CTEK MXS 3.8 Car and Motorcycle Advance Battery Charger and Maintainer

Save $2.25

$147.70 $149.95

Shipping calculated at checkout

In stock


Brand History:

The CTEK story starts over 30 years ago in Vikmanshyttan, a small village in Dalarna in Sweden. This is where our founder – Swedish inventor Bengt Wahlqvist – created the first ever battery charger to use electronic pulse technology.

And, thanks to Bengt’s technical expertise and perseverance, the world’s first ‘smart’ battery charger was born.

CTEK acquired Chargestorm, Scandinavia's largest producer and developer of electric vehicle (EV) charging solutions; a reflection of our strong commitment to entering this fast-growing sector. With Chargestorm’s strong product base, cutting edge technology and expertise in EV and CTEK’s global presence and reputation for quality and innovation within battery management, we are already taking the global EV market by storm. More about the merger of CTEK & Chargestorm.

Product Description:


Automatic maintenance charger for car and motorcycle batteries

The MXS 3.8 microprocessor controlled 7 step battery charger and maintainer is suitable for batteries from 1.2Ah-85Ah. Features include battery diagnosis to establish whether your battery can receive and retain a charge, a patented desulphation program and a ‘Snowflake’ program for charging on cold days. It also includes selectable programs for charging smaller and normal batteries. The MXS 3.8 uses CTEK’s patented float/pulse system, which is the most efficient maintenance mode when a battery is connected for long periods. The MXS 3.8 is simple to use and you can follow the whole charging process on the clear, easy to read display.


  • Maintains batteries up to 130Ah
  • Splash and dust proof (IP65)
  • Safe spark free operation
  • Short circuit proof


Product Video:




 How to connect:

Charging Process:


Technical Data:

Battery capacity:

1.2–130 Ah


Charging category:

AC charging


Back current drain:

Corresponding to less than 1 Ah/month


Back Current Drain TEXT:

*) Back current drain is the current that drains the battery if the charger is not connected to the mains. CTEK chargers have a very low back current.


Battery voltage:

12 V


Battery chemistry:

Lead acid (AGM, GEL, EFB, MF, CaCa)


Ambient operating temperature:

-20 ˚C to +50 ˚C



220–240 VAC, 50–60 Hz, 0.5 A



14.4 /14.7 V, 3.8 A


Start voltage:

2.0 V



Less than 4 %


Ripple TEXT:

**) The quality of the charging voltage and charging current is very important. A high current ripple heats up the battery which has an aging effect on the positive electrode. High voltage ripple could harm other equipment that is connected to the battery. CTEK battery chargers produce very clean voltage and current with low ripple.


Battery types:

12 V:; WET; MF; Ca/Ca; AGM; GEL


Ingress protection:




5 years


Warranty headline:

Limited Warranty


Warranty details:

CTEK issues a limited warranty to the original purchaser of the product. Depending on the product, the limited warranty period will vary. The limited warranty is not transferable. The warranty applies to manufacturing faults and material defects. The warranty is void if the product has been handled carelessly or repaired by anyone other than CTEK or its authorized representatives. CTEK makes no warranty other than this limited warranty and is not liable for any other costs other than those mentioned above, i.e. no consequential damages. Moreover, CTEK is not obligated to any other warranty other than this warranty.


Payment & Security

American Express Apple Pay Mastercard PayPal Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Estimate shipping

You may also like

Recently viewed