SL/R230: Starter Battery issue
11-06-2018, 10:09 PM
#1
Member
Thread Starter
Starter Battery issue
How many members put battery maintainers on the R230 starter /consumer batteries when the car is not going to be used for a week or longer?
11-07-2018, 03:20 PM
#3
Super Member
Everyone uses trickle charger on the rear battery, as it does fast, 2-3 weeks tops.
Never heard of anyone charging the starter battery. I mean I had my car for over 3 years now and never ever the starter battery went dead on me. Obviously because is used for that sole purpose it means it can hold charge longer. I don't drive it that often - maybe 1-2 times a week in winter time, but still never had issues.
1 week is not that much of a deal for any of the 2 batteries, as long as you'll drive it for a while after that - more than 30 mins or so
Never heard of anyone charging the starter battery. I mean I had my car for over 3 years now and never ever the starter battery went dead on me. Obviously because is used for that sole purpose it means it can hold charge longer. I don't drive it that often - maybe 1-2 times a week in winter time, but still never had issues.
1 week is not that much of a deal for any of the 2 batteries, as long as you'll drive it for a while after that - more than 30 mins or so
11-08-2018, 05:36 PM
#4
Member
Join Date: Jan 2011
Location: Bartlett TN
Posts: 103
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2005 SL500
I maintain a trickle charger on my consumer battery - never on the starter battery. I drive my SL once a week, then sometimes go up to three wks without driving. AND, i recently installed a new AGM battery. I've heard
trickle chargers help batteries to last longer because they are constantly at full charge capacity...
trickle chargers help batteries to last longer because they are constantly at full charge capacity...
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ram_g (08-24-2021)
11-12-2018, 06:22 AM
#5
Junior Member
I store my SL550 in a remote, unheated, New England garage for up to 5 months every winter season. I use Flatstoppers for the tires and a CTEK smart charger for the convenience AGM battery. I have never trickle-charged or otherwise maintained the starter battery. Each Spring, I remove the car cover, disconnect the CTEK and start the car. The M-B starter battery (which is also an AGM) can hold it’s charge with no problem.
Last edited by CPDay; 11-12-2018 at 06:36 AM.
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Ejbrock (11-12-2018)
