tractor voltage

[Boney 0]

I do not believe my battery is recharging. I put a volt meter on the battery while it was running and got 12.75. I tried to get readings off of the generator but was not able to. How do I determine if the generator can be fixed or should be replaced? Thnx for any help Herm

[RayS 79]

[Boney 0]

Rays thnx you very much for the helpfull info :)