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.

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

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.