Ctek 800 Battery Conditioner The CTEK800 battery conditioner uses PRIMARY SWITCHED electronics to make it the most advanced conditioner available today. The CTEK800 is designed for keeping good batteries in good condition. Your battery should have a minimum of 8V in order for it to tell the conditioner what is required. The conditioner constantly monitors the voltage after it has charged the battery to 14.4V and then only charges the battery when the voltage drops to 95% efficiency due to alarms or natural drainage. This eliminates the danger of over-charging the battery allowing the conditioner to be left connected for many months at a time. ASTON WORKSHOP RECCOMEND YOU REGULARLY CHECK ALL ELECTRICAL ITEMS THAT ARE TO BE LEFT IN A PLUGGED IN SWITCHED ON STATE The 800 works by charging the battery to 95% at 0.8amps, it then reduces its input current to 0.4 amps to slowly bring the battery to its maximum voltage before turning off and monitoring the battery until it falls back to 95% efficiency (approx 12.9v) when it will then turn on again and condition the battery back to 100%. Please contact us if you require any further information about this product:Tel. +44 (0) 1207 233 525 or complete a request form here: Contact Us