Fein ALG 20 Manual Original página 11

In the case of an extreme discharge, the charging process
can be delayed for several minutes (red flashing LED dis-
play) after pushing on the battery.
If the battery is not charged despite a normal tempera-
ture, it must be assumed that the battery is faulty.
Once the battery is charged, the device automatically
switches from fast-charging to conservation-charging; the
green lamp illuminates. Repeatedly plugging in a charged
battery leads to over-charging and impairs its service life;
this must therefore be avoided.
Key to the LED display (1).
LED display
Red
Red
Red flashing
Red + green flashing
Green
Cleaning and care.
!
Risk of injury
by switching the tool ON unintentionally.
Before cleaning, pull out the mains plug.
Carry out the following once a week, or more often if the
device is used more frequently:
Keep the contacts in the slip-on cable socket clean.
Clean the venting openings.
Only dry-clean the electrical parts.
Make sure that no metal chips penetrate the battery-
charger housing.
New batteries that have not yet been formed, or batter-
ies with a very low charge that have to be re-formed, do
not reach their full capacity until after 3 – 5 charging/
discharging cycles.
The charging time for the Fein battery charger ALG 20
lies between 20 to 60 minutes, depending on the capac-
ity of the battery.
If the battery becomes discharged within a short time
despite it having been charged correctly, it has reached
the end of its service life.
Condition
Without the battery pushed on:
Ready for use.
With the battery pushed on:
Battery is faulty,
Contact cut-out.
The upper or lower temperature limit of the battery has been
exceeded; the temperature sensor is faulty or the battery is dis-
charged.
Fast-charging is not possible.
Only the conservation-charging is active.
Fast-charging is active.
Fast-charging completed (battery is fully charged).
The conservation-charging is active.
Maintenance and repairs.
!
Risk of injury
Service, testing and repairs may only be carried out by elec-
trical engineers in conformity with the regulations valid in
the respective country.
Maintenance and repairs.
We recommend our customer service department
(repair centre), Fein authorised service centres and agen-
cies. Addresses can be found at the end of these operat-
ing instructions and in the enclosed safety instructions.
Hand over the operating instructions to the repair work-
shop.
en
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