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GLK-Class (X204) Produced 2008-2014

New OEM (Varta) GLK main battery test

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Old Mar 6, 2025 | 09:45 AM
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New OEM (Varta) GLK main battery test
New GLK battery that I bought two or three years ago but never installed. Looks dirty because it sat on my garage floor those years. These test readings are after charging 24 hours on an AGM charger.






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Old Mar 6, 2025 | 10:16 AM
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2013 glk 350
How did you take care of it for 2 years
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Old Mar 6, 2025 | 10:24 AM
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Originally Posted by Mmr1
How did you take care of it for 2 years
I charged it over night three times a year, or so. No trickle charging during those years.
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Old Mar 7, 2025 | 07:43 AM
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Originally Posted by MBKLUE
I charged it over night three times a year, or so. No trickle charging during those years.

Just found my receipt for the "new" battery... damn... I bought it THREE years ago (17 March 2022) so it has been sitting around all that time. Time flies but I guess I also like to see how long stuff lasts - like calder-cay.
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Old Mar 7, 2025 | 03:26 PM
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'17 GLS450, '14 GLK250, Grandpa's Roadster
Even older than that! the numbers stamped on the negative post indicate it was manufactured in the 24th week of 2021.
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Old Mar 7, 2025 | 03:30 PM
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Originally Posted by John CC
Even older than that! the numbers stamped on the negative post indicate it was manufactured in the 24th week of 2021.

now I wonder if it would have measured ~800 CCA if I had checked when I bought it.
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Old Mar 7, 2025 | 05:41 PM
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It goes to show that care and good feeding of your battery will result in a long and productive life.
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Old Mar 7, 2025 | 07:47 PM
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I wouldn't say it was very productive for the first 4 years...
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