CTEK Comfort Indicator Eyelet (Part No. 56-382) is designed and developed to make the maintenance of the battery in the vehicle easy and convenient. Comfort Indicator easily shows the status on the battery and makes sure that the battery can always get the care it needs. It is perfectly suited for permanent installation on batteries that are hard to reach, for example on the motorcycle, lawn mower and Jet Ski. CTEK Comfort Indicator can prolong the life expectancy of the battery as it makes sure it can always be fully charged and it indicates when the harmful sulfation process begins.