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3. Connect a Type C, USB adapter/
charger to battery charging port
located on the front of the battery.
(Figure 2)
4. Connect the opposite end of charging
cable to a power source and note
that battery charging LEDs light up.
When all three are lit, the battery is
fully charged. Charge time is typically
5 hours. See the table below to
determine the charging status of the
battery.
Fuel Gauge
Volt of battery <3.6V
3.6V ≤ Volt of battery <3.9V
3.9V ≤ Volt of battery
4.165V ≤ Volt of battery <4.235
(fully charged)
5. Install the Li-ion battery pack into the unit as described.
(Figure 7 - Figure 8)
©2023 Johnson Level & Tool - REV 1
Figure 2
LED1
LED2
Flashing
OFF
ON
Flashing
ON
ON
ON
ON
LED3
OFF
OFF
Flashing
ON
5
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