Chicago, IL 60656


About CTEK


5521 N. Cumberland Ave, Suite 1104
Chicago, IL 60656
United States of America

More Info on CTEK

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CTEK manufactures a complete range of new generation high-quality, reliable battery chargers and accessories for private and professional use that are effective, user-friendly and safe to use. CTEK has become the most trusted name in battery charging, manufacturing and distributing both CTEK and OEM branded chargers, according to the company.  A provider of Switch Mode Technology, CTEK’s cutting-edge innovations have made it a global industry leader selling more than four million chargers in over 60 countries worldwide.

Products & Press Releases

Photo courtesy of CTEK
Battery Starting and Charging

Comfort Connect

June 7, 2024
The CTEK Comfort Connect, Nos. 56-260, 56-261, 56-329, allows technicians to quickly access difficult-to-reach batteries in need of charging. It comes in three different ...
CTEK Solar Panel Charge Kit
Battery Starting and Charging

CS FREE Solar Panel Charge Kit

Jan. 25, 2023
The CTEK CS FREE Solar Panel Charge Kit works with the CS FREE 4-in-1 portable charger without connecting to a power outlet, so you can charge and maintain your vehicle battery...
Cs Free
Battery Starting and Charging


June 2, 2021
The CTEK CS FREE is a portable battery charger and maintainer with adaptive boost technology. This technology analyzes a battery to give it the correct power it needs to safely...
Pro25 S Accessory 001
Battery Starting and Charging

PRO25S 25A Battery Charger and Power Supply

Sept. 18, 2020
The CTEK PRO25S 25A Battery Charger and Power Supply is designed to meet the needs of the automotive professional. Combining power and advanced technology with safety, portability...
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Service Repair

CTEK’s battery chargers help power frontline emergency vehicles and equipment

Sept. 15, 2020
For most, a flat vehicle battery is an inconvenience, but in the fight against COVID-19, it could mean life or death.
Ctek Multi Us 25000
Battery Starting and Charging

Multi US 25000 Battery Charger

May 27, 2020
CTEK’s Multi US 25000 Battery Charger is an 8-step charger for 12V batteries requiring rapid charging, ranging from RVs, boats, trucks, cars, and professional garages. The Multi...
Ctek Dcdc Onboard Charging Solution
Battery Starting and Charging

DC/DC Onboard Charging Solution

March 19, 2020
The CTEK DC/DC Onboard Charging Solution, featuring the D250SE and Smartpass 120S, provides a powerful 140A charging capability for a RV or commercial vehicle battery. The D250SE...
Smartpass 120 S, Side
Battery Starting and Charging

Smartpass 120S

Nov. 13, 2019
The CTEK Smartpass 120S is a fully automatic 120A power management system that distributes power between the starter battery, the service battery, and onboard equipment, without...
D250 Se, Side
Battery Starting and Charging


Nov. 13, 2019
The CTEK D250SE is designed to deliver 20A of power to charge, condition, and maintain any 12V service battery while on the move. It's compatible with smart alternators and its...

Articles & News

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Company/Association News

EnerSys, CTEK partner to introduce new line of battery chargers

Engineered with built-in temperature controls and a battery status indicator, the new series will efficiently charge a variety of ODYSSEY battery models as well as other brands...
Photo courtesy of Danielle Downing
Danielle and Richard Downing
Tool Distributor

Amping up the voltage

Sept. 5, 2023
With the surge in different vehicle batteries over the past few years, the tools and equipment used to service them have evolved. Find out what your customers need to perform ...
Photo courtesy of CTEK
Tool Reviews

Tool Review: CTEK CS FREE

June 6, 2023
Reviewed by John Baumgardt, owner and operator of Baumgardt's Auto Repair in Fillmore, Indiana.
Photo from CTEK
Industry News

CTEK appoints new president and CEO

May 15, 2023
Henrik Fagrenius has taken on the role of president and CEO of CTEK, succeeding Ola Carlsson.
2023 March Sneak Peek
Tool Distributor

Sneak Peek: March 2023

Some popular products from this month's sneak peek include the X-431 Torque 5, the Extended Back Probe Spoons, the LED Penlight, and more.
Cs Free
Tool Reviews

Tool Review: CTEK CS FREE

April 13, 2022
Reviewed by Brian Culotta, shop foreman and master technician at Dave’s Auto Care in Willoughby, Ohio.
Pro25 S
Tool Distributor

In Focus: CTEK PRO25S 25A Battery Charger and Power Supply, No. 40-328

March 4, 2021
Supports the battery and protects sensitive electronics during vehicle service and diagnostic work
Photo courtesy of CTEK
Digital battery testers allow shops to test every vehicle’s battery that comes in, meaning peace of mind for the customer and the potential of greater revenue for the shop.
Tool Distributor

The past, present, and future of battery maintenance

Feb. 4, 2021
As battery technology continues to evolve, shops need to be prepared and update their equipment as well.

Videos & Resources

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Product Demos


Oct. 18, 2022
In this video, CTEK shows how a technician can use its CS FREE four different ways.
Tanner Brandt Tool Review
Video Network

Tool Review: CTEK PRO25S 25A Battery Charger and Power Supply

Aug. 10, 2022
In this video, Tanner Brandt, owner of the Auto Diag Clinic in Greenville, S.C., reviews CTEK's PRO25S 25A Battery Charger and Power Supply.
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Video Network


Feb. 8, 2021
In this video, CTEK demonstrates how to use their PRO25S 25A Battery Charger and Power Supply unit.
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VIDEO: CTEK presents innovation in testing times

June 9, 2020
In this video, CTEK provides insight on ways to build customer loyalty while providing battery service that improves the shops' bottom line.
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Battery and Electrical

This is what happens if you don't look after your battery

April 25, 2014
An infographic with details on what happens to a battery without proper routine maintenance.

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All content from CTEK

D250 Se + Smart Pass 120 S W Connection Brackets, Top
Battery and Electrical

CTEK announces improved on-board charging solution

Nov. 13, 2019
The D250SE and Smartpass 120S, give technicians an on-board power solution – compatible with all 12V service batteries, including lithium (12V LiFePO4).
Ctek Mxs 5 0
Battery Starting and Charging

MXS 5.0 Smart Charger/Maintainer

May 23, 2018
The CTEK MXS 5.0 Smart Charger/Maintainer has an automatic temperature sensor to help ensure the duration and rate of charge is the exact amount needed. The MXS 5.0 smart charger...
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Industry News

CTEK enters electric vehicle charging market

May 7, 2018
CTEK acquires Swedish electric vehicle charging product developer Chargestorm.
Battery Sense App Battery 58b8264da0db4
Shop Management and Point of Sale

Battery Sense 2.0 Smartphone App

Feb. 27, 2017
The CTEK Battery Sense 2.0 Smartphone App is a Bluetooth enabled battery monitor designed to prevent unnecessary breakdowns and help maximize vehicle performance. Battery sense...
ctek mus 4 3 polar 54cbc45a670f8
Battery Starting and Charging

MUS 4.3 Polar, No. 56-958

Jan. 30, 2015
The CTEK MUS 4.3 Polar, No. 56-958, is a fully automatic "connect and forget" 12V charger with eight charging steps and it offers selectable 0.8A, and 4.3A programs. The Recond...
Matt Ingram, CTEK Ask the Expert
Ask the Expert and Tech Tips

Ask the Expert: What causes sulphation in a lead acid battery, and are there solutions to fix this?

April 25, 2014
More often than not, sulphation is caused by user neglect or in many cases, just not paying attention to your battery.
Matt Ingram, CTEK Ask the Expert
Ask the Expert and Tech Tips

Ask the Expert: What are some the advancements in modern battery chargers and maintainers?

March 5, 2014
Some new-generation battery chargers feature updated microprocessor technology for better battery service.
Matt Ingram, CTEK Ask the Expert
Ask the Expert and Tech Tips

Ask the Expert: What is the proper way to care for a battery in cold climates or freezing conditions?

Feb. 17, 2014
Batteries need special care in the cold because they will drastically lose cranking power when the mercury drops.
Ctek Mus 43 Testcharge Rgb 11297764
Battery Starting and Charging

MUS 4.3 Test and Charge battery charger

Jan. 21, 2014
The CTEK MUS 4.3 Test and Charge combines an advanced micro-processor controlled battery charger with a battery and alternator test function to test battery voltage, start power...
Battery and Electrical

CTEK Group acquires Inelco's battery charging business

Nov. 10, 2013
Acquisition to strengthen CTEK's battery charging business.
Ctek Battery Analyzer 10948299
Battery Service and Testing

Battery Analyzer

May 23, 2013
The CTEK Battery Analyzer tests the condition of 12V lead-acid batteries including wet, maintenance free, Ca/Ca, gel and AGM styles. The easy to use, hand-held device needs only...
The Garage

How to avoid a dead battery

Jan. 8, 2013
CTEK, a global battery maintenance and care brand, is highlighting the most common reasons for a vehicles battery to fail and reminding drivers how simple it can be to avoid these...
Ctekcomfortindicator 10130851
Product Guide

CTEK Comfort Indicator

Sept. 8, 2009
In the CTEK ADD-ON series, the Comfort Indicator is designed to indicate when the battery status decreases and the battery needs to be charged. It is a series of products that...
Multius7002batterycharger 10102891
Battery Service and Testing

MULTI US 7002 battery charger

Jan. 5, 2009
The CTEK MULTI US 7002 battery charger is well-suited for year-round use. The "supply" mode allows users to avoid losing complicated program settings while changing the battery...