RMA 510
English
18
When delivered, the battery is not fully 
charged.
It is advisable to charge the battery 
completely before using it for the first 
time.
N Connect the charger to the power 
supply – mains voltage and 
operating voltage of the charger 
must be the same – see 
"Connecting Charger to Power 
Supply".
Operate the charger only in a closed, dry 
space at ambient temperatures between 
41 °F (5 ° C) and 104 °F (40 °C). 
Only charge dry batteries. Allow a damp 
battery to dry before charging.
N Slide the battery (1) into the 
charger (2) until you start to feel 
resistance – then push it in until it 
engages.
The LED (3) on the charger comes on 
when the battery is inserted – see "LED 
on Charger"
Charging begins as soon as the 
LEDs (4) on the battery glow green – 
see "LEDs on Battery".
Charge time depends on a number of 
factors, including battery condition, 
ambient temperature, etc., and may 
therefore vary from the times specified.
The battery heats up during operation in 
the power tool. If a hot battery is inserted 
in the charger, it may be necessary to 
cool it down before charging. The 
charging process begins only after the 
battery has cooled down. The time 
required for cooling may prolong the 
charge time.
The battery and charger heat up during 
the charging process.
AL 300, AL 500 Chargers
The AL 300 and AL 500 chargers are 
equipped with a battery cooling fan, 
which can be heard during operation.
AL 100 Charger
The AL 100 charger has no fan and 
waits for the battery to cool down before 
starting the charging process. The 
battery is cooled by heat dissipation in 
the ambient air.
End of Charge
The charger switches itself off 
automatically when the battery is fully 
charged:
– LEDs on the battery go off.
– The LED on the charger goes off.
– The charger's fan is switched off (if 
charger is so equipped).
Remove the fully charged battery from 
the charger.
Charging the Battery