CTEK CS ONE. Super simple. Super smart. Super safe.

CTEK’s CS ONE is the perfect tool for winter battery charging and maintenance. It’s got our revolutionary APTO™ (Adaptive Charging) technology on board which does all the thinking for you. Just connect it up and it’ll automatically work out a customised charging program tailored to the exact needs of your battery. It also has an automatic ambient temperature sensor that adjusts the output voltage – even in conditions right down to -30°C (-22°C) – so it’ll never under or overcharge your battery. And it’s super safe – you can leave CS ONE connected to your vehicle’s battery all winter for continuous maintenance and top up charging.

CS ONE

  • Fully automatic charging – no buttons to press or modes to select
  • APTO™ (Adaptive Charging) technology gives you the most appropriate charge for your battery
  • Ambient temperature adjustment automatically adjusts output voltage, even in extreme cold conditions
  • Polarity free clamps – automatically recognises which clamp is on which terminal
  • Countdown indicator shows when you can restart your battery and how long to go till fully charged
  • Works with CTEK App to unlock ‘RECOND’, ‘LITHIUM WAKE UP’ and ‘SUPPLY’ modes
  • ‘RECOND’ mode restores battery life and reconditions flat or deeply discharged batteries
  • ‘LITHIUM WAKE UP’ opens the under voltage protection (UVP) found in lithium batteries and automatically restarts the charging cycle
  • ‘SUPPLY’ mode turns CS ONE into a 12V power supply to keep vehicle settings safe if you need to remove the battery
CS ONE

CTEK’s tips for peace of mind winter storage

Safe storage

If you know your vehicle is going to be out of action for a few months, put it under cover if you can – in a garage, a shed or under a winter-proof car cover.

Get charged

Your vehicle battery has done a lot of hard work over the summer, so make sure it’s fully charged before you put it into winter storage.

Keep it topped up

Chargers like CTEK’s CS ONE are fully automatic and can safely stay connected to the battery for long periods of time to keep it in peak condition.

Get winter smart

Keeping your battery regularly maintained can increase its life and save you the expense of seasonal battery replacement.