A lot of batterieswont"go flat after a month"
If you are running without c-stand, I run the battery overflow thru the right hand clamp for the c-stand, it stays in there. When I change batteries, I just undo the overflow hose, and reuse it.
I tell people repeatedly not to use 16 tooth sprockets for hard use, they did not help the chain problem on the first 44, 000 fours..