NOTE:

The battery charger is for charging Makita battery cartridge. Never use it for other purposes or for other manufacturer’s 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 a battery cartridge which has been left in a location exposed to direct sunlight or heat 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 cools. The battery cartridge will cool faster if you remove the battery cartridge from the battery charger.

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.

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.

Tips for maintaining maximum battery life

1.Charge the battery cartridge before completely dis- charged.

Always stop tool operation and charge the battery car- tridge when you notice less tool power.

2.Never recharge a fully charged battery cartridge. Overcharging shortens the battery service life.

3.Charge the battery cartridge with room temperature at 10°C - 40°C (50°F - 104°F).

Let a hot battery cartridge cool down before charging it.

4.Charge the Nickel Metal Hydride battery cartridge when you do not use it for more than six months.

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Makita 6991D, 6992D instruction manual Trickle charge Maintenance charge