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There is one thing I don't quite understand, though, about how a larger capacity battery helps with the "Deep Sleep" issue. I have about 5K miles over 18months, and do mostly short suburban trips. If I don't get enough ICE time to charge the smaller, stock 2020 battery sufficiently, how does a larger capacity battery solve that problem?
The larger capacity of the AGM battery would certainly help especially with the type of mileage and distance you are currently doing. To my knowledge everyone here that has switched to the AGM battery has advised that this solved the Deep Sleep and other issues with this model Escape.
The dealer has only done a bandaid fix in my view but in the meantime perhaps you can attach a trickle charger to your new replacement 'small' battery to avoid the cost of a new AGM for the moment which apparently will fit in your car regardless of what the dealer says as others here have done this.
Perhaps you could take your car to a battery specialist down the track to fit the proper AGM unit as I am sure they can find a way to make it fit as others obviously have. 馃槈
 

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The larger capacity of the AGM battery would certainly help especially with the type of mileage and distance you are currently doing. To my knowledge everyone here that has switched to the AGM battery has advised that this solved the Deep Sleep and other issues with this model Escape.
The dealer has only done a bandaid fix in my view but in the meantime perhaps you can attach a trickle charger to your new replacement 'small' battery to avoid the cost of a new AGM for the moment which apparently will fit in your car regardless of what the dealer says as others here have done this.
Perhaps you could take your car to a battery specialist down the track to fit the proper AGM unit as I am sure they can find a way to make it fit as others obviously have. 馃槈
You are preaching to the choir! I鈥檝e been following this thread for months and I can see that others have solved their problem by upgrading to a larger capacity battery, and I was ready to have that done, but my stubborn dealer insists that the battery won鈥檛 fit and they won鈥檛 try.

I could have an independent shop I trust put in the battery, but I don鈥檛 think that they can reset the BCM to reflect the change to the larger capacity, AGM battery. I don鈥檛 know to solve that problem.
 

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You are preaching to the choir! I鈥檝e been following this thread for months and I can see that others have solved their problem by upgrading to a larger capacity battery, and I was ready to have that done, but my stubborn dealer insists that the battery won鈥檛 fit and they won鈥檛 try.

I could have an independent shop I trust put in the battery, but I don鈥檛 think that they can reset the BCM to reflect the change to the larger capacity, AGM battery. I don鈥檛 know to solve that problem.
The battery will fit, they just don't want to accept fault for the issue. Just tell them I want this battery installed and the BMS updated to reflect AGM. If they fight you on it, start talking about it being a lemon. The fix IS NOT to just drive it more often, that's a bs excuse. They tried that with me and I had enough of it. So far ever since we've had the battery swapped out that they swore wouldn't work in the car, we haven't had deep sleep issues. AGM charges way better too.
 

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The battery will fit, they just don't want to accept fault for the issue. Just tell them I want this battery installed and the BMS updated to reflect AGM. If they fight you on it, start talking about it being a lemon. The fix IS NOT to just drive it more often, that's a bs excuse. They tried that with me and I had enough of it. So far ever since we've had the battery swapped out that they swore wouldn't work in the car, we haven't had deep sleep issues. AGM charges way better too.
Thanks. I鈥檒l wait until the new OEM battery runs down enough so that the symptoms appear again, and I鈥檒l take your advice on mentioning the lemon law. I should probably look into what the WA lemon law requires before the threat is credible.
 

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Thanks. I鈥檒l wait until the new OEM battery runs down enough so that the symptoms appear again, and I鈥檒l take your advice on mentioning the lemon law. I should probably look into what the WA lemon law requires before the threat is credible.
Honestly, don't wait. You'll just be delaying the inevitable and wasting more of your time having to deal with it. The first time we had the issue the battery was so low that they replaced it...with the same crap battery. The second time all they did was charge it. Best/easiest/fastest thing to do is just tell them, I want this battery installed & I will pay for it out of pocket. Or just go to auto parts store, buy said battery, and put it in. Will still be a way better option than keeping the super small crappy lead battery in.
 

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Honestly, don't wait. You'll just be delaying the inevitable and wasting more of your time having to deal with it. The first time we had the issue the battery was so low that they replaced it...with the same crap battery. The second time all they did was charge it. Best/easiest/fastest thing to do is just tell them, I want this battery installed & I will pay for it out of pocket. Or just go to auto parts store, buy said battery, and put it in. Will still be a way better option than keeping the super small crappy lead battery in.
I don't mind replacing the battery myself, but then how do I get the BMS reset? I don't have a Forescan setup and I don't think I'd use it enough to justify purchasing it.
 

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I don't mind replacing the battery myself, but then how do I get the BMS reset? I don't have a Forescan setup and I don't think I'd use it enough to justify purchasing it.
I'm not sure other than Dealership or Forscan. I couldn't find my OBD2 USB cable from a few years back so I wound up just purchasing a new OBDLink EX and getting the free trial of the extended version. That's how I noticed the battery name wasn't changed in the system so I resolved that issue.
 

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You are preaching to the choir! I鈥檝e been following this thread for months and I can see that others have solved their problem by upgrading to a larger capacity battery, and I was ready to have that done, but my stubborn dealer insists that the battery won鈥檛 fit and they won鈥檛 try.

I could have an independent shop I trust put in the battery, but I don鈥檛 think that they can reset the BCM to reflect the change to the larger capacity, AGM battery. I don鈥檛 know to solve that problem.
I may be 'preaching to the choir' but you asked about the AGM and Deep Sleep issue and the fitting of the battery etc. which I answered along with other contributors on this thread. Also I just suggested what you could do in the meantime with your current new battery. The ultimate solution of course is to purchase a new AGM unit as suggested here and if you cannot reset the BMS get another Ford dealer to do it. You will also find that many independent shops know how to reset it if you ask.
 
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I have to thank the folks in this thread for giving me the basis for showing my dealer that an AGM battery would fix the constant deep sleep mode warning and the related problem of the passenger side intelligent access key not working. I give my dealer credit for persisting in their effort to fix the problems after 5 visits. Initially they said they had to replace the passenger door handle per Ford's request. They also did a parasitic draw test which showed no draw. They replaced a supposedly non functioning passenger signal turn signal module, and replaced some other computer module over the course of 5 visits to the dealer. The technician at first was concerned that the AGM battery would not fit but when he installed it, he noted that it did have some sort of adjustment that was for the larger battery. It's been 2 weeks since the AGM battery was installed and so far no problem. Ford probably had to pay much more for all the other labor costs and parts than to simply replace the battery. I suggest complaining to Ford customer relations (800-392-3673) in addition to your dealer about this. My technician said he was going to write up the information and send it to Ford who he thought should issue a technical service bulletin, but don't hold your breath. Other than this experience, I am very happy with the Escape.
 
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