S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

Adding a a Agm battery in trunk

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Old Nov 29, 2022 | 05:02 PM
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2010 s550
Adding a a Agm battery in trunk

Hi I got a 2010 Mercedes’ s550 4matic and I was wondering if I could add a Agm battery In the trunk for my subwoofers and mids? Is it gonna mess with any electronics or alternator or the computer or main battery? Anything helps thank you
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Old Nov 30, 2022 | 01:51 AM
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From: MBworld
bone stock E55 AMG
moved to W221 forum...
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Old Dec 1, 2022 | 01:14 PM
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S500
crazy amps can pull silly current and so adding one might help - or would capacitors do it?

I'd check with after market hifi kids - the earlier cars had a monster battery in the boot behind the right rear passenger seat - find it by removing the rear most vertical trim piece in the boot... there's either one there or a massive space...

fitted by grown ups and wired sensibly shouldn't cause any issue - if you need to add silly bass / volume levels, remember you'll be deaf by 40 and or have tinnitus* (which to some is so unpleasant they commit suicide) - before the madness of modern life - just living in a town vs living in the countryside meant by age 50 u will have half the hearing level nature intended - if you EVER hear ringing in your ears after being subjected to high noise levels even fora shirt time, its a sign of permanent hearing damage
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