Makita BTW120 Impact Driver User Manual


 
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5. If you leave the battery cartridge in the charger after the
charging cycle is complete, the charger will switch into
its trickle charge (maintenance charge) mode which
will last approximately 24 hours.
6. After charging, unplug the charger from the power
source.
NOTE:
The battery charger is for charging Makita battery
cartridge. Never use it for other purposes or for other
manufacturers batteries.
When you charge a new battery cartridge or a battery
cartridge which has not been used for a long period of
time, it may not accept a full charge. This is a normal
condition and does not indicate a problem. You can
recharge the battery cartridge fully after discharging it
completely and recharging a couple of times.
If you charge a battery cartridge from a just operated
tool or battery cartridge which has been left in a location
exposed to direct sunlight for a long time, the charging
light may flash in red color. If this occurs, wait for a while.
Charging will begin after the battery cartridge is cooled
by the cooling fan installed in the charger. When the
temperature on battery is more than approx. 70°C, two
charging lights may flash in red color, and when approx.
50°C - 70°C, one charging light in red color.
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