Varta Blue vs Silver

[rn55one]

OK, So I have narrowed it down to 2 batteries for my 750iL:

Both are the same size for my iL:
Case Size: T7/LBN4
Weight: 19 kg
Length: 315 mm
Width: 175 mm
Height: 175 mm


1.
Varta Blue Dynamic (F17) 580 406 074
Voltage: 12
Capacity: 85
Cold Cranking Amps: 800 A
Price: £67.90
http://www.ebay.co.uk/itm/CAR-BATTER...8AAOSwZVhWTGaZ

2.
Silver Dynamic (F18) 585 200 080
Voltage: 12
Capacity: 80
Cold Cranking Amps: 740 A
Price: £77.50
http://www.ebay.co.uk/itm/Varta-F18-...25.m3641.l6368

Does anyone recommend one over the other?
The difference is only £10.

- - - Updated - - -

Gone for Higher cranking version

[XAlt]

More CCA the better, I'd take the first one.

[whiskychaser]

I'd go for the first one too. As an alternative, maybe Exide's EA 852? £78.84 online from ECP but you can probably get a discount code from one of the UK forums

[shogun]

I just ordered here in Japan a AC DELCO LBN5 battery. Not sure if they are sold also in the U.S. or Europe, although ACDELCO belongs to GM.
Size is L=355x W=175x H=175mm, so it fits with a height of 175mm under the single electric rear seat of the 750iL.
90 Ah, CCA: EN 760, SAE 810.
Price here is shipped abt. $ 130

[dimonlexx]

I recommend Varta Silver Dynamic, but 85Ah - it has 175mm height and has silver technology, that allows to get more Amps at lower temperature. Moreover, self-discharge is lower.
Also, you can buy Bosch S5 85Ah - it the same battery and producing with Varta on single plant. Difference in price and in labels.
I've bought Bosch S5 as it had lower price at the moment. 4 years have no any problems with it even at -25/30 C

[Ratinoff]

Is anyone buying Varta batteries in the United States? If so, where?

[Ratinoff]

I called Mesa Performance Parts (http://mesaperformance.com/fonelist.html) in Costa Mesa, CA and they said they sell Varta batteries. I asked them to provide me the model number and cost for a battery for my 1998 E36 M3 sedan, but the own didn't call back to provide me this info after he said he would need to look it up.