LED Indicator to show the level of battery charge using your vehicle’s 12V cigarette lighter or accessory socket The CTEK INDICATOR CIG PLUG is an easy to use LED indicator that lets you quickly check the state of your battery. Designed to give you quick and easy access to the battery, just plug it into your vehicle’s 12V cigarette lighter or accessory socket. The simple LED ‘traffic light’ system will give you an immediate indication of your battery charge level, so you know when it needs charging. The CTEK INDICATOR CIG PLUG features CTEK’s unique CONNECT system so it can be attached to CTEK chargers up to 8 A to charge your battery using the 12V socket. This unit is a universal model that fits both 12 mm and 21 mm sockets. Please note that the socket must be powered even when the ignition is in the ‘Off’ position. Features Red: means the battery charge is below 12.4 V. It’s definitely time to charge the battery. Yellow: means the battery charge is between 12.4 and 12.65 V. It’s time to start thinking about charging the battery. Green: means the battery charge is more than 12.65 V. OK! No need for charging.
