Great article. I had a MXS 5.0 model that gives me satisfaction, I use it to maintain in the battery of a car collection that I do not use every day. Two star less because the "TEST AND CHARGE" does not give me satisfaction. I loaded a charged battery, I took the test it says "OK", I put my battery on my vehicle can not be started, it went from 3V to 12V immediately the first shot starter. The test therefore indicates that the battery is fully charged 12V but does not say what has no load-holding capacity, so this test has no value. For the rest, equivalent single charger u MXS 5.0 (without testing) which is 5 stars.