Who makes Mercedes batteries?

Answer 1

Odds are, there's more than one company that makes/has made batteries for Mercedes.

It usually goes like this:

• Merc plans to build x cars next year
• for those cars they need x + some spare batteries
• the batteries need to have a size this-and-that, and electrical capacity so-and-so
• Merc wants y number of batteries delivered every other day
• Merc asks several different battery manufacturers if they can deliver batteries according to above, and what they would charge for it
• the winning company, usually the lowest bidder, gets to deliver batteries for the length of the contract.
• when the contract is about to run out, the whole process is repeated again, but maybe this time another another manufacturer offers a sweeter deal, and gets the job.