Big problems!!!

[1955moose]

It is a group 94 reverse terminal. That's is a new #. Sad a 1 1/2 year old battery took a dirt nap. Let us know if all comes back.

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[JExpedition07]

I’m sure someone has Group 94R batteries in stock (GM dealership up the road), would just say AC-DELCO lol. Not really special, plenty of autos use them. Might as well wait and get the free ford one installed right? I just don’t know why the dealer would have to order that battery.

 

[1955moose]

I guess the parts manager didn't think he'd need one in only a year. It's an overnight Depot item from Ford, so why stock it. Later this year, they'll probably keep 5 or more in stock, as the vehicles age.

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[edizzle]

Group 94 or H7 AGM (activated glass mat)

 

[scottdm]

A “Special Battery”? lol

4th gen Expeditions have an AGM (Absorbed Glass Mat) battery, so they may not stock them yet.

 

[1955moose]

We used to use those on my fleet of Harley's. They usually are pretty reliable, but I changed out a few over the five years I ran the service. Batteries are funny items. 2 made at the same day, same time, one goes all the way to 7-8 years, the other goes bad at 2 years. Biggest problem is each customer's different. One just drives his/her vehicle, never sits parked with entertainment going, while the other sits for hours playing the Stereo, or DVD player. Draining a non deep cycle battery, is hard on the plates, due to the discharge/recharge. If theirs any malfunctions in any of the many electrical items these days, it just puts more of a strain on the battery. If vehicles came with 2 batteries, and a battery isolator, one deep cycle for entertainment, one lead acid car type for the other duties, starting, charging, etc, you'd rarely have the main battery go bad before 5 years. With the A S.S. starting system going on all the time, battery replacement is going to be a common thing. Warranty on new car batteries is going to be high, unless theirs something magical in the new AGM group 94's, I think 2-3 years is about all you could expect.

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[edizzle]

Loose ground wire in the passenger floor kick panel area. There is a removable panel. Underneath there is a ground connection of some sort with a bolt or screw that was loose. My wife did all the leg work. They went ahead and gave us the new battery too. Small dealership in North Georgia, Duvall Ford. Good guys, helpful, courteous.

 

[99WhiteC5Coupe]

Extremely curious to know if the battery replacement actually solves all of those issues.

If it is the battery, does that mean all of that stuff is simply related to low voltage? And, if so, why would any problems happen while the vehicle is running?

A battery with a dead or defective cell can cause all kinds of electrical issues, even with the engine running.

 

[1955moose]

These and most newer vehicles have so many items depending on a sound battery, and charging system. A fully charged 12 volt battery has a static voltage of 12.6 volts. The charging rate will vary depending on the load, but average is 13.8 volts on the low end, but normal is around 14.2-14.4 volts. When a battery has even one cell that's not pulling it's weight at 2.1 volts each, the battery can drop below 11 volts. The charging system, and computer see a low voltage, and try to compensate. Unfortunately most if not all the components are designed to work properly at that 12.6 to 14.3 voltage. I had my alternator go out on my old 2000 Expedition about 3 months ago. The CD player started skipping, then stopped playing. Luckily, it made it home, barely. The engine started running bad the last block or so. The battery was down to 10.6 when I pulled into driveway. We've all here heard of many forum members that had weird electrical issues, most were either bad grounds, bad battery, or in older vehicles, bad battery cables.

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[mossback]

Understood, thanks guys.

dizzle, glad you got it figured out.

 

[JohnT]

Don't forget modern variable alternators can be turned off or down at highway speeds to increase mpg so it's not uncommon to see Voltage dropping down to 12.3 while barreling down the highway. At some point the computer hits a threshold and turns the charging back on and you will see the voltage creep back up.