Deep Sleep temporary fix using trickle charger

[dadd75]

Search Threads for H5

According to Amazon, the H4 is the same dimensions as the OEM battery in my truck from the factory. The H5 is longer, and other threads state you have to bend two metal brackets down to fit the H5 battery into the compartment. This is why I"m questioning the H4 vs the H5. Thanks.

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[inline_five]

According to Amazon, the H4 is the same dimensions as the OEM battery in my truck from the factory. The H5 is longer, and other threads state you have to bend two metal brackets down to fit the H5 battery into the compartment. This is why I"m questioning the H4 vs the H5. Thanks.

My wife has a Prius, we put in a generic 410 CCA AGM battery in 2015 and it is still doing its job. It's down to 50% SOH but all the battery needs to do is connect the relays, and you don't need a big one for that.

I think the Maverick is a 99r/T4, but sometimes smaller batteries are less popular which makes them actually cost more. So you can find a slightly larger battery for less money that will also fit.

 

[HeyBales]

According to Amazon, the H4 is the same dimensions as the OEM battery in my truck from the factory. The H5 is longer, and other threads state you have to bend two metal brackets down to fit the H5 battery into the compartment. This is why I"m questioning the H4 vs the H5. Thanks.

Your research is correct - H4 is the OEM size, H5 requires some mod's.

You can find H4's with much better Reserve and AH ratings. H5 obviously can go up a notch on those specs, but probably not needed as AGM factor is good enough.

And good point above about odd sizes being more expensive or hard to find.
I've got a list going in case I have an issue requiring immediate need, but by then probably be better options cheaper anyway.

 

[VermontXLT]

What the notification has told you is your battery has dropped to less than 12 volts to an approximately 25% charge level. Essentially discharged. This is NOT a "feature". It is NOT "saving" the battery. Leaving a vehicle battery, be it a flooded lead acid battery, or AGM style, in such a low state of charge will destroy that battery. One could give Ford some slack if this problem had suddenly appeared in a new model year, but this problem has existed since the Maverick hybrid was first introduced. Instead of spending their time and efforts in redesigning the front end and dash of the Maverick maybe they should have devoted more resources into fixing the problems in the existing models, .i.e. deep sleep and the backup cameras.

I actually checked the voltage before I started it and it was 12.1 volts.

 

[MakinDoForNow]

Your research is correct - H4 is the OEM size, H5 requires some mod's.

You can find H4's with much better Reserve and AH ratings. H5 obviously can go up a notch on those specs, but probably not needed as AGM factor is good enough.

And good point above about odd sizes being more expensive or hard to find.
I've got a list going in case I have an issue requiring immediate need, but by then probably be better options cheaper anyway.

An H4 is about 3/4" taller than a group 99 size, so it would remove some of the air space above the battery....

 

[ZABSMAV]

Your research is correct - H4 is the OEM size, H5 requires some mod's.

You can find H4's with much better Reserve and AH ratings. H5 obviously can go up a notch on those specs, but probably not needed as AGM factor is good enough.

And good point above about odd sizes being more expensive or hard to find.
I've got a list going in case I have an issue requiring immediate need, but by then probably be better options cheaper anyway.

The thing I think so many are missing is the point that the problem isn't the size of the battery, it is the improperly implemented charging circuit in hybrid Mavericks. Putting in a larger battery could likely exacerbate the deep sleep problem. The circuitry to recharge the lead acid battery under the seat is simply incapable of rapidly and completely recharging the battery. Replacing the smallish battery (it is NOT used to turn a starter motor as in a traditional vehicle so the battery size is not the issue) with a larger size and higher reserve capacity battery means that new battery will NEVER receive enough charging current to ever become fully recharged. Until Ford modifies the charging circuit to increase the current flow into the battery enough to fully recharge it in local driving, this problem will not go away.

 

[HeyBales]

An H4 is about 3/4" taller than a group 99 size, so it would remove some of the air space above the battery....

Despite the label being the spec OEM 99R/T4, the Spain made OEM battery is H4 which is usually used on AGM types.
Plenty of space.

 

[HeyBales]

The thing I think so many are missing is the point that the problem isn't the size of the battery, it is the improperly implemented charging circuit in hybrid Mavericks. Putting in a larger battery could likely exacerbate the deep sleep problem. The circuitry to recharge the lead acid battery under the seat is simply incapable of rapidly and completely recharging the battery. Replacing the smallish battery (it is NOT used to turn a starter motor as in a traditional vehicle so the battery size is not the issue) with a larger size and higher reserve capacity battery means that new battery will NEVER receive enough charging current to ever become fully recharged. Until Ford modifies the charging circuit to increase the current flow into the battery enough to fully recharge it in local driving, this problem will not go away.

Threads I read seem to show they get that point already & have moved past it.
Time is more money to them so time to move on.
Now there are a few posters that seem to mimic the rumor AGM is the solution.

I for 1 hope I'm wrong & the upcoming software change will address the common root cause.
Perhaps they did pursue the bigger issue, but the SSM that mentions an update is about an infrequent battery drain issue - which is not the common issue with battery saver & deep sleep modes.

Maybe that's why it is taking longer. Because turning off say a cabin light left on after a period is obviously done so shouldn't be this hard to disable a circuit with high draw.

 

[palmtreefrb]

I suppose you could re-purpose something like this and run from the trickle charger to your bed.

 

[Bruce W]

The fact this

The fact this issue even exists makes me second guess buying a ford.

I don’t think it’s just Ford. New vehicles in general have way too much going on under the hood when it comes to electronics.

 

[Jeffredo]

This whole thread is ridiculous. To expect an owner of a Maverick Hybrid to go out and have to buy a charger and plug their vehicle in at night is rediculous. We didn't buy a stupid plug in EV. That is just a bandaid approach to a bleeding artery. Ford has known about this problem since the 2022 model year and is just getting around to supposedly doing something about it? I suspect they were ignoring it, saying publicly we "weren't driving enough. Please drive more", until the shear number of people having this problem (basically every owner of a hybrid Maverick) grew so large and vocal that they had to finally do something about it so sales weren't affected. This is the next "back up camera defect" P.R. disaster for the company. The recall for this will be so huge that the impact to future sales will yet to be seen. Also, someone pointed out that other vehicles like Subaru's have this issue. Who cares? That's not our problem. That is deflection. That is Subaru's problem. This is Ford's problem to solve, and the clock is quickly ticking on this for a solution to be announced by March 30th, as they have publicly promised.

This whole thread is ridiculous. To expect an owner of a Maverick Hybrid to go out and have to buy a charger and plug their vehicle in at night is rediculous. We didn't buy a stupid plug in EV. That is just a bandaid approach to a bleeding artery. Ford has known about this problem since the 2022 model year and is just getting around to supposedly doing something about it? I suspect they were ignoring it, saying publicly we "weren't driving enough. Please drive more", until the shear number of people having this problem (basically every owner of a hybrid Maverick) grew so large and vocal that they had to finally do something about it so sales weren't affected. This is the next "back up camera defect" P.R. disaster for the company. The recall for this will be so huge that the impact to future sales will yet to be seen. Also, someone pointed out that other vehicles like Subaru's have this issue. Who cares? That's not our problem. That is deflection. That is Subaru's problem. This is Ford's problem to solve, and the clock is quickly ticking on this for a solution to be announced by March 30th, as they have publicly promised.

It’s satisfying to read this post. We are a bunch of chumps to be charging the battery of a new vehicle.
I’m not charging my battery. When the truck doesn’t start I’m going to call the nearest Ford store and tell them my truck won’t start. We should all do that.
Remember: Ford Pass isn’t telling you to charge the battery. They say to drive the truck to charge the battery.

 

[Glen Baker LLC]

It’s satisfying to read this post. We are a bunch of chumps to be charging the battery of a new vehicle.
I’m not charging my battery. When the truck doesn’t start I’m going to call the nearest Ford store and tell them my truck won’t start. We should all do that.
Remember: Ford Pass isn’t telling you to charge the battery. They say to drive the truck to charge the battery.

I don't think anyone is a chump.
Some folks have jobs and better things to do with their time, than wait for Ford to come pick up their truck. Basically what they're doing is they're trading $200 for the convenience of their truck starting when they need it.

 

[mav1212]

I don't think anyone is a chump.
Some folks have jobs and better things to do with their time, than wait for Ford to come pick up their truck. Basically what they're doing is they're trading $200 for the convenience of their truck starting when they need it.

 

[mav1212]

I bought a 24 lariat in June. I’ve had a battery issue from the beginning. They replaced the battery in November. Still have the issue. Just about every day I get a message that remote features are shutting down or it’s going into deep sleep. I had it towed to the dealer the 4 th time it wouldn’t start. They said it worked fine for them. Of course. I’ve tried to disable the proximity keys to see it makes a difference. But the instructions don’t fit my truck. Also wondered about disabling the WIFI. Has anyone tried that? It seems like there is a parasitic load, but can’t find it. I now carry a little jump starter-

 

[MakinDoForNow]

I bought a 24 lariat in June. I’ve had a battery issue from the beginning. They replaced the battery in November. Still have the issue. Just about every day I get a message that remote features are shutting down or it’s going into deep sleep. I had it towed to the dealer the 4 th time it wouldn’t start. They said it worked fine for them. Of course. I’ve tried to disable the proximity keys to see it makes a difference. But the instructions don’t fit my truck. Also wondered about disabling the WIFI. Has anyone tried that? It seems like there is a parasitic load, but can’t find it. I now carry a little jump starter-

I'm in the camp that it's more of an intermittent load along with a charging algorithm that has to estimate how much current and when to actually charge the battery. I have two 2022 hybrids and are living with a noco 5g until Ford may or may not figure out something. I have not disabled anything but when I park it I will double lock the truck, which turns off the delay circuits at the time of the double lock. If I want the exterior lights to stay on to see to walk to house I will wait to double lock with the fob when I am at the door. It will not save much current but every bit helps. The dash power point will stay on for up to 90 minutes if something is pulling current even when truck is double locked. My dealer replaced my OEM battery at 33 months for a dead cell. The new one is working very well but if I don't drive it for a week it will be down to 12.0-12.1 volts so any time it don't expect to drive it for 3 days I will put noco on the jump posts under hood.

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