Fisker Automotive Inc., a closely held startup carmaker led by auto designer Henrik Fisker, asked a bankruptcy judge to delay the auction of U.S. electric-car battery maker A123 Systems Inc., Bloomberg News reported on Friday. Fisker, based in Anaheim, Calif., also said on Friday that it would file an “emergency motion” challenging a debtor-in-possession loan, but did not provide details regarding the court motion. A123, the recipient of a $249 million federal grant, said it would sell its automotive-business assets to Milwaukee-based Johnson Controls Inc. in a deal valued at $125 million. The deal is subject to other potential offers in a bankruptcy auction. A123, based in Waltham, Mass., listed assets of $459.8 million and debt of $376 million as of Aug. 31 in chapter 11 documents.