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Practical LED indicator for immediate indication of battery charge levels. 12V car and motorcycle batteries.


The CTEK Indicator eyelet M8 is a practical LED indicator that provides a simple way of identifying the state of your battery. Compatible with all 12V lead-acid batteries. Designed for permenant attachment to the battery, the simple LED ‘traffic light’ system will give you an immediate indication to battery charge levels, so you know when to charge. The CTEK Indicator eyelet M8 features CTEK’s unique Connect system, so it can be attached to a CTEK charger, providing easy access to the battery. It’s compatible with CTEK XC 0.8, XS 0.8, MXS 3.8, MXS 5.0, MXS 5.0 Polar, MXS 5.0 Test & Charge, CT5 Time to Go, CT5 Start-Stop, CT5 Powersport, MXS 7.0 & MXS 10 chargers. CTEK is the pioneering and trusted manufacturer of innovative battery management systems and supplier of chargers to the world’s most recognised car manufacturers.


  • 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.


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