The CTEK MUS 4.3 Test&Charge Is the Ultimate Battery and Alternator Tool

A Charger and Tester in One Tool


CTEK MUS 4.3 Test&Charge


CTEK’s MUS 4.3 Test&Charge allows you to not only charge your vehicle’s battery but test it and the alternator, too. The advanced micro-processor-controlled battery charger works on batteries from 1.2 Ah to 110 Ah. It has a patented automatic desulphation program and a unique reconditioning function to restore batteries that are completely discharged and stratified.

The charger is also great for long-term maintenance with its float/pulse mode, while the recond and “snowflake” modes can work together or individually in both 0.8 A and 4.3 A programs. The MUS 4.3 Test&Charge also features three easy-to-use programs for battery voltage, start power, and alternator performance testing.

It’s easy, safe to use, and protects vehicle electronics, and is also spark-free, protected from reverse polarity, and short-circuit-proof. The MUS 4.3 Test&Charge comes with a five-year warranty.


Watch a Review of the CTEK MUS 4.3 Test&Charge


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CTEK Power





(330) 963-0981


CTEK Power Inc. designs and develops a unique series of high-tech battery chargers and special solutions for all types of lead-acid batteries for both private and professional use.

The cornerstone in CTEK’s successful business concept that allows the development of a new category of battery charger is the extensive knowledge of batteries and electronics. These new battery chargers satisfy not only today’s high demands on battery care, but also take the increasing needs of the growing group of new users into consideration.

Safety, simplicity and flexibility are key words and requirements that apply to all the products and solutions currently developed and sold by CTEK. Since our initiation, close to three million battery chargers have been sold in 60 countries throughout the world. CTEK is also a reliable OEM supplier to many of the world’s most prestigious car and motorcycle manufacturers.