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CTEK 40-206 MXS 5.0 12-Volt Smart Battery Charger

CTEK 40-206 MXS 5.0 12-Volt Smart Battery Charger

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Brand: CTEK

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The Best In Car Care Since 1989!

CTEK 40-206 MXS 5.0 12-Volt Smart Battery Charger

The The CTEK 40-206 MXS 5.0 12 volt battery charger features a unique 8-step charging system that safely charges and maintains your vehicle’s 12-volt battery. Fully automatic microprocessor controlled advanced charging modes provide safe charge and maintenance, and the built-in automatic temperature sensor adjusts the charging level in hot or cold weather. The MXS 5.0 features a reconditioning function that restores stratified and deeply discharged batteries. The MXS 5.0 works on all lead-acid 12-volt batteries. Alligator clamps and eyelets included. Back by a 5-year warranty.


  • Charges batteries up to 110Ah. Maintains larger batteries up to 160Ah
  • Unique reconditioning mode
  • Built-in temperature sensing capabilities
  • AGM and new EFB (Enhanced Flooded Battery) battery charging capability
  • 8 Step charging program
  • Completely sealed unit
  • Spark proof and reverse - polarity protected
  • Clean voltage & current
  • Premium input and output cable with robust strain relief
  • 5-year warranty

The MXS 5.0 (part# 40-206) offers a unique eight-step approach to battery care.
Fully automatic microprocessor controlled charger with built-in automatic temperature sensor features a unique combination of advanced charging modes and makes the new MXS 5.0 the fastest, most effective, and versatile consumer charger CTEK has ever made. Alligator clamps and eyelets included.

The MXS 5.0 (part# 40-206) features capabilities for improved charging in all weather. It is the perfect charger for the user with multiple vehicle types and higher demand battery charging and maintenance requirements. The MXS 5.0 offers features such as a special reconditioning function that restores stratified and deeply discharged batteries, unique maintenance charging, and the charging of demanding AGM batteries (i.e. Optima). The charger is splash and dustproof, designed to protect vehicle electronics and non-sparking, reverse polarity protected, and short-circuit proof. It is delivered with a 5-year warranty. Provides an outstanding charging experience!



Read the Top 10 Benefits of Using a CTEK Smarter Charger.

#1 Maximizes Battery Life

CTEK Smarter Chargers maximize the life of your battery. Our patented desulphation function can extend the life of your current battery 2-3 times that of its normal life. With an annual growth rate of over 50% for the last six years, people around the world are finding CTEK chargers as a valuable investment to keep their vehicles, boats, motorcycles, and much more, in prime condition.

#2 High-Quality Engineering

CTEK Smarter Chargers are of the highest quality engineering, but don’t take our word for it. CTEK is the preferred battery charger for some of the most prestigious engineering brands in the world: Porsche, Audi, Lamborghini, Bentley Motors, Scania AB, BMW, Rolls-Royce Motor Cars, Chevrolet (Corvette), Ferrari, Alfa Romeo S.p.A., Maybach-Motorenbau GmbH, Aston Martin, Arctic Cat, Yamaha Motor Company, Maserati, Mercedes, and more. Plus, they are available at an affordable cost.

#3 Monitors and Maintains Battery Performance

CTEK Smarter Chargers smartly maintain the battery in prime condition through a series of 4 to 8 steps in our unique charging process. Our chargers constantly monitor the battery to understand the battery condition and then act accordingly: desulphate, revive, charge, condition, and maintain. CTEK Smarter Chargers also regulate the main voltage to protect sensitive and expensive electronic and audio equipment. They even have a backup power supply that allows you to charge vehicle batteries without losing your vehicle's program settings.

#4 Saves Time, Money and the Environment

CTEK Smarter Chargers can help you save time, battery costs, towing costs, repair costs, and the environment through regular battery maintenance. Why? Battery failure is often reported as the number one cause for breakdowns around the world and with modern vehicles' complex and sensitive electronic equipment, this continues to be a big issue. As a result, motorists are unnecessarily paying for battery replacements, towing, and mechanic time, then throwing their existing batteries away! (and doing so regularly)

#5 Re-Conditions Old / Dead Batteries 

CTEK Smarter Chargers recondition and help revive dead batteries. Our unique reconditioning step allows the battery to recover quickly and last longer.

#6 Affordable Investment

For the cost of a battery, a CTEK charger can keep all of your batteries in prime condition and offer you peace of mind for years to come.

#7 Sparkproof and Shockproof to prevent accidents

CTEK Smarter Chargers are safer to charge with because their spark-free, short-circuit-proof design incorporates a feature that prevents reverse polarity. In other words, the charger will know if you attach one end to the wrong battery post and will not operate if it is attached incorrectly. Conveniently, the red alarm light on the charger alerts you if it wasn’t attached correctly so that you can get it connected properly.

#8 Reliable and nearly indestructible

CTEK Smarter Chargers are durable and can perform under extreme weather environments, with a temperature range of (-4°F to +122°F). They are shockproof, weatherproof, dustproof, and fully approved for outdoor use (IP44-IP65).

#9 Set and Forget

Even though CTEK Smarter Chargers are sophisticated “under the hood”, they are easy to use. CTEK’s patented float/pulse charging allows ‘set and forget’ for months at a time without harming the battery. Motorists do not need to have specific knowledge of batteries or their charging methods. With each Smarter Charger intended for unsupervised use, CTEK is easy and safe to connect. There is no need to even disconnect the battery during use – it’s simply ‘plug and play’.

#10 Multi-Purpose

CTEK’s line of Smarter Chargers suits all types of lead-acid batteries for vehicles of all sizes and types including cars, motorbikes, marine vessels, agricultural vehicles, motor homes, lawn mowers, and more.




14.4/14.7/15.8 V

Input voltage AC

100-120VAC, 50-60Hz

Charging current

Max 4.3 A

Charger type

8 step, fully automatic charging cycle

Battery type

12 V lead-acid batteries

Battery capacity

1.2–110 Ah, maintenance charging up to 160 Ah


IP65 (splash and dust proof)


5-year warranty