COMFORT INDICATOR uses a simple ‘traffic light’ system to show state of charge of your battery. A flashing green light shows the battery does not require charging. Orange means the battery should be charged to avoid harmful acid stratification. A red light warns that the attery is discharged to a point where sulphation – the main battery killer – is occurring and also that the vehicle may be in danger of not starting. Easy to use, there are a number of options for permanent connection close to the battery (eyelet), remotely (panel) or temporary (clamp) – ideal for workshops and showrooms.Should charging be required the cap can be removed from the unit and a compatible CTEK charger plugged in to restore the battery to fully charged status.