7FUNCTIONALDESCRIPTION CAUTION:• Always be sure that the tool is switched off and thebattery cartridge is removed before adjusting orchecking function on the tool.Installing or removing battery cartridge• Always switch off the tool before insertion or removal ofthe battery cartridge.• To remove the battery cartridge, withdraw it from the toolwhile pressing the push buttons on both sides of thecartridge.• To insert the battery cartridge, align the tongue on thebattery cartridge with the groove in the housing and slipit into place. Always insert it all the way until it locks inplace with a little click. If not, it may accidentally fall outof the tool, causing injury to you or someone around you.• Do not use force when inserting the battery cartridge. Ifthe cartridge does not slide in easily, it is not beinginserted correctly.Charging1. Plug the battery charger into the proper A/C voltagesource. The charging light will flash in green color.2. Insert the battery cartridge so that the plus and minusterminals on the battery cartridge are on the same sidesas their respective markings on the battery charger.Insert the cartridge fully into the port so that it rests onthe charger port floor.3. When the battery cartridge is inserted, the charging lightcolor will change from green to red and charging willbegin. The charging light will remain lit steadily duringcharging.4. When the charging light color changes from red togreen, the charging cycle is complete.5. If you leave the battery cartridge in the charger after thecharging cycle is complete, the charger will switch intoits “trickle charge (maintenance charge)” mode whichwill last approximately 24 hours.6. After charging, unplug the charger from the powersource.1. Button2. Battery cartridge001873211. Battery cartridge2. Charging light00187412