I've done a fair amount of research on this topic, and concluded that batteries are pretty straightforward; as long as the amperage rating is at or higher than the rating of the OE battery, and the new battery fits in the car properly, you're all set.

For instance, I replaced my OE 650 (?) amp battery with an 1,100 amp battery suited for a diesel...all I had to do was to replace the battery tray. I like having the reserve power; even after leaving all of the rear cargo lights on all night in cold weather, tha car still fired like it was on a fresh charge.

It is a fallacy that too strong a battery can damage a properly operating electrical system; your car only uses the power it needs.

Hope this helps!

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Best regards, Michael
'92 500E
'88 300TE