2012 SL bought certified pre owned 2/12/16 26,600 miles with 10 bars. 9 bars on 2/15/16. 8 bars 27,345 miles on 3/5/16. New battery installed 5/24/16 at 29,168, 12 bars. New battery REinstalled 8/15/16 since the one installed on 5/24 was the wrong one!