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[Hkak45]

Dd

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[Zotman]

Periodically charging for the past 1-1/2 years has not rectified the problem in my vehicle, but as some others have noted, it has never failed to start.

 

[Connect]

Guess I will have to read up more about this... I am going to go on a trip and park mine for a week and that would really suck for it to have something goofy when I go back a week later and have a goofy issue

 

[sprcoop]

Guess I will have to read up more about this... I am going to go on a trip and park mine for a week and that would really suck for it to have something goofy when I go back a week later and have a goofy issue

I've never had the deep sleep message or any of the symptoms (no start, no lights, etc.) Went on vacation for a week leaving it parked. I remote started it after 3 days for 15 minutes just to be safe and no issues when I got back.

 

[EchoPear]

Others have had success switching to a die hard battery

 

[710-oil-614]

I added the engine block heater to my Ecoboost because I live in a cold climate and cold starts are rough on the EB.

I traded in Tesla Model 3 for my Maverick so the neighbors were used to seeing a vehicle plugged in.

For the last 6 weeks or so they've seen the Maverick plugged in with an orange extension cord and just last week my next door neighbor asked me how many miles I can go before the gas engine kicks on?

I was genuinely perplexed. He said, "Your truck, isn't it a PHEV?"

"Oh - no not at all! Not even not a hybrid, it's the Tremor version that gets about 24mpg"

 

[bajesus8]

This started for me this month after leaving truck at airport for a week, i've done one trickle charge to top it off. hasn't come back yet. Owned since Oct '22 18k miles

Been lots of software updates recently so i dont know if that will fix the issue also but some here have switched to AGM batteries.
More Information for ACDELCO LN1AGM (rockauto.com)

 

[cyberdog]

Depending upon trips and sitting unused time, and proximity of the key, charging to 100% is good for two days. Mine charges the battery higher when driving at night with the lights and seat warmers on, go figure. Early this morning, drive to BNI meeting in the dark, it actually charged to 84% SoC. Came out, drove to work, which is 1.5x farther, but now light out, nothing running other than the radio, sitting at 73% afterwards.

We really just need a higher capacity battery with a longer Reserve to accommodate the drain by the onboard electronics. I'll post graphs some day of a typical drop during communication events. It's pretty enlightening all of what goes on in the background.

Once I confirm an H5 will fit, I'm stuffing in an H5 AGM Battery with double the reserve capacity, and configuring the BMS for the larger battery. - Might not be until I have a replacement at the dealer one time under warranty, just isn't bad enough to worry about yet.

 

[Hkak45]

Periodically charging for the past 1-1/2 years has not rectified the problem in my vehicle, but as some others have noted, it has never failed to start.

This in unfortunate as I was hoping it would fix the issue

 

[Hkak45]

Guess I will have to read up more about this... I am going to go on a trip and park mine for a week and that would really suck for it to have something goofy when I go back a week later and have a goofy issue

This isn't from sitting, I drive it 7 days a week so if you haven't had this issue already you should be good

 

[Hkak45]

Depending upon trips and sitting unused time, and proximity of the key, charging to 100% is good for two days. Mine charges the battery higher when driving at night with the lights and seat warmers on, go figure. Early this morning, drive to BNI meeting in the dark, it actually charged to 84% SoC. Came out, drove to work, which is 1.5x farther, but now light out, nothing running other than the radio, sitting at 73% afterwards.

We really just need a higher capacity battery with a longer Reserve to accommodate the drain by the onboard electronics. I'll post graphs some day of a typical drop during communication events. It's pretty enlightening all of what goes on in the background.

Once I confirm an H5 will fit, I'm stuffing in an H5 AGM Battery with double the reserve capacity, and configuring the BMS for the larger battery. - Might not be until I have a replacement at the dealer one time under warranty, just isn't bad enough to worry about yet.

I may end up trying a better battery too if my trickle charger only gives me an extra day or two before sleep mode. Will going AGM for battery have any negative effects on the system at all?

 

[SLINGSHOT]

Deltran Battery Tender Jr. Don't mess with the other crap. Get the real thing, hook it up to the under hood jump posts. Plug it in as often and for as long as you can. I have four vehicles and they each have their own.

 

[cyberdog]

Several owners using Forscan have found our trucks came with the battery type set to AGM, even with the 'Enhanced Flood Cell' batteries installed. AGM batteries also tend to have a slightly higher voltage than a flooded cell, and bonus, most claim better resilience to charge cycles.

 

[Hkak45]

Several owners using Forscan have found our trucks came with the battery type set to AGM, even with the 'Enhanced Flood Cell' batteries installed. AGM batteries also tend to have a slightly higher voltage than a flooded cell, and bonus, most claim better resilience to charge cycles.

Hmm that is interesting. I never knew that

 

[AutobahnSHO]

Too bad for those who deal with it- ours is at 5k miles and never any issue. Left it for about a week when we left on vacation and started just fine when we got back. (knock on wood!)

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