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      11-10-2021, 08:19 PM   #5
Doctor_X
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Drives: 2015 M5 CP - 2022 M5 CS
Join Date: Sep 2016
Location: Phoenix

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2015 BMW M5 CP  [0.00]
2022 BMW M5 CS  [0.00]
Batteries require maintenance. If you don’t do it, you’ll ruin the battery over time. It’s as simple as that. These cars have power draws that can irreversibly affect the memory.

I routinely add a CTeK maintenance charger on mine - even if it’s just sitting for the week.
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M5Rick60060.50
BMWM5NYC496.00