Battery Disconnect Confusion
Okay, so I went out on Monday to take off on my first trip in my (new to me) 2018 Leprechaun, and the engine battery was dead. Had to call for a jump start. So I learned if my coach is just sitting ...
Forum Discussion
enblethen wrote:
The chassis battery is drained by the computer (ECM). There is nothing that can be done to stop this besides disconnecting the battery or installing small charger to it.
I'm not debating your post, I'm not a mechanic but I think its a very low draw. It seems to take a lot of time to do that. The knife blade is a good idea long term IMO .
My only reason for thinking that is that I park my 2018 Ford for 2 weeks multiple times during the winter, unplugged from shore power and my chassis battery has never dropped below 12.5v.
I have it on a digital volt meter which I activate each time to view a reading.
I bought one of those 1.5 watt solar dash panels because my truck has a 'hot' 12v outlet to accept the little charge that panel offers. It maintains my chassis battery at 12.6v for the same 2 weeks or more period . That battery went from 12.5v to 12.6v's using that little panel.
Just an uneducated guess but if that tiny panel keeps a chassis battery topped off I would think the draw while parked is very low unless there is another underlying problem somewhere.
In the OP's case, a bad alt diode would not show up as a blown fuse anywhere but would cause a significant battery draw while parked as it was explained to me. Being that the alt will work fine while driving to charge the battery its in the parked mode where the problem might be, someone would never know there was a problem until there battery was dead from sitting parked. Just something to think about to try to help him resolve his problem.
