jaltest tools JT3013 Mode D'emploi page 6

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5. If the external voltage is too high (such as 30 V battery), the front display 8
displays "Er2" with a continuous alarm sound. In this case, you need to
switch to a higher voltage output product.
6. If there is no problem with the connection, the front display 8 displays the
"external battery voltage value". At this time, the voltage value of the
external battery is determined to be the gear position of the external
battery. Generally, the battery is 12 V for 16.0 V or less, and the 24 V battery
for 16.0 V or higher. Then, turn on the high current switch 1 of the unit,
the high current switch is placed in the "ON" position.
7. Start the vehicle, note that the start duration must not exceed 5 seconds.
8. If the engine does not start successfully, please wait at least 3 minutes and
try again.
9. After the engine starts successfully, turn off the high current switch 1 of
the unit, turn the high current switch to the "OFF" position.
10. First disconnect the black clamp (-) and put it back into the unit.
11. Disconnect the red clamp (+) and put it back into the unit.
12. Charge the unit as soon as possible.
Note: When the clamp is connected to an external battery that is too
low, the system will not recognize it properly. When the system cannot
be recognized properly, the user needs to judge the internal and external
voltage position and polarity by himself, so that it is completely correct and
then use it carefully.
USB PORT INSTRUCTIONS
1. Press the "USB/LAMP" reset switch on the panel 3 (Continuous pressing
time ≤ 3 seconds).
2. USB port 6 Automatic output 5 VDC 2.4 A (Max). At the same time, the
corresponding power work light 5 is on.
3. Connect a standard USB cable to the unit and connect to the device to be
charged to supply power.
4. After use, unplug the USB cable and press the "USB/LAMP" switch to
turn it off.
5. It is automatically turned off after continuous use for more than 8 hours.