R230 Consumer Battery

nicholas15

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s class w221 - 2012 350 Bluetec, SL500 r230 2003
Following advise here, I having invested in a CTEK charger for use on 2003 SL500.
My question now, is can I charge the consumer battery via the cigarette lighter or only via the terminals on the battery in the boot?
I presume it is an AGM battery?
 

ajlsl600

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clk3202001,sl6002003 with everything regrettably sold ,A class 170cdi auto. NG/TF1800 ML250
i just connected up the plug end cables to the batt and leave the lead poking out into the boot,i find that once conected its still no issue to close the boot. agm it tis. i also keep a ctek on the front batt ,tho i rotate that on SL,CLK dont know about fag lighter as input, someone surely will, seems best to me to involve going thru as little as possible to charge consumer batt .rules out ANY dramas
 

LostKiwi

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'93 500SL-32, '01 W210 Estate E240 (RIP), 02 R230 SL500, 04 Smart Roadster Coupe, 11 R350CDi
Only via the battery terminals.
Easiest way is to put a fixed fly lead on the battery and use that to connect the battery. The CTEK usually comes with a flylead with eyelets that will do the job. Yes it's an AGM battery.
 

McDonald

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SL500 2004
While my car is resting I use a Ctec battery conditioner on the consumer battery, but not on the starter battery. Am I just lucky that the car starts immediately every time?
 

LostKiwi

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'93 500SL-32, '01 W210 Estate E240 (RIP), 02 R230 SL500, 04 Smart Roadster Coupe, 11 R350CDi
While my car is resting I use a Ctec battery conditioner on the consumer battery, but not on the starter battery. Am I just lucky that the car starts immediately every time?
Never had to charge the starter battery on ours. The consumer battery goes flat for fun though....
 

ajlsl600

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clk3202001,sl6002003 with everything regrettably sold ,A class 170cdi auto. NG/TF1800 ML250
While my car is resting I use a Ctec battery conditioner on the consumer battery, but not on the starter battery. Am I just lucky that the car starts immediately every time?


my start batt went dead a few yr ago, it was 10. since no issue i just prefer to rotate the ctek now and then. mine spends 4 /5 months in its cot.
 

Denis O

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R230
I have a fly lead attached to both starter and consumer batteries in my 350. Most of the time the C-Tek is on the consumer but every now and again I give the starter battery a quick shot. It certainly won't do it any harm even if it doesn't need it.
 
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nicholas15

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s class w221 - 2012 350 Bluetec, SL500 r230 2003
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Only via the battery terminals.
Easiest way is to put a fixed fly lead on the battery and use that to connect the battery. The CTEK usually comes with a flylead with eyelets that will do the job. Yes it's an AGM battery.
Thanks. The consumer battery has eyelets attached from the previous owner so will use those.Thought I ought to do something because I will be in New Zealand over next couple of months

Also thanks to others for their comments.
 

LostKiwi

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'93 500SL-32, '01 W210 Estate E240 (RIP), 02 R230 SL500, 04 Smart Roadster Coupe, 11 R350CDi
Thanks. The consumer battery has eyelets attached from the previous owner so will use those.Thought I ought to do something because I will be in New Zealand over next couple of months

Also thanks to others for their comments.
Excellent! Which part of the country are you going to?
 
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nicholas15

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s class w221 - 2012 350 Bluetec, SL500 r230 2003
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Excellent! Which part of the country are you going to?
Typical tourist; fly into Auckland, hire a car, then Paihai, Stratford, (Forgotten Highway), Cambridge, Rotorua, Wellington, then bus for South Island, Christchurch, Trans Alpine, Fran Josef, Queenstown, Christchurch, Auckland
Guess much of that is familiar to you!
 

00slk

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2002 SL55 AMG, 2005 E320 CDi, 2014 SLK250 CDi, 2003 SLK200
Yep, been to all those places ;)
We just leave our car batteries connected when we go overseas, longest time left was 3 months and haven't had any flat battery issues. Hope I haven't said anything, I don't want any bad omens :eek:
 

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