According to Autoblog, what happens is that the first Spark EV  battery packs were made by a company that went bust: A123 Systems. When  that happened, GM put another supplier to take care of them. It was LG  Chem, which we now call LG Energy Solution. 
 
 GM told Autoblog  that the stock of battery packs made by A123 Systems had run out,  making the company close that part number. The automaker suspects that  this was what led dealers to tell EV-Resource  that there would be no more battery packs for the Spark EV. The problem  is that the battery pack made by LGES has a different part number which  is still available for order – only not right now.
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