I just replaced my Walmart Maxx EverStart with a new one yesterday. I ran it for 5 years and they still gave me $39.00 credit on the new one. I am not sure there was anything wrong with the old one, I battery was dead when I got ready to leave T&T last Thursday so I thought I would go ahead and get a new one. I think my stock alternator just wiil not get the job done since I upgraded to a electric fuel pump.