W124 cabrio battery - what is largest size i can fit - HELP PLEASE

[The Boss]

hello folks.. its been a while..

hope all is well with everyone

so.. 124 cabrio advice please

my battery at present is dying..

its a 680cca 74ah

anyway, i want this changed and i want a bigger cca output..

whats the biggest battery available to fit in the cabrio battery space please?

my dimensions at present are 27cm wide x 19cm tall x 17cm deep..

look fwd to your replies

in mean time, 4 of my most recent pics

 

[optimusprime]

battery

Hi i have the 260 e m103 engine and i have just changed mine to 63 A/H it was a 62 A/H i removed. The workshop manual said that the 2.6 is - 62 A/H Dont know the size of your battery .What size engine do you have in your car?.

 

[The Boss]

Thanks Transformer.. mines a 320ce

but the roof takes up huge amounts of power, and at present i have 74aH and 680cca, but i would love a bigger battery in there within the same dimensions of 27 x 19 x 17

 

[Doodle]

but the roof takes up huge amounts of power,

Compared to that required to start the car, it's minimal. Any battery sufficient to do the former will have no problem with the latter.

 

[w124nut]

Although my cab is linked to a battery conditioner 24/7, when I take her out of the garage to drop the soft-top, I always have the engine running at about 1000 revs. This is not something that I have read but I feel it is being kind to my battery.

 

[WDB124066]

A Din 66 is the only battery here in NZL at least that I can get for the cabbies except the Genuine unit from MB. An Endurant [Bosch I think] Din 66 battery sold here is a little less grunty than the MB-Genuine unit, but I have found it appears to be more than sufficient most of the time. MB are pretty good pricewise Boss so if you want the largest capacity battery possibly this is an MB-Genuine unit.

Incidentally my five speed tranny slipped into top gear sooner and better with a new battery and the hood goes up and down quite a bit quicker, even with the engine running.

 

[bolide]

There is a bigger battery tray available but the big battery & tray are a very tight fit

I'd go to a battery shop with the measurements of the battery tray

Nick Froome

 

[grober]

You should be able to source a battery with a better COLD CRANKING FIGURE and AMP HOURS from VARTA.
e.g.
SILVER DYNAMIC AGM 570901076 CCA 760 70aH same dimensions as you have at present

Designed for stop/start applications should handle anything you can throw at it. price around £130

http://www.varta-automotive.com/en-...ufacturerNo=74&modellineNo=3907&modeltype=818

get the bigger tray and you can get either of the other two listed -- the blue dynamic will be cheaper!

 

[WDB124066]

This works fine for me Boss, so what you have [but new] should be even better. I have a feeling the MB-Genuine unit is 100 aH.

HELLA ENDURANT STARTMASTER BATTERY