Auxiliary battery charging

Gazwould

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Worth doing ?

Lift off cover in boot and attach to terminals and use what charger setting ?
 

OneForTheRoad

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uk.
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2015 w204 c class amg sport premium +65 ford kuga 2.0 cdi zetec awd..
main battery = i used an intelligent charger set to agm , or a normal charger set to 12 volts low .
 
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Gazwould

Gazwould

MB Enthusiast
Joined
Sep 29, 2018
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S204 C250 CDI AMG Sport
Yes got 12V smart charger with AGM mode on main now.

What about auxiliary ?
 

Gbrowncls55

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Sep 11, 2016
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Surrey
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CLS55 AMG 06, SL350 06, 996 cab, all current. Gone : E500 W211, 2x M5s and far,far too many 911s
My aux battery has just been changed as it started showing a red battery on the dash. When I took it out it was the original i.e 13 years old! so they last ok as they don't get used and are charged by the alternator anyway. At least that's the case on my w219 cls.
 

OneForTheRoad

MB Enthusiast
Joined
Apr 20, 2015
Messages
2,425
Location
uk.
Car
2015 w204 c class amg sport premium +65 ford kuga 2.0 cdi zetec awd..
Yes got 12V smart charger with AGM mode on main now.

What about auxiliary ?

use the smart charger on it .
 

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