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• If charging light may flash in red color, battery condition is as below and charging may not start.
– Battery cartridge from just-operated tool or battery cartridge that has been left in a location exposed to direct sunlight for a long time.
– Battery cartridge that has been left for a long time in a location exposed to cold air.
When the battery cartridge is too hot, charging will begin after the cooling fan installed in the charger cools the battery cartridge. Charg-
ing will begin after the battery cartridge temperature reaches the degree at which charging is possible.
• If the charging light flashes alternately in green and red color, charging is not possible. The terminals on the charger or battery cartridge
are clogged with dust or the battery cartridge is worn out or damaged.
Cooling system
• This charger is equipped with cooling fan for heated battery in order to enable the battery to prove its own performance. Sound of
cooling air comes out during cooling, which means no trouble on the charger.
• Yellow light will flash for warning in the following cases.
– Trouble on cooling fan
– Incomplete cool down of battery, such as, being clogged with dust
The battery can be charged in spite of the yellow warning light. But the charging time will be longer than usual in this case.
Check the sound of cooling fan, vent on the charger and battery, which can be sometime clogged with dust.
• The cooling system is in order although no sound of cooling fan comes out, if the yellow warning light will not flash.
• Always keep clean the vent on charger and battery for cooling.
• The products should be sent to repair or maintenance, if the yellow warning light will frequently flash.
Conditioning charge
Conditioning charge can extend the life of battery by automatically searching the optimum charging condition for the batteries in every sit-
uation.
The battery employed in the following conditions repeatedly requires "conditioning charge" to prevent fast wear out. In that case, yellow
light lights up.
1.
Recharge of battery with its high temperature
2.
Recharge of battery with its low temperature
3.
Recharge of full charged battery
4.
Over-discharge of battery (continue to discharge battery in spite of down of power.)
The charging time of such battery is longer than usual.
Trickle charge (Maintenance charge)
If you leave the battery cartridge in the charger to prevent spontaneous discharging after full charge, the charger will switch into its "trickle
charge (maintenance charge)" mode and keep the battery cartridge fresh and fully charged.
To maintain product SAFETY and RELIABILITY, repairs, any other maintenance or adjustment should be performed by a Makita
Authorized Service Centers, always using Makita replacement parts.
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