The APTO technology automatically recognizes the type of battery you are using and then automatically provides a customized charging program, informing you of the time required until the battery is charged and ready for use. There is no need to press buttons or select modes – simply connect the CS ONE to any 12V battery and charge. The polarity-free clamps mean you don’t even have to worry about which clamp goes where, so you will never make a wrong connection again. The clamps are also spark-free, so don’t worry if you accidentally touch them together.

Unlock additional features using the CTEK app with Bluetooth capability. Select "RECOND" to restore and recondition your battery. Select "WAKE UP" for lithium batteries with undervoltage protection or to reactivate lead-acid batteries that have been deeply discharged. Select "SUPPLY" to turn the CS ONE into a useful 12V power source. You can also monitor the voltage and current supplied by the charger.