Battery upsize

1971-1989: 280SL, 280SLC, 300SL, 350SL, 350SLC, 380SL, 380SLC, 420SL, 450SL, 450SLC, 450SLC 5.0, 500SL, 500SLC, 560SL
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Posts: 243
Joined: Sun 06 Aug, 2006 12:50 am
Model you own: w107
Location: Syd Vicious

Battery upsize

Post by Djenka018 » Fri 19 Oct, 2018 9:45 pm

Hello ladies/gentlemen,

trying to get a new battery and I'd like to fit the largest it will fit in the RHD design for iron block series (batt in the engine bay on the LHS)

Currently the car has 65Ah/550CCA in size W x H x L 175x175x278
These have now gone up to 72Ah/680CCA

If I go 315mm length I can get 80Ah/730CCA
If I go 190mm height in addition to above it goes to 90Ah/912CCA

Both up-sizes appear as possible...

Has anyone ever gone upsize ?
'80 450SLC 3-continental

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Tony From West Oz
OZBENZ moderator
Posts: 3241
Joined: Mon 20 Jun, 2005 9:04 pm
Model you own: w202
Location: Bedfordale WA

Re: Battery upsize

Post by Tony From West Oz » Fri 19 Oct, 2018 10:45 pm

The W107 model came with a Din66 (Aus delivery) or Din88 battery (USA or China delivery).
If the battery tray is larger than the physical battery size then it will fit. Just make sure that you get the DIN battery, not just any battery that will fit.
Watch for bonnet interference with battery terminals (Not likely with DIN batteries as they have the terminals in a cutout and the terminals do not protrude above the height of the battery case).
Life is a journey, with problems to solve, lessons to learn, but most of all, experiences to enjoy.

'83 W123 300D 325000km (Wife's car Josephine - sold).
'84 W123 300D replaced good OM617 912 with OM617 952 and enjoyed having good acceleration for the first time since first driving a 300D in 2002 - became engine and trans donor for 300CD Turbodiesel conversion. Now parted out.
'86 W124 300D sold (Wife's old car - sold )
'85 W123 300CD, 275 000km (Fatmobile) rebuilt turbodiesel from previous Fatmobile transplanted into 280CE (SOLD)
'99 W202 C250 Turbodiesel (my darling Wife's car - Sold)
'98 W202 C250 Turbodiesel (my car - Sold)
'06 Ssanyong Musso Crew Cab 2WD Ute (OM662 diesel and Auto Transmission)

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