CTEK CS ONE Gen 2 UK Smart Battery Charger

The CTEK CS ONE Gen 2 UK is a premium 12V smart battery charger and maintainer, designed to make battery charging simple, intelligent and worry-free. Using CTEK’s advanced APTO™ adaptive charging technology, the CS ONE Gen 2 automatically detects the battery’s needs and adjusts the charging process to deliver the right level of charge with minimal input from the user.

Suitable for 12V lead-acid and lithium batteries, this charger is ideal for cars, motorcycles, campervans, caravans, motorhomes, boats and leisure vehicles. Whether you are maintaining a vehicle battery, looking after a leisure battery, recovering a deeply discharged battery or keeping a seasonal vehicle ready to use, the CS ONE Gen 2 offers smart, reliable battery care.

One of the standout features of the CS ONE Gen 2 is its polarity-free clamp design, allowing the clamps to be connected to either battery terminal without worrying about positive or negative orientation. This makes connecting the charger quicker and easier, especially in tight battery compartments or when charging multiple vehicles.

The CS ONE Gen 2 also includes a useful Wake Up mode, accessed through the CTEK App. This mode is designed to help restart charging on batteries that are too deeply discharged for normal detection, including lithium batteries with under-voltage protection and heavily discharged lead-acid batteries. This can be especially useful for leisure vehicles, stored cars, motorcycles, boats and seasonal batteries that may have been left flat for a long period.

With built-in Bluetooth and Wi-Fi connectivity, the charger can be paired with the CTEK App for additional control, battery insights and smart charging functions. Combined with its connect-and-forget maintenance charging, the CS ONE Gen 2 is a modern battery charger for users who want simple operation with advanced battery care in the background.

Key Features

• CTEK CS ONE Gen 2 UK smart battery charger and maintainer
• Suitable for 12V lead-acid and lithium batteries
• APTO™ adaptive charging technology automatically adjusts to the battery
• Wake Up mode via the CTEK App to help recover deeply discharged batteries or lithium batteries in under-voltage protection
• Polarity-free clamps for simple, worry-free connection
• Bluetooth and Wi-Fi connectivity
• App-based monitoring, control and diagnostics
• Connect-and-forget maintenance charging
• Helps charge, maintain, revive and restore vehicle batteries
• Spark-free and safe to use
• Ideal for cars, motorcycles, campervans, caravans, motorhomes and boats
• Supplied with UK plug and CONNECT CLAMP leads

Ideal For

• Car and motorcycle battery maintenance
• Campervan and caravan leisure batteries
• Motorhome battery care
• Boat and marine batteries
• Seasonal vehicle storage
• 12V lithium battery charging
• AGM, GEL, EFB and standard lead-acid batteries
• Batteries that are too low for normal charger detection
• Long-term battery maintenance

Why Choose the CTEK CS ONE Gen 2?

The CS ONE Gen 2 is designed for users who want a high-quality battery charger without the guesswork. Its adaptive charging technology, polarity-free connection and app-based smart features make it one of CTEK’s most user-friendly chargers.

For leisure vehicle owners, the Wake Up mode is a particularly helpful feature, offering a practical way to attempt recovery on deeply discharged batteries before replacing them. While not every failed battery can be saved, the CS ONE Gen 2 gives you a smarter way to charge, maintain and potentially revive batteries that have dropped too low for standard charging detection.

The CTEK CS ONE Gen 2 UK is a smart, modern and convenient choice for keeping 12V batteries charged, protected and ready to use.