UPGRADED to AGM Battery (and LARGER capacity) in Maverick Hybrid

[Buyerfind]

I did what a lot of you were wondering if it could be done: Replaced the factory Ford battery in my 2022 Maverick Lariat Hybrid with a larger, AGM Battery. I decided to do this after taking to dealer too many times and them telling me nothing is wrong, and yet, I have been carrying around an extra battery in my bed to jump my vehicle when it randomly would do the deep-sleep nonsense and refuse to start.

Here was my problem: After I bought a less than $15 volt detector, the last straw was 11.4 volts. Time to replace the battery. By-the-way, I DID NOT have to modify the molding under the bench – some forums state that modification was necessary, but for THIS EverStart H5 AGM, no modification of the molding was necessary!

I went to Walmart and purchased the EverStart H5 AGM battery for $188=tax:

Once I got home and had cooperative weather, I lifted the rear bench:

And removed the battery cover:

Next I remove the molding nearest the door:

Then removed the molding piece that surrounds the battery:

And with a 10mm socket, I removed the Negative cable, then removed the RED positive terminal cover, and then the positive cable.

Then I removed the bolt with the plate that secures the battery from moving around:

Next, I wiggled the battery to make room to remove the vent (do not damage it – you will need to reuse it), removed the battery which reveals the metal tabs that hugs the factory battery in place:

I then took a piece of wood to try to hammer (16oz) the tabs flat:

But it was slow going, so I used a metal socket extension I had in the garage:

Along with trying to directly hammer the tabs flat, mission was finally accomplished:

I put the battery in place and carefully reattached the vent plug:

Make sure you do not pinch the vent hose and also make sure that the vent hose is BELOW the bolt sticking out:

Reattach the positive cable along with its RED cover (the one that came with your Maverick) then the negative cable and then reattach the securing bracket so the battery is unable to move:

Reattached the molding in the reverse order that you detached in:

Lastly, I initiated the BCM to recognize the new battery, set ignition to ACC (in other words DO NOT START ENGINE). With in 10 seconds complete the following:
1. Flash the high beams 5 times
2. Hit the brakes 3 times
3. A red Battery light should flash 3 times
4. Turn off
5. Start engine
6. Turn off
7. Next I just locked up and let sit overnight.


These next to photos are just me flexing:

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[MaVick]

Nicely done and a step by step removal and installation, thanks for the write up. One question, how does the trim from the door to the battery come off? It is just snapped in? Wanted to know how to pull it off.

 

[John Ray]

I did what a lot of you were wondering if it could be done: Replaced the factory Ford battery in my 2022 Maverick Lariat Hybrid with a larger, AGM Battery. I decided to do this after taking to dealer too many times and them telling me nothing is wrong, and yet, I have been carrying around an extra battery in my bed to jump my vehicle when it randomly would do the deep-sleep nonsense and refuse to start.

Here was my problem: After I bought a less than $15 volt detector, the last straw was 11.4 volts. Time to replace the battery. By-the-way, I DID NOT have to modify the molding under the bench – some forums state that modification was necessary, but for THIS EverStart H5 AGM, no modification of the molding was necessary!

I went to Walmart and purchased the EverStart H5 AGM battery for $188=tax:

Once I got home and had cooperative weather, I lifted the rear bench:

And removed the battery cover:

Next I remove the molding nearest the door:

Then removed the molding piece that surrounds the battery:

And with a 10mm socket, I removed the Negative cable, then removed the RED positive terminal cover, and then the positive cable.

Then I removed the bolt with the plate that secures the battery from moving around:

Next, I wiggled the battery to make room to remove the vent (do not damage it – you will need to reuse it), removed the battery which reveals the metal tabs that hugs the factory battery in place:

I then took a piece of wood to try to hammer (16oz) the tabs flat:

But it was slow going, so I used a metal socket extension I had in the garage:

Along with trying to directly hammer the tabs flat, mission was finally accomplished:

I put the battery in place and carefully reattached the vent plug:

Make sure you do not pinch the vent hose and also make sure that the vent hose is BELOW the bolt sticking out:

Reattach the positive cable along with its RED cover (the one that came with your Maverick) then the negative cable and then reattach the securing bracket so the battery is unable to move:

Reattached the molding in the reverse order that you detached in:

Lastly, I initiated the BCM to recognize the new battery, set ignition to ACC (in other words DO NOT START ENGINE). With in 10 seconds complete the following:
1. Flash the high beams 5 times
2. Hit the brakes 3 times
3. A red Battery light should flash 3 times
4. Turn off
5. Start engine
6. Turn off
7. Next I just locked up and let sit overnight.


These next to photos are just me flexing:

Great pictures thanks for being so detailed

 

[Mavman1]

Well done!

 

[Spartan]

I did the "H 4" at Walmart in Tucson for $200.00. They installed it. "No charge." Took them a while to do it but they were able to install it . It looks similar to your "H 5,". With a 4 year life span under Walmart, so better and cheaper than Ford Mo Co. Ford dealer tested it a week before it failed and said it was OK! Gee, Thanks a lot !

 

[ScottyC]

I put the battery in place and carefully reattached the vent plug:

Make sure you do not pinch the vent hose and also make sure that the vent hose is BELOW the bolt sticking out:

I firmly contend that this is the most important step in the battery replacement process....that and the BMS reset. Thanks for the excellent write up!!

 

[Glen Baker LLC]

Excellent thread.
I don't think you can get a better battery replacement write up than this one.
Few words of explanation in between a lot of pictures
Thank you very much.

 

[HeyBales]

I did the "H 4" at Walmart in Tucson for $200.00. They installed it. "No charge." Took them a while to do it but they were able to install it . It looks similar to your "H 5,". With a 4 year life span under Walmart, so better and cheaper than Ford Mo Co. Ford dealer tested it a week before it failed and said it was OK! Gee, Thanks a lot !

That OK or Good is from the point of view of warranty allowed replacement.
Sadly that's a pretty low bar (39% SOC or failed to hold charge overnight or take a load test the next day).

Now - if you'd gone in outside of warranty and asked - do I need to buy a new battery - I think we all know the answer then!

 

[Spartan]

My Truck. Hybrid , Lariat, F.E..

2022 MY Maverick built in the last week of production in 2022 CY. Picked up in January of 2023 CY. in Tucson . So over 36 months old!

 

[Joester]

So... inquiring minds want to know.
What are the chances that Ford uses a common wiring harness between options?
I have a large inverter I want to mount behind the rear seat and need some hefty power but my battery is under the hood.....

 

[HeyBales]

My Truck. Hybrid , Lariat, F.E..

2022 MY Maverick built in the last week of production in 2022 CY. Picked up in January of 2023 CY. in Tucson . So over 36 months old!

I'm shocked they didn't ask and offer then!

Be glad you likely got a better battery anyway, and easier time to deal with it in case your heat load kills them faster.

 

[Spartan]

It seems that the AGM type last at least 4 yrs. even in Hot Arizona.

Not sure when FO MO CO will have a nicer unit . So keeping my fingers crossed for.
.............................."The next small Ford truck " due sometime in 2027/28 MY.

 

[dochawk]

I firmly contend that this is the most important step in the battery replacement process....

Almost.

The most important is choosing, "Anything but motorcraft!"

 

[sajohnson]

Excellent write-up!

The dealer should have replaced it though. At least they did with many Bronco Sports (including our Badlands). That was a recall, but the symptoms were as you described.

Many dealers play all sorts of games and sometimes engage in fraud to avoid warranty work. They should be prosecuted more often. Others do warranty work willingly.

 

[pigsareus]

I did what a lot of you were wondering if it could be done: Replaced the factory Ford battery in my 2022 Maverick Lariat Hybrid with a larger, AGM Battery. I decided to do this after taking to dealer too many times and them telling me nothing is wrong, and yet, I have been carrying around an extra battery in my bed to jump my vehicle when it randomly would do the deep-sleep nonsense and refuse to start.

Here was my problem: After I bought a less than $15 volt detector, the last straw was 11.4 volts. Time to replace the battery. By-the-way, I DID NOT have to modify the molding under the bench – some forums state that modification was necessary, but for THIS EverStart H5 AGM, no modification of the molding was necessary!

I went to Walmart and purchased the EverStart H5 AGM battery for $188=tax:

Once I got home and had cooperative weather, I lifted the rear bench:

And removed the battery cover:

Next I remove the molding nearest the door:

Then removed the molding piece that surrounds the battery:

And with a 10mm socket, I removed the Negative cable, then removed the RED positive terminal cover, and then the positive cable.

Then I removed the bolt with the plate that secures the battery from moving around:

Next, I wiggled the battery to make room to remove the vent (do not damage it – you will need to reuse it), removed the battery which reveals the metal tabs that hugs the factory battery in place:

I then took a piece of wood to try to hammer (16oz) the tabs flat:

But it was slow going, so I used a metal socket extension I had in the garage:

Along with trying to directly hammer the tabs flat, mission was finally accomplished:

I put the battery in place and carefully reattached the vent plug:

Make sure you do not pinch the vent hose and also make sure that the vent hose is BELOW the bolt sticking out:

Reattach the positive cable along with its RED cover (the one that came with your Maverick) then the negative cable and then reattach the securing bracket so the battery is unable to move:

Reattached the molding in the reverse order that you detached in:

Lastly, I initiated the BCM to recognize the new battery, set ignition to ACC (in other words DO NOT START ENGINE). With in 10 seconds complete the following:
1. Flash the high beams 5 times
2. Hit the brakes 3 times
3. A red Battery light should flash 3 times
4. Turn off
5. Start engine
6. Turn off
7. Next I just locked up and let sit overnight.


These next to photos are just me flexing:

you should send this to Jim Farley with the caption 'look what I had to do in order to get around either a design and/or a lack of diagnostic capabilities at the dealership in order to get my truck not to crap out. Thanks Jim'.

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