SL55/63/65/R230 AMG: Do I need to trickle?
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Joined: Mar 2005
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Do I need to trickle?
Looks like I'm going to be driving my SL55 mostly on weekends - maybe take it to work once or twice during the week...maybe.
Do I need to trickle charge my battery - if so just the one battery?
Do I need to trickle charge my battery - if so just the one battery?
MBWorld Fanatic!
Joined: Oct 2007
Posts: 1,564
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From: SoCal
98 Brilliant Silver E320 Wagon
I don't think there will be any issue with the schedule you suggest. Leaving it sit for more than 2 or 3 weeks is where a float charger is a good idea.
Of course, this assumes you don't have any parasitic drain on the battery. In a car that's being driven daily this condition may not be noticed since one overnight discharge is not enough to show symptoms. But it's not common so I wouldn't worry. If you worry easily, then pick up a float charger at Harbor Freight for about $12 or the one at the dealer for about $
Of course, this assumes you don't have any parasitic drain on the battery. In a car that's being driven daily this condition may not be noticed since one overnight discharge is not enough to show symptoms. But it's not common so I wouldn't worry. If you worry easily, then pick up a float charger at Harbor Freight for about $12 or the one at the dealer for about $
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Joined: Feb 2008
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From: Bruges, Belgiummmmmm!(chocolates)
2003 sl 55 amg, 2010 RRS TDV8
If you drive it on a regular base, say once a week, you should not have any problem at all. And by 'driving' I mean driving to give the battery time to get fully charged. If on occasion you then leave it for 2 or 3 weeks non-driven, it will start without a problem, just the first 5 minutes you will see and have 'ELECTRIC CONSUMERS OFF'. Just do what the car is build for : drive it ! 
