Are our main and auxiliary batteries AGM Flat Plate or Spiral? 2018 P400e AB LWB

Both OEM batteries are AGM on my 2016

He's asking which type, I thought the spiral ones were only made by Optima...!

Standard flat plate are fine for a fatty....  Pete
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2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

Soz I thought op was a asking about a choice of three- I didn’t know there were different types of AGM batteries 😝

Ahem! Decorum, dear boy, decorum!

A more appropriate emoji for this Gentlemens’ forum would be “ ”

Pete was only trying to explain, not criticise, I feel?

I too am ignorant of what a “Spiral Plate AGM battery” is, perhaps someone can enlighten us? “If it ain’t broke, don’t fix it” -where’s the fun in that?

Viggy, was just clearing up what I thought the OP meant....

I don't know much about it apart from spiral wrapped has lots of advantages over flat plate but costs a shed load more and isn't needed on a fatty.

IIRC spiral wound is one continuous lead plate wound around inside the battery, this uses Unicorns and fairy dust to make more oooomph....  Pete
__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

I’ll have to stop using emojis, that emoji was me laughing at myself for not knowing but it was not interpreted that way, but anyway that’s what I was doing