We've tested and reviewed products since 1936. Read CR's review of the DieHard Platinum AGM 51R car battery to find out if it's worth it.

We've tested and reviewed products since 1936. Read CR's review of the DieHard Platinum AGM H8 car battery to find out if it's worth it.

Enersys signs multi-yr contract to provide Sears Holdings with DieHard platinum batteries By Reuters August 9, 20072:10 PM PDTUpdated February 27, 2007 ...