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OPERATING INSTRUCTIONS
Read these instructions carefully before operating and keep for future reference.
CHARGING KTB2
NOTE: DO NOT attempt to insert other USB connector types into USB-A or
USB-C ports (FIG. B)
NOTE: Charge completely before using. To maximize Li-ion battery life, see
Maintenance and Storage sections (other side).
When the USB ports are properly sealed with the Port Cover 6 , the KTB2 is
rated for IP65 ingress protection (dustproof and resistant to low-pressure direct
water contact). Functionality is limited to the work light ONLY in wet/damp
or dusty conditions, and should not be recharged or used for charging other
devices in such conditions.
• Connect the provided cable to the USB-C Input/Output port 4 , then connect the
other end to any powered standard USB-A port.
• The battery level indicator LEDs 1 will illuminate (see Table 1).
• A full charge could take 4 to 10 hours, depending on the charger's output.
PASS-THRU DEVICE CHARGING
• Connect KTB2 to a charging source (i.e. wall charger), then connect your device to
any of the output ports.
• In this configuration, the connected device will first charge completely, then KTB2
will begin charging. If the device is disconnected before fully charging, KTB2 will
begin charging immediately.
TABLE 1
Not Illuminated
Solid Green
Blinking Green
LED
Status
Bottom LED blinking red
Bottom LED blinking green
Bottom LED solid green
Next LED blinking green
Bottom 2 LEDs solid green
Next LED blinking green
Bottom 3 LEDs solid green
Next LED blinking green
All LEDs solid green
BATTERY STATUS INDICATORS
Press the power button 2 to check KTB2's battery level (Table 2). The indicator
LEDs 1 will automatically turn off after 10 seconds if the power button is not
pressed, or no device is connected for charging. The indicator LEDs will remain
illuminated until charging is complete. NOTE: If no load is detected within 5
seconds of the LEDs turning off, the outputs 3 , 4 , 5 will shut down.
TABLE 2
Not Illuminated
Solid Green
Blinking Green
LED
Status
All LEDs solid green
Top LED off,
bottom 3 LEDs solid green
Top 2 LEDs off,
bottom 2 LEDs solid green
Bottom LED solid green
Bottom LED blinking red
No LEDs illuminated
CHARGING DEVICES
NOTE: For best results, use cable provided.
Auto-Sensing ports: The outputs 3 , 4 , 5 will automatically turn on when a
device is connected. NOTE: Certain devices that require very low current to charge
may not be detected by the auto-sensing feature. For such devices, press the power
button
2
1. Connect the charging cable to one of KTB2's USB ports 3 , 4 , 5 .
2. Connect the cable to the device's charging port. The battery status indicator
LEDs
1
long as charging is occurring. The device being charged should also provide
indication that charging has begun.
KTB2 will automatically shut down once charging is complete and current is no
longer being drawn.
USING WORK LIGHT
Quick-press the Power Button
lumens) setting. The battery status indicator LEDs will illuminate. Quick-press twice
again to enter the low (100 lumens) setting. Quick-press twice again to turn off the
work light.
The KTB2 features a built-in kickstand
area. Simply lift the stand and position to the desired angle (FIG. C).
Other devices can be charged while using the work light, however, this will effect
the operation time of the light, based on the device's power requirement. If the
light will be used for long periods of time while devices are being charged, it is
recommended to switch to the low (100 lumens) setting to maximize battery life
and capacity. Disconnect the device once it is completely charged to divert power
Solid Red
Blinking Red
back to the light.
% Charged
0% to 10% charged
The KTB2 has built-in advanced protection to prevent damage to the battery. The
battery has protection for Output over-current, Short-circuit, Voltage drop, and
High/Low Temperature. If any of these occur, refer to Table 3:
11% to 25% charged
Not Illuminated
LED
26% to 50% charged
51% to 75% charged
76% to 99% charged
100% charged
KTB2 will not recharge if:
1. The cable is not properly connected to charger output or battery input.
Check connection.
2. The charging cable is damaged. Replace with equivalent cable.
Solid Red
Blinking Red
3. The charging port or device is not able to supply the minimum voltage and
% Charged
current for charging. Connect to appropriate charging source.
4. The connector on the charger or battery is damaged. Replace charger or battery.
76% to 100%
5. An internal battery fault has occurred inside KTB2, preventing the battery
charge remaining
from recharging. See scenarios above. If none apply, KTB2 may be damaged.
Contact Klein Tools Customer Service. DO NOT ATTEMPT TO REPAIR.
51% to 75%
charge remaining
26% to 50%
charge remaining
11% to 25%
charge remaining
Mini-A
1% to 10%
charge remaining
0% charge remaining,
Micro-A
rechargnig required
OPERATING INSTRUCTIONS
to begin charging.
illuminate and charging begins. LEDs will remain illuminated as
twice to turn on the work light at high (200
2
for hands-free illumination of the work
8
TROUBLESHOOTING
TABLE 3
Solid Green
Blinking Green
Solid Red
Possible Issue
Over-current or short circuit: KTB2 will automatically shut down.
Disconnect KTB2 from the charger or device being charged. Wait for
5-seconds and then reconnect the device being charged or battery
charger. Press the power button to reset and begin charging.
High or low temperature: If KTB2 senses abnormal operating
temperatures, high or low, it will shut down. It will not recharge or
charge until the battery returns to normal operating temperatures (See
Operating temperature section). All status LEDs will flash green for
2 seconds if the power button is pressed. The LED status will return
to normal status (See tables 1 & 2) ONLY after KTB2 senses normal
temperatures. Disconnect KTB2 from all chargers and devices.
Voltage drop: If KTB2's voltage level drops (discharge over time
or simply drained completely), it will enter Low Power Protection
Mode. The bottom LED will illuminate solid red for 2 seconds when
the power button is pressed. KTB2 will NOT support any device
charging at this time, and must be recharged to a minimum of 5%
before the output ports will activate for charging.
FIG. B
Mini-B
Micro-B
Blinking Red
Type C
FIG. C
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