"…...One Duralast Platinum AGM battery in the common group 48 size failed our tough life test at just five weeks; another bit the dust after six weeks. To be sure the failures were't anomalies, we tested a few more Duralast Platinum AGM group 48 batteries. One of those failed in three weeks and another lasted 7 weeks. Based on these results, we will not make the latest group 48 Duralast AGM batteries recommended models in our Ratings.
Four Duralast Platinum AGM group 65 batteries also failed before reaching 12 weeks. That's longer than the group 48 models but still disappointing…………"
http://www.consumerreports.org/cro/news/...-test/index.htm
Four Duralast Platinum AGM group 65 batteries also failed before reaching 12 weeks. That's longer than the group 48 models but still disappointing…………"
http://www.consumerreports.org/cro/news/...-test/index.htm