CTEK comes out on top in GTÜ test

We are delighted to announce that the CTEK MXS 5.0 has been identified as the top performing charger in a recent independent battery comparison test. Undertaken by GTÜ in Germany, the test compared 8 different chargers, involving 25 different test stages.

Charger functionality, quality, visual test and performance, as well as cost formed the basis for the 25 different test stages – each test stage involved chargers being awarded a pass or fail mark.


Charge quality

Each charger was evaluated to ascertain the quality of charging and charge retention. GTÜ awarded a pass mark to chargers that delivered a safe charge and included a voltage adjustment phase to achieve a 100% charge. GTÜ also needed to see a maintenance mode that constantly retained an optimal charge to award that all important pass mark – this was only achieved by CTEK MXS 5.0 and JMP 4000.

Battery maintenance

For long-term operation such as the winter charging of batteries in vintage cars, the devices identified as most suitable (and therefore awarded a pass mark) were those by CTEK and JMP, but also the Cartrend MP 3800 mastered this test. Chargers not awarded the pass mark failed for a number of reasons including inability to 100% maintain the battery in cold weather conditions and unsafe leads or connections.

Charger versatility

The CTEK MXS 5.0 was recognised for its versatility of charging and its ability to repair, revive, charge, condition and maintain all types of vehicle battery including wet/flooded, calcium, gel, and the latest Start-Stop AGM and EFB technology.

Battery revival

Of the top devices tested, it was only CTEK and one other charger that succeeded in restoring deeply discharged batteries with a residual voltage of 3V.

It is clear to see that the testing involved in the GTÜ independent test reflects the growing abilities of today’s chargers and so we are absolutely delighted that the CTEK MXS 5.0 has come out on top!