20 ENGLISHChecking the battery level on thebattery cartridgeOnly for battery cartridges with the indicator12Fig.34► 1. Indicator lamps 2. Check buttonPress the check button on the battery cartridge to indi-cate the remaining battery capacity. The indicator lampslight up for a few seconds.Indicator lamps RemainingcapacityLighted Off Blinking75% to 100%50% to 75%25% to 50%0% to 25%Charge thebattery.The batterymay havemalfunctioned.NOTE: Depending on the conditions of use and theambient temperature, the indication may differ slightlyfrom the actual capacity.NOTE: The first (far left) indicator lamp will blink whenthe battery protection system works.Switching the battery cartridge1Fig.35► 1. Battery selection switchThe machine uses 2 battery cartridges for operationat a time. Up to 4 battery cartridges can be installedto the machine. Before operating the machine, selectthe battery cartridges used for operation by turning thebattery selection switch.NOTICE: If the battery cartridge is in the follow-ing condition, the machine does not work even ifyou switch the battery with the battery selectionswitch.• The remaining capacity of at least one of thebattery cartridges is empty.• At least one of the battery cartridges isoverheated.In this case, remove the empty or overheatedbattery cartridge, or replace the battery cartridgewith a charged one.NOTE: If only 2 battery cartridges are installed to themachine, be sure to select the installed battery car-tridges with the battery selection switch.