WHILL C2 User manual

WHILL Model C2/Ci2
en-US/CA
User Manual

1
WHILL Model C2/Ci2 User Manual
Introduction
Thank you for your purchase of the WHILL Model C2/Ci2. This device is intended to provide mobility to individuals
who are comfortable with operating a powered wheelchair.
This user manual is intended for users of this device and instructs how to safely operate the device. It also explains
the basic adjustments, inspections, troubleshooting, and the basic maintenance procedures to be performed by the
user. This manual can also be used by distributors, sales staff, and others in order to gain a detailed understanding
of the main functions. WHILL is dedicated to ensuring the safety, comfort, and convenience of the users. Please
read this manual carefully before use, and be sure to use the device correctly and safely. Store this manual in a
location where it can be referred to whenever needed.
• This manual contains information that is protected by patent rights and copyrights. It may not be reproduced in
part or in whole without explicit written permission from WHILL.
• The contents of this manual may be changed at any time without notice. For the latest information about the
device, visit the WHILL Website (https: //whill.inc).
• Use of this device in ways not defined in this manual may result in damage to the device. Please contact your
distributor or customer support if you notice any inaccuracies or omissions in this manual.
32-00022-3-01

2WHILL Model C2/Ci2 User Manual
Manual overview
The symbols used throughout this manual are described below. Be sure to observe the instructions indicated by
each symbol.
Symbol Description
警 告
WARNING Indicates critical instructions to prevent an imminently hazardous situation that may
result in death or serious injury.
警 告
CAUTION Indicates instructions to prevent a potentially hazardous situation that may result in
minor injury, property damage or both.
Indicates a required act.
Indicates a prohibited act.
Indicates precautions or reference information that must be read in order to prevent
device malfunctions or failures, and to ensure comfortable device use.

3
WHILL Model C2/Ci2 User Manual
Contents
Introduction............................................................................. 1
Manual overview ..................................................................... 2
1. Safety precautions ............................................................ 6
1.1. EMI (Electromagnetic Interference) ................................. 10
1.1.1. General Q&A on EMI and RFI............................................. 11
1.1.2. Important information regarding Electro Magnetic
Compatibility (EMC) ........................................................... 11
1.1.3. FCC and ISED information................................................. 14
1.2. Labels on the device ......................................................... 16
2. About the device.............................................................. 18
2.1. Packaged items ................................................................ 18
2.2. Names and functions of parts .......................................... 18
2.3. Accessories....................................................................... 21
3. Charging the battery....................................................... 22
3.1. Battery and charger components..................................... 24
3.2. Charging procedure .......................................................... 25
3.2.1. Charging with the battery installed in the device.............. 27
3.2.2. Charging with the battery removed................................... 29
3.2.3. Charger indicator displays................................................. 32
4. Operating procedures..................................................... 34
4.1. Inspection before getting in the device ............................ 35
4.2. Getting in the device ......................................................... 36
4.2.1. Accessing the seat from the front ..................................... 38
4.2.2. Accessing the seat from the side ..................................... 39
4.3. Fastening the lap belt* ..................................................... 41
4.3.1. Removing the lap belt........................................................ 41
4.4. Turning on the power........................................................ 42
4.4.1. Checking the battery charge level..................................... 43
4.4.2. Adjusting the speed ........................................................... 43
4.4.3. Using the sound button ..................................................... 43
4.5. Driving............................................................................... 44
4.5.1. Moving forward and backward .......................................... 47
4.5.2. Moving in a diagonal direction........................................... 47
4.5.3. Turning............................................................................... 48

4WHILL Model C2/Ci2 User Manual
4.5.4. Stopping ............................................................................. 48
4.5.5. Controlling the speed ........................................................ 49
4.5.6. Driving under different road conditions ............................ 50
4.6. Releasing the brakes ........................................................ 51
4.6.1. Release procedure............................................................. 51
4.7. Carrying items .................................................................. 52
4.8. Using the smart key* ........................................................ 54
4.8.1. Locking............................................................................... 54
4.8.2. Unlocking........................................................................... 55
5. Assembly, adjustment, and disassembly ....................... 56
5.1. Component list.................................................................. 56
5.2. Assembly procedures ....................................................... 58
5.2.1. Assembling the front drive base and rear drive base ...... 59
5.2.2. Installing the storage basket* ........................................... 60
5.2.3. Installing the seat assembly.............................................. 61
5.2.4. Installing the battery ......................................................... 64
5.3. Adjustment procedures .................................................... 65
5.3.1. Adjusting the arm length................................................... 66
5.3.2. Switching the position of the control pad.......................... 68
5.3.3. Adjusting the seat height................................................... 75
5.3.4. Adjusting the back support height .................................... 78
5.3.5. Adjusting the back support angle...................................... 80
5.4. Disassembly procedures .................................................. 83
5.4.1. Removing the battery......................................................... 84
5.4.2. Removing the seat assembly............................................. 85
5.4.3. Removing the storage basket ............................................ 87
5.4.4. Removing the front drive base........................................... 88
6. Storage and transport methods ..................................... 90
6.1. Storage.............................................................................. 90
6.2. Transport........................................................................... 91
6.2.1. How to hold each component ............................................ 92
7. About the smartphone app............................................. 94
8. Maintenance and inspection........................................... 96
8.1. User maintenance ............................................................ 96
8.2. Replacing the smart key battery.......................................97
8.3. Reinstalling the joystick.................................................... 99

5
WHILL Model C2/Ci2 User Manual
Contents
* Sold separately. Equipped with standard items depending on the area/countries.
8.4. Inspection........................................................................ 100
8.5. Repair, maintenance, and parts replacement performed
by the manufacturer or distributor................................. 100
8.6. Disposal .......................................................................... 100
8.7. About warranty information ........................................... 100
8.8. How to find manufacturing month and year of WHILL
Model C2/Ci2 device........................................................ 101
9. Troubleshooting ............................................................ 104
10. Specifications and test results ..................................... 106
10.1. Specifications.................................................................. 106
10.2. Dimensions and test results........................................... 108
Index.................................................................................... 110
Contact information............................................................ 112

6WHILL Model C2/Ci2 User Manual
1. Safety precautions
Complete attention to safety has been given in the design of the device. However, injury or damage is possible if the
device is used incorrectly or if precautions are ignored.
The descriptions related to safety utilize the terms “WARNING” and “CAUTION” to indicate the degree of injury or
damage and the level of danger. “WARNING” is critical instructions to prevent an imminently hazardous situation
that may result in death or serious injury. “CAUTION” is instructions to prevent a potentially hazardous situation
that may result in minor injury or property damage or both.
The WHILL Model C2/Ci2 is a mobility vehicle. Be sure to correctly understand the contents of this manual before
using the device. Persons who find it difficult to use a powered wheelchair should refrain from using the device. Pay
attention to the following precautions when using and handling the device.
The device is designed for use on ordinary paved roads or indoor use.
If this device is being operated by an assistant, the operator must carefully read this manual and fully
understand the precautions before using it.
1. For using the machine
WARNING
If the device shows any abnormal signs, immediately discontinue use, and contact the
distributor or customer support.
Using the device in a less than perfect state can potentially cause an injury or accident.
Before use, check for any improperly assembled, missing or broken components, and check
that the brakes are locked.
There is a risk of injury or accident. If components need to be replaced or repaired, stop using
the device immediately and contact your distributor.
Carefully read the explanations in this manual regarding the battery and charger, and follow
the instructions.
There is a risk of fire or battery explosion when disassembling the battery or charger. Do
not allow flames near the battery or charger, avoid getting the battery and charger wet or
subjecting them to impact (dropping, penetration with nails, or standing on them), etc.
Persons who have an implanted pacemaker, implanted defibrillator, or other
electrical medical devices on their bodies, must leave a minimum of 8 inches
(20 cm) between themselves and the magnetic connectors.
The magnetic connectors are located at the connection between the seat assembly and rear
drive base. The magnetism of the magnetic connectors may have an adverse effect on electrical
medical devices.
Turn off the device power when not operating.
There is a risk of accidental contact with the control pad that could cause unexpected
movement of the device.
The maximum load weight for this device is 300 lb (approx. 136 kg). It includes both the
occupant and any luggage. Use the device without subjecting it to a load higher than this limit.
There is a risk of damaging the device.

7
WHILL Model C2/Ci2 User Manual
1
1. Safety precautions
WARNING
Do not sit on the control pad, place the removed seat assembly upside down, or apply an
excessive load to the control pad. Do not press the control pad or switches with excessive
force or operate them with a sharp object.
There is a risk that the control pad or switches may be damaged, rendering the device
inoperable.
Do not jump onto the foot rest, stand on the foot rest while carrying a heavy object, or place an
excessive load on the foot rest.
There is a risk of the device lifting up and tipping.
Do not ride on the anti-tip bar.
The device may lose its anti-tipping functionality if the anti-tip bar is deformed. Contact your
distributor for replacement if it is deformed.
Do not apply stickers or paint onto the tail lights, switches, display, or labels.
There is a risk that these components may not be visible, resulting in incorrect operation and
accident.
Do not hoist the device when there is a person on the device.
There is a risk of falling or tipping over.
Do not use the device as a seat in an automobile or other vehicle.
There is a risk of damage to the device, causing an accident.
The symbol on the right indicates that the device is not intended to be used as a seat
in a motor vehicle.
CAUTION
If the device is not used for a long period, ensure the battery is fully charged before storing.
Charge the battery at least once a month.
There is a risk that the battery may get excessively depleted and cannot be charged.
Disassemble the device before lifting it. Hold the part specified in this manual and be careful
of the weight when lifting each component.
There is a risk of injury to the user and damage to the device.
Take note of the surface temperature of the device when using the device.
The surface temperatures of the device can increase/decrease extremely when exposed to
external sources of heat or cold.

8WHILL Model C2/Ci2 User Manual
1
2. When getting in the device and driving the device
WARNING
Turn off the device power when getting in and out of the device.
There is a risk of unexpected movement of the device caused by accidental contact with the
control pad.
When driving, fully check the surroundings and road conditions. Drive carefully at low speed
particularly when driving in locations crowded with people, close to walls or other locations
where there are obstacles nearby, and in narrow places or on uneven surfaces or slopes.
There is a risk accidents may occur. When driving on wet inclines, there is a risk that the device
may lose stability. Pay close attention when driving.
When driving at night or in places with poor visibility, check that the tail lights are visible to
other people before using the device.
There is a risk of accident.
When approaching curbs, steps, slopes, and similar obstacles, approach at a 90° angle and
drive over them carefully at low speed.
There is a risk of tipping over or deforming the drive base.
Lower the foot rest and keep your feet on the foot rest while driving.
There is a risk that your feet may become caught in moving components.
When stopping on a downhill slope, release the control pad early, and make sure that the
device stops with an ample amount of extra space around it.
The stopping distance is longer when on a downhill slope. There is a risk that you may be
unable to stop in the intended position, causing an accident.
Be sure to release the brakes only when on a flat surface and in emergencies after turning off
the power. After moving the device manually with the brakes released, raise the brake release
levers and lock the brakes.
There is a risk accidents may occur because the device will move freely when the brakes are
released.
Do not drive the device in the following areas.
The device may tip over and there is a risk accidents may occur.
• Escalators or stairs
• Steps that are more than 2 inches (50 mm) high
• Slopes with a gradient of 10° or more
• Soft surfaces such as sand or mud
• Snowy or frozen paths
Do not release the brakes and move the device manually except in emergencies.
There is a risk accidents may occur because the brakes do not work.
While riding the device, do not crouch down, lean out of the device, or exercise. Pay attention
to the center of mass while driving.
There is a risk the device stability and balance will be affected. Request help from those around
the device before reaching for inaccessible objects.
Do not drive while holding something in your hand or with something placed on your lap.
There is a risk of unintended movement of the device.

9
WHILL Model C2/Ci2 User Manual
1
1. Safety precautions
3. When assembling, adjusting, or disassembling
WARNING
Assemble the device in the described order in this user manual. Do not perform any
disassembly, adjustment, repair, or modification that is not listed in this manual.
There is a risk of injury and product safety risk due to damage to the device or its parts.
Performing repair or modification which is not listed in this manual will invalidate the warranty.
Perform assembly, adjustment, and disassembly on a flat and level surface with the battery
removed and brakes locked.
There is a risk of accident.
Do not touch the connectors directly, allow them to become wet, or bring any metal or other
foreign objects close to them. Ensure that there are no foreign objects when assembling.
There is a risk of injury or electric shock as well as damage to the device or its components.
Connector
Do not press a sharp object against or apply a load to the cables.
The damaged cable may cause malfunctions or unexpected device operation.
Cables

10 WHILL Model C2/Ci2 User Manual
1
1.1. EMI (Electromagnetic Interference)
There is a risk of unintended movement of this device as a result of radio waves. Avoid driving in an area where
strong electromagnetic waves are generated such as areas around high-tension wires, television towers, etc. Radio
waves may interfere with the control functions of this device.
The device may also emit its own electromagnetic fields and may disturb the operation of other nearby devices.
To reduce the chance of unintended device movement, which could result in serious injury, pay careful attention to
the following instructions.
• Do not operate hand-held transceivers (transmitters receivers), such as citizens band (CB) radios, or turn
on personal communication devices, such as cellular phones, while the device is turned on;
• Look for nearby transmitters, such as radio or TV stations, and try to avoid coming close to them;
• Be aware that adding accessories or components, or modifying the device, may make it more susceptible to
EMI.
If the device moves or stops when the device controller is not operated, or if the device operates in a way different
than intended, take the following actions.
• Turn off the device as soon as it is safe.
• Record the controller operation that was being performed at that time.
• Record the device operation that could not be activated using the controller.
• Record the mobile phones and other electronic devices that may be sources of radio waves and were near
the device.
Based on these notes, consider the possible cause of radio frequency interference and remove it. If the problem is
still not resolved, consult with your distributor or customer support. At this time, keep your earlier notes at hand.
If radio frequency interference is suspected, turn off the power and disconnect the battery.

11
WHILL Model C2/Ci2 User Manual
1
1. Safety precautions
1.1.1. General Q&A on EMI and RFI
The following are general questions and answers regarding steps to avoid nearly all of the effects of EMI and RFI
with this device. Please use them as reference.
Where do radio waves come from?
Radio waves are emitted by unidirectional or bidirectional radio devices. Such devices include transceivers,
mobile phones, wireless computer links, microwave generators, and radio call transmitters. Radio waves are a
form of electromagnetic energy, and the strength of the energy increases at closer distances to the transmitting
antenna. This electromagnetic field can cause problems for users of electric equipment.
What kind of movements should I expect if a mobility device is affected by EMI or RFI?
EMI and RFI undergo extremely large dynamic changes and may affect a device depending on conditions such as
the following.
• Radio wave frequency and strength
• Structure of the power supply equipment
• Inclination of the device (whether the ground is flat or a slanted)
• Whether the device is turned on and whether it is moving
If this device is affected, there is a possibility of abnormal movement. It may begin moving uncontrollably or stop
suddenly. Strong EMI or RFI can damage the control system.
1.1.2. Important information regarding Electro Magnetic Compatibility (EMC)
Below cables information are provided for EMC reference.
Cable Max. cable length,
Shielded/unshielded
Number Cable classification
AC Power Line 1.5 m Unshielded 1 Set AC Power
DC Power Line 1.2 m Unshielded 1 Set DC Power
This electrical medical equipment needs special precautions regarding EMC and put into service according to the
EMC information provided in the user manual; The equipment conforms to this IEC 60601-1-2:2014 standard for
both immunity and emissions. Nevertheless, special precautions need to be observed:
• The equipment with no ESSENTIAL PERFORMANCE is intended used in Home healthcare environment.
• WARNING: Use of this equipment adjacent to or stacked with other equipment should be avoided because it
could result in improper operation. If such use is necessary, this equipment and the other equipment should be
observed to verify that they are operating normally.
• The use of accessories, transducers and cables other than those specified or provided by the manufacturer of
this equipment could result in increased electromagnetic emissions or decreased electromagnetic immunity of
this equipment and result in improper operation.

12 WHILL Model C2/Ci2 User Manual
1
• WARNING: Portable RF communications equipment (including peripherals such as antenna cables and external
antennas) should be used no closer than 30 cm (12 inches) to any part of the C2, including cables specified by the
manufacturer. Otherwise, degradation of the performance of this equipment could result.
• WARNING: If the use location is near (e.g. less than 1.5 km from) AM, FM or TV broadcast antennas, before using
this equipment, it should be observed to verify that it is operating normally to assure that the equipment remains
safe with regard to electromagnetic disturbances throughout the expected service life.
• When the AC input voltage is interrupted, the equipment will stop battery charging and if the power supply
restored, it could be recovered automatically, this degradation could be accepted because it will not lead to
unacceptable risks and it will not result in the loss of basic safety or essential performance.
During all immunity tests, a digital tachometer was used to monitor the rotating speed of wheel and a clamp meter
was used to monitor the output current of battery charger to verify the performance of EUT.
EMI Compliance Table (Table 1)
Table 1 - Emission
Phenomenon Compliance Electromagnetic environment
RF emissions CISPR 11
Group 1, Class B
Home healthcare environment
Harmonic distortion IEC 61000-3-2
Class A
Home healthcare environment
Voltage fluctuations and
flicker
IEC 61000-3-3
Compliance
Home healthcare environment
EMS Compliance Table (Table 2-5)
Table 2 - Enclosure Port
Phenomenon Basic EMC standard Immunity test levels
Home healthcare environment
Electrostatic
Discharge
IEC 61000-4-2 ±8 kV contact
±2 kV, ±4 kV, ±8 kV, ±15 kV air
Radiated RF EM field IEC 61000-4-3 20 V/m
26 MHz-2.5 GHz
80% AM at 1 kHz
10 V/m
80 MHz-2.7 GHz
80% AM at 1 kHz
Proximity fields from RF
wireless communications
equipment
IEC 61000-4-3 Refer to table 3
Rated power frequency
magnetic fields
IEC 61000-4-8 30 A/m
50 Hz or 60 Hz

13
WHILL Model C2/Ci2 User Manual
1
1. Safety precautions
Table 3 - Proximity fields from RF wireless communications equipment
Test frequency
(MHz)
Band
(MHz)
Immunity test levels
Home healthcare environment
385 380-390 Pulse modulation 18 Hz, 27 V/m
450 430-470 FM, ±5 kHz deviation, 1 kHz sine, 28 V/m
710 704-787 Pulse modulation 217 Hz, 9 V/m
745
780
810 800-960 Pulse modulation 18 Hz, 28 V/m
870
930
1720 1700-1990 Pulse modulation 217 Hz, 28 V/m
1845
1970
2450 2400-2570 Pulse modulation 217 Hz, 28 V/m
5240 5100-5800 Pulse modulation 217 Hz, 9 V/m
5500
5785
Table 4 - Input a.c. power Port
Phenomenon Basic EMC standard Immunity test levels
Home healthcare environment
Electrical fast transients/
burst
IEC 61000-4-4 ±1 kV
±2 kV
100 kHz repetition frequency
Surges
Line-to-line
IEC 61000-4-5 ±0.5 kV, ±1 kV
Conducted disturbances
induced by RF fields
IEC 61000-4-6 3 V, 0.15 MHz-80 MHz
6 V in ISM bands and amateur radio bands
between 0.15 MHz and 80 MHz
80% AM at 1 kHz
Voltage dips IEC 61000-4-11 0% UT; 0.5 cycle
At 0º, 45º, 90º, 135º, 180º, 225º, 270º and 315º
0% UT; 1 cycle
and
70% UT; 25/30 cycles
Single phase: at 0º
Voltage interruptions IEC 61000-4-11 0% UT; 250/300 cycles

14 WHILL Model C2/Ci2 User Manual
1
Table 5 - Signal input/output parts Port
Phenomenon Basic EMC standard Immunity test levels
Home healthcare environment
Conducted disturbances
induced by RF fields
IEC 61000-4-6 3 V, 0.15 MHz-80 MHz
6 V in ISM bands and amateur radio bands
between 0.15 MHz and 80 MHz
80% AM at 1 kHz
1.1.3. FCC and ISED information
The control pad on the WHILL Model C2/Ci2 contains the following wireless communication modules that are
regulated by the FCC (Federal Communications Commission) and the ISED (Innovation, Science and Economic
Development Canada).
• Model No: MDBT42Q-P192K
FCC ID: SH6MDBT42Q
IC: 8017A-MDBT42Q
The control pad is labelled with an FCC ID and an ISED certification number. The label is accessible without the use
of tool by removing the control pad as shown in Section “Switching the position of the control pad”.
FCC Information
This device complies with part 15 subpart B and C of the FCC rules. Operation is subject to the following two
conditions.
(1) This device may not cause harmful interference.
(2) This device must accept any interference received, including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part
15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the equipment off and on,
the user is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
CAUTION: Changes or modifications not expressly approved by the manufacturer could void the user’s authority to
operate this equipment.
This device meets the government’s requirements for exposure to radio waves. This device is designed and
manufactured not to exceed the emission limits for exposure to radio frequency (RF) energy set by the Federal
Communications Commission of the U.S. Government.

15
WHILL Model C2/Ci2 User Manual
1
1. Safety precautions
RF Exposure Warning
This equipment must be installed and operated in accordance with provided instructions and the antenna(s) used
for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must
not be co-located or operating in conjunction with any other antenna or transmitter. End-users and installers must
be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure
compliance.
ISED Information
This Class B device complies with Canadian ICES-3 (B). This device contains licence-exempt transmitters/
receivers that comply with Innovation, Science and Economic Development Canada’s license-exempt RSS(s).
Operation is subject to the following two conditions: (1) This device may not cause interference. (2) This device
must accept any interference, including interference that may cause undesired operation of the device.
Cet appareil numérique de la classe B est conforme à la norme NMB-3 (B) du Canada. L’émetteur/récepteur
exempt de licence contenu dans le présent appareil est conforme aux CNR d’Innovation, Sciences et
Développement économique Canada applicables aux appareils radio exempts de licence. L’exploitation est
autorisée aux deux conditions suivantes : (1) L’appareil ne doit pas produire de brouillage; (2) L’appareil doit
accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre le
fonctionnement.
Radio Frequency (RF) Exposure Information
The radiated output power of the Wireless Device is below the ISED radio frequency exposure limits. The Wireless
Device should be used in such a manner such that the potential for human contact during normal operation is
minimized.
This device has been evaluated for and shown compliant with the ISED Canada RF Exposure limits under mobile
exposure conditions (antennas are greater than 20 cm from a person’s body).
Informations concernant l’exposition aux fréquences radio (RF)
La puissance de sortie émise par l’appareil sans fil est inférieure à la limite d’exposition aux fréquences radio d’ISDE
Canada. Utilisez l’appareil sans fil de façon à minimiser les contacts humains lors du fonctionnement normal.
Ce dispositif a été évalué et démontré conforme aux limites d’exposition aux RF d’ISDE Canada dans des conditions
d’exposition à des appareils mobiles (antennes sont supérieures à 20 cm à partir du corps d’une personne).

16 WHILL Model C2/Ci2 User Manual
1
1.2. Labels on the device
Warning labels are attached on the area where there are possible hazards. Also, labels indicate the important
information for using the device such as the device information, lock and unlock positions of levers, etc.
There may be additional labels not described in this manual depending on the sales area or model.
CAUTION
Do not remove the labels.
The labels contain important information.

17
WHILL Model C2/Ci2 User Manual
1
1. Safety precautions

18 WHILL Model C2/Ci2 User Manual
2. About the device
2.1. Packaged items
The packaged device contains the following items. Before using the device, be sure to check that there are no
missing items or damaged parts on the device. If any item is missing or if the device is damaged, contact the
distributor or customer support.
WHILL Model C2/Ci2 Smart key (if purchased)
Charger Storage basket (if purchased)
Lap belt (Sold separately. Equipped with
standard items depending on the area/countries.)
User manual (this manual)
Battery Pocket reference [Provided in paper depending on
the area/countries]
Be careful not to scratch the exterior of the device when opening the packages.
2.2. Names and functions of parts
¢Device
A
I
J
K
L
N
O
P
C
D
E
F
G
H
B
M
* The illustration is of a model with the control pad on the right side.

19
WHILL Model C2/Ci2 User Manual
2
2. About the device
A
Back support
B
Arm rest
C
Control pad
3
4
2
5
6
1
Speed select button “–”
Decreases the maximum speed.
Power button
Turns on/off the device.
Sound button
Turns on/off the sound.
Joystick
Controls the forward, backward, left, and right
movements. The degree of joystick inclination
can also control acceleration and deceleration.
Speed select button “+”
Increases the maximum speed.
Display
D
Speaker
E
Seat release lever
Used to separate the seat assembly from the rear
drive base.
F
Storage basket (Sold separately. Equipped with
standard items depending on the area/countries.)
Used to carry storage items.
It is installed onto the front drive base.
G
Foot rest
Supports the user’s feet when the user is seated in
the device.
H
Front wheel (Omni-wheel)
I
Arm
The diagonal part located on the left and right sides
of the device.
The control pad can be installed on the end of the
left or right arm.
J
Accessory bar
Use to attach accessories.
K
Brake release lever
Used to lock/unlock the brakes for the rear wheels.
This lever is located under the seat assembly.
There are two levers in total.
L
Base release handle
This is the connection part of the rear drive base
and the front drive base.
Base release handle
M
Tail light (Sold separately. Equipped with
standard items depending on the area/countries.)
The red LED light located on the rear sides of the
arms.
N
Battery
For details, refer to “3.1. Battery and charger
components” on page 24.
O
Anti-tip bar
Prevents the device from tipping over backwards.
P
Rear wheel
¢Charger
Used to charge the battery.
For details, refer to “3.1. Battery and charger
components” on page 24.