WILMINGTON, Del. (AP) -- A Delaware bankruptcy judge has given final approval to the reorganization plan of failed battery maker A123 Systems Inc., which was the recipient of a $249 million Department of Energy grant.

Monday's court hearing resolved minor outstanding issues following the sale of most of the company's assets to the U.S. arm of Chinese auto parts conglomerate Wanxiang Group Corp. for nearly $257 million.

One issue was approval of a settlement involving the Waltham, Mass.-based company, now known as B456 Systems, its official creditors committee, and Milwaukee-based auto parts maker Johnson Controls Inc.

The committee had suggested that JCI improperly lobbied to torpedo the sale to Wanxiang after losing out on the bidding.

Johnson Controls has agreed to pay $200,000 to the bankruptcy estate, and the committee will drop any claims against JCI.