KHS Extended 2.0 User manual

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BATTERY PACK REMOVAL INSTRUCTIONS
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To remove the battery pack, we recommend that you stand on the left side to the frame.
(Standing on the left side of the bike gives you more leverage)
Turn the battery key counter-clockwise.
Hold the battery pack with your right hand, and prepare your left hand to catch the battery pack.
Push the battery out to the left.
The battery pack is removed.

To install the battery pack, we recommend that you should stand on the left side to the bike.
Hold the battery pack with both hands, line up the connector socket on the bottom, and push the
battery pack to the right bracket completely.
Turn the battery key clock-wise to lock the battery. Remove the key and store it properly.
BATTERY PACK INSTALLATION INSTRUCTIONS

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Charging
Please confirm that the battery and the charger are both rated 48V.
Plug the charge output 2 into the battery charge input 3 .
Charger connect to AC power source. 1 Household 110V ~ 220V socket
4 is USB port.
CHARGING THE BATTERY & CAPACITY DISPLAY

Charger LED indicator
If after 8 hours of charging and the LED indicator is still
Red, the charging seems abnormal.
Please stop the charging and report to supplier for service.
* We recommend fully charging the battery after every ride.
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4 Green LED represent fully charged
1 Red LED represents charge needed
LED indicator 8 Red light indicates charging.
Green light indicates fully charged.
(a) Push the button 5 to activate Capacity Meter
(b) Capacity Meter 6 LED Lamp indicator
CHARGING THE BATTERY & CAPACITY DISPLAY

Turning the Battery OFF
POWER BUTTON
This battery is equipped with a power button.
Turning the Battery ON
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The battery will automatically shut OFF after 60 minutes of being idle. However, to ensure longer
battery life, you may turn OFF the battery manually by pressing the power button again.
Simply press the power button to turn the battery ON.
The battery must be on in order for the bicycle
electrical control system (LCD dashboard, page 8) to
operate.

(d) Battery performance deteriorates over time whether the battery is used or not. This is known as
"calendar fade". Performance also deteriorates with usage and this is known as "cycle fade".
Follow these instructions to help extend the battery life and performance.
BATTERY STORAGE
Model Battery Charger
Easy 24 36V 36(42)V
Envoy 200 48V 48(54)V
Extended 2.0 48V 48(54)V
Model / Battery /Charger Chart
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(a) It is strictly forbidden to charge the battery with an uncertified charger.
(b) Avoid direct sunlight. Charge in dry and weld ventilated environment.
•If the bike is ridden on and/or after a rainy day, remove the battery and wipe it dry.
•When not using the battery for a long period of time or after charge, unplug the battery from the bike.
•Check the battery energy status and charge every three months.
CAUTION when charging:

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LCD OPERATION
On
Off
Push for 1 second
Push for 2 seconds
LCD dashboard content description
Power output and battery level indicators section 8
(1) POWER output indicator:
Each cell means 2A (current) of output
(2) BATTERY level indicator:
L CD OPERATION:
On & Off
When the battery is empty, all six cells are blank and red light will flash. Motor will stop
and show ERROR code ( 1 ). *Please charge, or install a charged battery, ASAP

LCD OPERATION
Power Assistance Level Indicator Section
Push to increase power assistance level (0.1.2.3.4.5)
Push to decrease power assistance level (5.4.3.2.1.0)
Push and simultaneously for 2 seconds to change the speed unit
between Miles Per Hour (MPH) and Kilometers Per Hour (KM/H).
Speed Indicator Selection : MPH vs.KM/H
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LCD OPERATION
Additional Information Section
Push button briefly each time will cycle through
the following functions：
* NOTE 1: Distance and speed units will depend on the selected MPH or KM/H unit in the
Speed Indicator section.
* NOTE 2: To clear all info except for odometer, push and together for 2 seconds.
* NOTE 3: To clear all info including odometer, push and together for 10 seconds.
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Screen cycles through the information modes automatically
Odometer recorded by the system since the manual reset
Time since the system was turned on
Distance traveled since system was turned on
Max Speed since system was turned on

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LCD OPERATION
Throttle
Push the throttle lever. The bike can start without pedaling.
Walking Mode
Press
On: Press and hold
Off: Press and hold
3.8MPH (6Km/H)
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on control panel for 1.5 seconds to turn on.
on control panel for 1.5 seconds to turn off.
on control panel button for 2 seconds to start the walking mode.
Button must be held to continue walking mode. Releasing the button will
immediately stop the walking mode.
Walking mode will allow the motor to run up to 3.8MPH (6KM/H)
It is designed to assist when pushing the bike uphill or need to go slowly.
When engaged, the power assistance indicator will show AUTO 6.
LCD Backlight and Front & Rear Lights
NOTE: Bicycle battery must be "ON" for the bicycle lights to work.

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LCD OPERATION
If shows up, there is an error. The indicated numeric codes are defined as follows:
Definition Solution(s)
Error
code
Voltage too low
48V is under 42V // 36V is under 32V Charge battery, or replace.
Brake is stuck or shorted
1. Check the brake to make sure it’s not stuck.
2. Unplug the brake wire to see if message goes
away. If it does, the wire maybe shorted.
Crank sensor: no signal or no phase
At power on with power assistance level (0),
error code (4) may appear. The code should
disappear automatically after 30 seconds, or
when you start pedaling.
If you start pedaling, but the code stays on
within the first 30 seconds, it indicates there is
no flash signal from the crank sensor.
*Sensor needs to be replaced.
Motor overload, reduce motor output
1. Shutdown and restart the system.
2. Put on max assistance level.
3. Motor requires repair.
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2
4
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LCD OPERATION
Controller temperature
exceeds 158ºF (70ºC)
Power off and wait until the temperature
decrease back to normal about 10 minutes.
Motor Hall is abnormal
1. Is the connection between motor and controller
loose or broken?
2. Motor requires repair.
Motor overcurrent
1. Shutdown and restart the system.
2. Motor requires repair.
Wheel diameter Sensor abnormal Check wheel sensor or wheel magnet
Voltage too high
48V system: battery is above 60V
36V system: battery is above 44V
Replace the battery.
Lost or abnormal communication
between LCD and controller.
1. Shutdown and restart the system.
2. Is the wire between the LCD and controller
loose or broken?
3. Controller or LCD may require repair.
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NOTES
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KHS, Inc.
2840 E. Harcourt St.
Rancho Dominguez, CA 90221 USA
Tel: [phone], Press '2'
khsbicycles.com