The CS ONE sets a new standard in battery charging delivering elite performance yet powerful simplicity for those who demand the very best. Through its revolutionary polarity-free APTO technology, the CS ONE does all the thinking for you, automatically adapting its charge to what your battery needs. The Wi-Fi and Bluetooth-connected CTEK app unlocks advanced features and functionality, giving you full control of battery care when you want it. Powerful Simplicity, Elite Performance.

The CS ONE has been created for serious enthusiasts and vehicle owners who demand the very best from an intelligent battery charger. From the revolutionary APTO technology to the black polarity-free clamps, the CS ONE offers unparallelled ease of use and functionality, automatically recognising the battery type, size and health, to deliver a customised charging program for your specific battery. The Gen 2 version of the CS ONE offers Wi-Fi and Bluetooth connectivity to the CTEK App, unlocking additional features such as RECOND, WAKE UP and SUPPLY, as well as advanced charging insights. Remove the guesswork, eliminate frustration. The CS ONE is the ultimate charging solution for those who settle for nothing less than perfection.

Adaptive charging: APTO technology automatically adapts charging to any 12V battery, including lithium
The clamps can be safely connected to either charging point when charging
Connect & forget: Can be left safely connected for long periods during maintenance charging
Seamless connectivity: Wi-Fi and Bluetooth-enabled app for additional features and insights
Improve battery life: Extend battery lifetime by up to 3 times through regular charging
Wake Up lithium batteries with under voltage protection or deeply discharged lead-acid batteries
Recond program to restore and recondition lead-acid batteries
Supply program to support the battery during service work and retain contact power to the vehicle during battery replacement/removal
Charge session monitoring, detailed charging history and activity log
Custom charging reminders and automatic notifications on errors and updates
Automatic temperature compensation for extreme weather
5-year warranty