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Registered
Join Date: Aug 2024
Posts: 6
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Battery Tender CTEK
I recently stared using a CTEK MXS 5.0 to maintain my Boxster battery during the winter. The car is outside in 20-30 degree weather with the CTEK in the fronk and the battery connected in the car. A few weeks ago I first hooked it up and waited for it to get to step 7 and then left it alone. Today I took a look and it was at step 8 and, while I was watching, it went to step 4! Is that normal?
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02-08-2025, 08:05 AM
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Registered
Join Date: Aug 2010
Location: Earth.............
Posts: 2,878
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Yes; Ctek maintainers will drop back down to a prescribed charging level automatically when the state of charge bleeds off, will charge the battery back to 100% and switch off, waiting for it to bleed off again.
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Accrochez-vous bien de vos rêves..........." |
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02-08-2025, 10:52 AM
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Join Date: Aug 2024
Posts: 6
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JFP Thanks, I just checked and its back to 7. I guess when I checked last time energizing the key fob and the fronk light was enough to cause it to reset.
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02-11-2025, 12:07 PM
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