too many people today are trying to make their first Mill in a short time. they also want to be able to afford healthcare. that takes a lot of money today. what I do is go to a place here in Tampa Florida area that rebuild or sells Blem Batteries I pay $$38 buck s for a battery that is guaranteed for 2 yrs. they test the charging & starting system and install the battery. or you can bring your core and pick up a battery. this is all they do. I used to work for a Battery company that does this, I was the auto Electrician there,rebuilt starters and alternators. they dump the acid out in plastic barrels,wash the battery, add new acid to the barrel until it reads 12.75 on the hydrometer. then pours it back into the battery and puts it on a trickle charge with a special industrial charger for 3 days, this breaks any Sulfation loose. they load test the batteries then put them on the shelf. when I get one it usually last me 2.5 to 3 yrs. they also sell brand new batterys for $60 bucks,these last about 4 yrs. theres only like 3 batterie company's in the USA,one of them is interstate. . these companys make the batteries for all distributors and their put their labels on them.