Good day, I charge my car battery in my vehicle in built-in condition by means of my MXS 5,0. I am unsure if I have understood the operating instructions correctly and do this with the charging time correctly: I charge in the program AUTO until the level 7 green diode in battery symbol form lights. This can be achieved once after 5 hours, but today only after 2 hours after connecting the charging trench. The battery is today apparently already quickly full again, anyway had there The charging start was reached at 12.19 volts, charging end (level 7) was reached at measured 12.98 volts at the battery poles after disconnecting the charger. Levels 1 and 2 are processed immediately when switching on within a few seconds, level 3 takes less than one minute and stage 4 then, as today, just 2 hours or Sunday 5 hours. Level 5 has never been observed before, because too short and stage 7 lights up until i I will not leave the charger connected for hours. After the manual of the charger I read from it that the battery has reached 100% of the reachable capacity after the end of stage 4 and is then already fully charged. So the battery really should be fully charged! I wonder that after reaching level 7 when the charging trench is still connected a battery voltage of 13,5 volts, na I know that a higher voltage can be measured directly after the charging end.Two days later, however, I can only measure 12,3 or 12,19 volts. Does the actual charging only start when I reach level 7 and that I have to have the charger connected for a few hours? I understand the instructions so that level 7 is a charge maintenance level. Or deu am I wrong about the operating instructions?