After changing our routine and not using our Honda Odyssey as much I started having a dead battery. The battery was a few years old so I got a new one. I charged it on my battery tender before installing. Once the van sat for a few weeks the same thing-totally dead. I measured the parasitic battery drain at 80-100ma. That's a 10th of an amp all the time. Did a web search and it's all over the place on this. I pulled fuses and found the culprit but it feeds several circuits. I have a post on the Honda forum I subscribe to. So what is acceptable? Do I have a problem or a bad battery? I don't want to spend a huge amount of time on this. I thought of swapping in the battery from my pickup and seeing if it still drains the battery.

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Tony H
W111 280SE 3.5 Coupe
Manual transmission

Past cars:
Porsche 914 2.0
'64 Jaguar XKE Roadster
'57 Oval Window VW
'71 Toyota Hilux Pickup Truck-Dad bought new
'73 Toyota Celica GT