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Charging with a charger in garage

QuickRick

QuickRick

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Guys and Girls, We have a 2025 ST that we bought to leave in our Florida home garage. I’m getting a message off of FordPass that says “ battery saving mode” despite having a maintainer/ charger attached and **working. In fairness I can’t see the connection as we are 900 miles away. On the F150(we have one) Forum I was told that it matters which side of the cable you apply the charger. Do you think that this means the vehicle does not see that charger? Kindly chime in! QuickRick ** at least I believe
 

Jeppo

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I put a 1amp maintainer on about once a week. I’ve noticed FordPass doesn’t recognize the battery becoming fully charged until I next start the vehicle.
 

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Cdubya

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Only explanation is that the battery maintainer is not attached or is not working. There should be no reason why you should get that message with a working battery trickle charger.
 

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Caster

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I believe if the vehicle is not started over a certain period of time, the vehicle automatically goes into a deep sleep mode (AKA battery saving mode). I do believe this is regardless of having a maintainer on it or not.
 

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J-Dub

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QuickRick said:
Guys and Girls, We have a 2025 ST that we bought to leave in our Florida home garage. I’m getting a message off of FordPass that says “ battery saving mode” despite having a maintainer/ charger attached and **working. In fairness I can’t see the connection as we are 900 miles away. On the F150(we have one) Forum I was told that it matters which side of the cable you apply the charger. Do you think that this means the vehicle does not see that charger? Kindly chime in! QuickRick ** at least I believe
Click to expand...
YES SIR U must put Negative charging lead(clamp) before BMS sensor. Not directly to Negative battery terminal , or ur right , computer is not even seeing tender/trickle charger ! There are a few good vids on YouTube about this exact scenario. Best of Luck
 

OP
QuickRick

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J-Dub

I think thats it. Cool would be if I could remote start but so far I'm failing doing that.

QuickRick
 

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KANSAS

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Regardless of charging status, the car will go into battery saving mode after exactly two weeks of non-use. It will send a message when it does that. After that it can no longer send/receive messages or commands because the modem shuts down. That mode will continue until the car is restarted.
 

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QuickRick

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That does make perfect sense as a similar thing happened to our parked F150. Knowing this I should keep remotely started it each week parked, huh?

Thanks,
QuickRick
 

M

Mustang5L5

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QuickRick said:
That does make perfect sense as a similar thing happened to our parked F150. Knowing this I should keep remotely started it each week parked, huh?

Thanks,
QuickRick
Click to expand...
While that may help with the battery situation, it's not exactly healthy to start and idle a car that isnt going to be driven. Idling like that creates condensation that will collect in the exhaust (prematurely rusting it), or in the engine crankcase and contaminate the oil.

Unless you can take the vehicle for a ride and get everything hot and toasty, it's best to not start and idle it now and then.

For a vehicle i'm parking for the winter and not going to have access to - i pull the battery. PITA I know, but it makes it easier in terms of hooking the maintainers up and not interfering with electronics like this.
 

Chairborne Ranger

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This is a timely post; I just got the Pass App notification that the OP mentioned above. I'm retired so I don't drive a lot and the vehicle can easily sit for 3+ weeks. I've never owned a car in 51 years of driving that demanded to be driven but I guess none of the previous vehicles had so many needy electronic features draining the battery either.
 

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QuickRick

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Mustang5L5 said:
While that may help with the battery situation, it's not exactly healthy to start and idle a car that isnt going to be driven. Idling like that creates condensation that will collect in the exhaust (prematurely rusting it), or in the engine crankcase and contaminate the oil.

Unless you can take the vehicle for a ride and get everything hot and toasty, it's best to not start and idle it now and then.

For a vehicle i'm parking for the winter and not going to have access to - i pull the battery. PITA I know, but it makes it easier in terms of hooking the maintainers up and not interfering with electronics like this.
Click to expand...
Agreed,
Not good to not warm a car fully, plus I had other issues with it like exhaust condensation on the floor and carbon monoxide because all the doors are closed etc.
So about removing the battery, how would that help? I don’t mind doing it if that’s a fix.

QuickRick
 

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Mustang5L5

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QuickRick said:
Agreed,
So about removing the battery, how would that help? I don’t mind doing it if that’s a fix.

QuickRick
Click to expand...
You don't necessarily need to remove the battery. You could just disconnect the battery and put it on the tender. However I must say I've never done this on my ST however as it's my every day car, so unsure of any negative consequences of this.

I only mention pulling the battery because when I store my Mustangs off-site away from my home, I prefer to take the battery with me and charge them in my garage. Easier for me to keep tabs on and i typically don't leave it on the trickle charger 24/7. I had an issue with overcharging once.

EDIT: Also, someone correct me if im wrong here but the ST uses an AGM battery right? These tend to be a little sensitive with regards to overcharging on a trickle charger no?
 

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Dale5403

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Mustang5L5 said:
EDIT: Also, someone correct me if im wrong here but the ST uses an AGM battery right? These tend to be a little sensitive with regards to overcharging on a trickle charger no?
Click to expand...

You are correct. They do have AGM batteries.
 

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