18GETTING STARTEDBATTERY OPERATIONBefore operating the device for the first time remove the T 8.0 Afuse from the packaging and place it in the fuse holder.This fuse prevents the device switching on unintentionally duringtransport.After the fuse has been inserted the charge status display will notfunction properly until the battery has been fully discharged once.Battery operation is only possible if the battery is chargedsufficiently. Otherwise the MSK 125 cannot be switched on.NoteOnce the battery has fully discharged it must be rechargedimmediately to avoid damage to the battery.Charging starts automatically when the device is connected tothe mains. A protection circuit prevents the battery from beingovercharged.Battery operation is indicated by a red LED next to thebutton.The battery capacity is 6.45 Ah.Press the button to check the charging status of thelithium-ion battery.The LCD display shows the following values:• LNB or remote feed voltage: 14.0 V• LNB or remote feed current: 255 mA• 22 kHz switched on• Battery charge status: 80 %• Bar graph (8 x 10 %)Press the button again to exit this operating mode.