My LX280 has the original battery since 2005 so I think it's time to look for a replacement. Does any one know if I can use a car battery like a 51R @ Auto Zone,Sears,Walmart etc...... The Deere battery doesn't look like anything special but I don't want to waste $100 on the wrong one. The 51R is 12 volts with 500 cca like the Deere but I have heard the tractor batteries need to have thicker plates like a deep cycle battery. Thanks