CTEK Battery Sense - 40-149

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Product Details

Checks battery status with Bluetooth connectivity, free smartphone application

CTEK BATTERY SENSE is a Bluetooth® enabled, smart battery management tool. It’ll help you prevent vehicle breakdowns and maximise the performance of your 4WD batteries by giving you valuable, easy to understand information about the state of your battery’s charge. Just download the free app, connect the Battery Sense Monitor to your 4WD battery, follow the in-app instructions and your mobile phone will give you data 24/7, all year round. You can even sync multiple monitors to your phone for a complete dual battery management system. And if your battery’s charge falls to a critical level, Battery Sense will tell you when it’s time to reach for your CTEK battery charger.


  • Automatically syncs via Bluetooth®
  • Continuously monitors battery’s charge
  • Stores stats for up to 3 months
  • 2-year warranty

Part Number: 40-149

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About the Brand

The CTEK story began in a small village in Sweden, over 20 years ago. It is where the CTEK founder, inventor Bengt Wahlqvist, invented the first electronic pulse battery charger. Since then they’ve become one of the most popular battery chargers in the world, selling over a million battery chargers every year across 70 countries. The range of CTEK products and accessories are ideal for keeping both your vehicle and campsite power needs maintained with a great selection of products for almost every application. CTEK chargers are versatile with mounting and portable options available meaning you can get the most out of your charger in or out of the home garage.

The range not only covers both 12 & 24V options but most battery types as well. Making sure you have the right charger for your battery type is a must however most CTEK models covers popular battery types (lead-acid / lithium / AGM) which makes selecting the right one even easier. The chargers are also designed to be non-sparking, reverse polarity protected and short-circuit proof. Some models, like the MXS 25 12V charger, even have a battery reconditioning feature that helps restore deeply discharged batteries back to life. All products come with a 2-year manufacturer’s warranty.

A battery charger is an excellent investment when you have a 4WD vehicle. Depending on the specific product you choose, CTEK has different intelligent chargers for specific purposes like battery diagnosis, temperature sensing (ensuring optimised charging regardless of weather), and even continuous charging via power supply mode. CTEK battery chargers are designed for use with a range of vehicle types and sizes, including 4WDs, passenger vehicles, heavy vehicles and trucks, motorcycles, and even boats and other recreational vehicles. Designed with users in mind, the CTEK chargers are easy to operate and require minimal to no training - just plug and go.

CTEK has all of the add-ons for any vehicle, large or small to making charging convenient. CTEK accessories employ the patented 'CONNECT' system for a simple, safe, and secure connection to the charger. In addition, bumper, wall mount, solar panel charge kit, terminal, adapter cable, clamps, mounting bracket, and other accessories are available. So whether it is installing an auxiliary charging system in your rig or making sure your vehicles battery is reliably charged before your next adventure the range of CTEK chargers has something for you.

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