Z445 Battery Trouble Shooting Help

[ron1969]

I have 2001 Z445 with 750 hours and my battery has died. Replaced battery due to a dead cell. New battery ran for 2 days. When I went to start my mower all it does is click. New battery has 75% of power. I can jump start the mower and run/mow. When I turn it off I have to jump it to restart. Any recommendations on how to further trouble shoot or fix my problem. All fuses, cables and connections checked and seem to be good to go.

 

[Blaneypark]

Have a test done on the new battery. I have bought a new one and have it go bad in less than a week. The positive post melted off it. Took it back, got a new one and no trouble. They don't make batterys like they one did.