CTEK 56-382 General Information Cable length: 0.55m 8.4mm ring terminals. CTEK's new add-on Comfort Indicator eyelet is designed and developed to make vehicle battery maintenance easy and convenient. The Comfort Indicator shows the status of the battery and indicates when the harmful sulphation process begins, allowing a quick and easy remedial charge to be applied before battery degradation occurs. Compatible with CTEK charger with a Comfort Connect compatible connector, ie. black inline connector with orange inner section within battery connection leads (NOT XT14000 or XS25000).