W/S204 auxiliary boot battery , 12V std or AGM ?

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Gazwould

Gazwould

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2019-01-25 16.18.41.jpg
 
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Gazwould

Gazwould

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It charged up within minutes , so I guess not the reason why I've thankfully lost Stop Start which must be down to a weak main battery .

Main battery I've charged about 4 times and is always 11.7V to start with and only ever gets to 12V , so we'll past it's prime but has no problem starting .
 
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Gazwould

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Looks like I'll have to take it out for a negative terminal clean and grease .

Anything special need doing ?
 

AMGeed

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^ Nothing special should need doing after disconnecting that battery.
 

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