My Nortrac 254 battery is 11 years old and still cranking, I took it out once to do some repairs man it's heavy, no American made is that heavy at that size. At 360 hours no major problems yet. Had a return hydraulic hose from the diverter valve go bad and no one local could match the fittings, Ronald from Ranch Hand Supply had the adapter to solve that problem now it's the standard Jic fitting.