Skil DL529301 Guide D'utilisation page 160

Fuel Gauge (Fig .3)
The four LEDs on the front
housing of the battery indicate
the current battery capacity when
the battery-indicator button is
depressed.
If the first LED on the Fuel Gauge
flashes slowly when the battery-
indicator button is depressed,
this indicates a low charge level.
Recharge the battery.
If the first and third LED on the fuel gauge rapidly flash green when
the battery-indicator button is depressed, this indicates that the
battery is too hot. Cool the battery pack under air flow.
To Attach/Detach Battery Pack
Follow the instructions in the Owner's Manual for the individual SKIL
tool.
16
Fig. 3
Battery-Indicator
Button