxiliary battery
30 A*
3 Electric motor switch
40 A*
4 Radiator fan motor
40 A*
5 Electric window con-
trol 40 A
*
6 Brake electric vacuum
pump 30 A
*
7 Electric motor unit con-
trol 15 A
8 Stop lamps 15 A
* : Fusible link No. Sym-
bol Electrical system Capaci-
ty
9 Front fog lamps 15 A
10 Water pump (Electric
motor unit) 15 A
11 Charge 10 A
12 Hazard warning flasher 10 A
13 Horn 10 A
14 Daytime running lamps 10 A
15 Traction battery cool-
ing fan motor 15 A
16 Water pump (Air con-
ditioning) 10 A
17 Headlamp low beam
(right) 20 A
18 Headlamp low beam
(left) 20 A
19 Headlamp high-beam
(right) 10 A
20 Headlamp high-beam
(left) 10 A
* : Fusible link l
Some 
 fuses  may  not  be  installed  on  your  ve-
hicle, depending on the vehicle model or spec-
ifications.
l The  table  above  shows  the  main  equipment
corresponding to each fuse. Identification of fuse
E08404400016 Capacity Colour
7.5 A Brown
10 A Red
15 A Blue
20 A Yellow
30 A Green (fuse type) / Pink (fusible
link type)
40 A Green (fusible link type) Fuse replacement
E08404500017
1. Before 
replacing  a  fuse,  always  turn  off  the
electrical circuit concerned and turn the elec-
tric motor switch to the “LOCK” position.
2. Remove  the  fuse  puller  (A)  from  the  inside of  the  fuse  cover  in  the  passenger  compart-
ment. 3. Referring 
to  the  fuse  load  capacity  table,
check the fuse pertaining to the problem. Vehicle care and Maintenance
8-22
8                     
OHAE13E1