FOMOCO AGM Battery

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pnwobrigade

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Would you considering adopting another before you decide to part ways with the R? I'm generally pretty respectable and low maintenance. But yes, mine has AGM too although I've heard hit or miss things with FoMoCo battery reliability lately (supplier related). Seems the 23+ have been better, lots of battery related issues on 21-22.
 
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HAP

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For sure these trucks have so many things drawing power with the engine off. I try to turn off the auto headlamps and climate system whenever I'm trying to learn about the features.

R,
HAP
 

JCT

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The AGM battery in my ‘19 is physically identical (with the exception of logos) to the one that I swapped out of my ‘18 GLC 63 AMG. Apparently it is a popular battery.
 

EricM

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They went to AGMs when the vehicle got the auto start/stop systems.

$250+ for a new AGM battery.
 
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