Parasitic Drain on House batteries

[Chateau_Nomad]

Mine did that until I stopped for gas one day and it wouldn't even turn over when trying to start afterward. Dead cell just like that.

Thus the jump box. I'm getting my money's worth... a hassle to jump though. But I only drive the truck locally, so when the battery gives up I'll just jump it and drive home. Then replace the battery at my leisure with an AGM.