New Battery Every 2 Years?

[HeyBales]

Yes my wife only drives 3 miles to work and battery only gets 85 %. When unplugged battery gets 100%. Battery maintenance comes up once a week because she didn't drive far enough

I could see the fail-safe charging level be very different between the hybrid and your EB.

EB with battery in the engine bay - potential overcharging not a problem. Well, not for humans - kill the battery sooner, not great.

Hybrid with battery in the cabin - potential overcharging really not a good thing.

Considering on the hybrid the SLA was allowed to only get to 85% before discharge would occur, and above 80% was only float level charge below 1A anyway - if the system had no sensor reading, and it can exactly control the Amps charging - I'm betting it'll be a bad level.
I mean - it's already bad, I mean worse level!

But - I'm going to test!
I'm hoping the PID's for some of the battery info are not only from that sensor.

But at the least, I can get a reading from the DCDC convertor low voltage circuit which includes the battery charge.
I know where that pretty quickly ends up, so it won't be too hard to tell what happens in the first 5 minutes.

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[Thoron99]

Well - that's why it went into Deep Sleep Mode - because it hadn't been started for 10 days.

Doesn't mean it was a battery reading that was low, it just doesn't know how much longer it won't be started, so to be on the safe side, disable the modem for remote functions.

Besides - you starting it up and not able to run it long enough to charge up the battery any appreciable amount, will now actually cause another 60-75 min of time with all systems eventually going back to sleep after it stops, but causing more draw during that time. And increasing the chances of something not going to sleep.
There is no benefit to the battery doing that, only potential downsides.

Well this is my first car with remote start, thought that might have helped? Anyway the Maverick started fine other than the interior lights being off.

 

[HeyBales]

Well this is my first car with remote start, thought that might have helped? Anyway the Maverick started fine other than the interior lights being off.

The amount of 12V charging in the 5-15 min run, is easily less than the amount of draw during the following 60-75 min as systems eventually go back to sleep.
And that run if the ICE actually turned on, may have kicked on a test of the fuel tank pressure to happen later, which causes more draw yet.

So lights off on 25/26MY happens after so many days non-start, I don't recall that being a thing on prior MY's, so that battery saver function was likely enabled due to lower battery voltage at that point below 12.1.
Not surprising on hybrids.
At least it doesn't take much juice to start.

 

[mwelby]

Hello Fellow Ford Drivers,

I have a 2022 Maverick XLT AWD Gasoline engine. I replaced the battery in 2024 and just got another new one in 2026. I've read on the forums about the issue with the system chronically under-charging the battery. My brand new battery has a resting voltage of about 12.15 V. I've tried the Forscan fix of adjusting the charge from 80% to 95% and it hasn't made a difference. Anyone else found something that actually works, short of putting a battery maintainer on it every so often to get it up to full charge?

If using the maintainer is the only option available to us while Ford continues to ignore the issue, how often is it recommended to top it off?

Interestingly enough, when I replaced the battery this last time I asked if there was anything I could do or if I should just expect to replace it again in two years and he shook his head and told me I should expect to do this again in 2028.

. If it’s less than three years, I believe it’s covered under the three-year 36000 mile bumper-to-bumper warranty. I had one replaced on my escape years ago that was just under the three-year mark and the warranty covered it.

 

[HeyBales]

. If it’s less than three years, I believe it’s covered under the three-year 36000 mile bumper-to-bumper warranty. I had one replaced on my escape years ago that was just under the three-year mark and the warranty covered it.

I would math that no matter when in 22 it was gotten, it's past 3 years.

 

[mwelby]

I would math that no matter when in 22 it was gotten, it's past 3 years.

Oops, didn’t catch the year!

 

[HeyBales]

Well Glenn, I tried doing a reply all on the mobile device since the video was here and the data file was here. And MTC did a page refresh and everything was lost. It did not do its normal draft save. Super annoying.

Now I don't have time to redo it.

 

[KO Stradivarius]

Are you buying AGM or flooded cell batteries?

The charging behavior of mavericks is what it is. Ford has no interestin changing it.

There are 2 semi permanent fixes. The first is to get the 4 pin trailer clip to keep the truck thinking trailer lights are attached, which makes the system pump out full voltage the whole time, or to use a lithium iron phosphate battery that can happily sit at 80% charge for years without issue, which is what boat guys do now.

Just for kicks, I got one of these trailer hitch lights to plug into the 4-pin connector in order to perform the "trick" you mentioned it Fix #1.

This disabled the parking assist lines on my backup camera. Makes sense since the lines do not really apply if you have a trailer back there.

I eventually did some Googling and figured this out, unplugged it and the lines immediately returned.

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