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For the most part I have not, and that may have been an error on my part. BlueSpec seems to be having better luck with his settings. It's still an H4 battery, 45AH capacity, and the charge type is set to AGM (Stock setting, thanks Ford!). The one thing I did try was increasing the target SOC...

Not who you asked, but I'll chime in. 3 weeks with an upgraded battery in mine. It has helped but not totally fixed the issue. Idle drain is way down, I lose maybe 1% when parked for 12 hours at a time, that's down from 4-5% with the old battery. New one has slightly more capacity and...

Aforementioned plot, data recorded on 12/01/23 with Motorcraft FLA battery installed. Started charging at 6 amps, tapered off around halfway in. Started from 45%, finished at 48%. Gained 3% charge. First hit 0 charge amps ~14.5 minutes in. w/AGM battery, data collected on 12/25/23 with...

Turned off Fordpass, Wi-Fi, and automatic updates on mine sometime back in April-ish. Started having deep sleep issues with the second battery a few months after it was installed. I could tell because the interior lighting doesn't come on. Disabling the networking stuff is a step in the right...

Dumb question, was BMS reset after they installed the new battery? If it wasn't reset the truck complains about the battery level being "Out of Range". I think that impacts charging behavior? In my screenshot below it was only getting 1.00A. Don't think it ever gained any % charge while running...

From the spec page on Optima's site: So 42AH and 78 minutes reserve charge, if I'm understanding correctly. I don't think it would not work? But it looks like you can get more AH/Reserve capacity with one of these units: 50AH, 80 minute reserve capacity. And these have been tried and...

Looks like he can? Tech Tye stuffed an Optima DH5 in his, same 9.5'' long battery. He had to pull off the floor trim to do it. Looks like a pain in the arse, but kudos to him for trying it. So, the aftermarket batteries we know will fit the hybrid: AC Delco LN1 AGM - Drop-in replacement...

TL;DR Fully charge your new battery and try a BMS reset before buying a replacement battery. They seem to help, but I don't know to what extent. Might be able to fix this without spending any money. JohnKN had some luck with this battery BlueSpec has one of these installed in his hybrid, and...

Yes, the BXT99RT4A battery that was in it before was 43 AH, with a 65 minute reserve capacity. New one is 50 AH with an 80 minute reserve capacity. It's also AGM vs the stock flooded lead acid. It should charge faster compared to the outgoing one. But as of now I'm not seeing much difference...

I'll chime in and say I went for it and installed an AGM battery in mine. My initial findings are not all that promising. It's still early on, but I'm regretting this decision. While monitoring live data via FORScan, my SOC continues to drop every day. I'm only losing maybe 3-4% charge...

I can't speak for anyone else, but my truck was built on 9/26/22, TSB 22-2340 for the battery cable pertains to anything built before 5/13/22. Should be well outside the affected build dates for the harness issue. I took the truck to the dealer to have the 300A fuse looked at, this was in...

Right, after having my battery replaced the first time the issue subsided for 6 months before returning. Around the same length of time it took for the issue to first surface. My thought is that it's something the truck is doing to make the batteries go bad. Either intermittent high drain, not...

I'm using the following adapter and the following app to generate charts like the one attached: You can track 12V battery % charge and amperage over time, charging and discharging. For me it appears my problem is the truck just doesn't charge the battery up. That chart is 26 minutes of...

On the bright side, I've created the world's first Maverick Plug-In Hybrid!

I just changed the FORScan settings this past weekend. Sunday 11/19. I fully recharged the battery and reset the BMS when I did it. So this is day #2. Just checked battery voltage, down to 11.9V. Battery charger agrees, ~25% charged. I drove home from work at 5 PM, should be back asleep...

Yup, already done. Wifi off, Fordpass connect off and no 4G modem in mine. I couldn't really tell a difference. I debated pulling the fuse, but eh. It's passed multiple drain tests at the dealer, if something were drawing it down it should show up there.

I don't have pictures of my original battery, but from this user's post, some Maverick Hybrids have been delivered with LX6T-10655-BA batteries installed from the factory. And given your comparison pics, looks pretty safe to say the LN1AGM would be a perfect fit. I'll need to pick up a BM2...

You're right. it's a mechanism to keep the battery from draining further. It's a warning, an indication that the battery voltage has dropped below a certain level, 11.8V I think. When this thread was started the truck was dead. No lights, no power locks, no start, dead. Hence the title. The...

After it started to crap out, like literally yesterday. I've gone one day on these settings without burning the truck down, so... yay? The plan is AGM eventually, but I want to be sure I'm not going to kill it too. I'm buying that one, not Ford. I'll try to get another Motorcraft when the...

Nice print! That's a clean first layer! I've uploaded a .stp file to Printables, for easy remixing, a .f3d file is also out there.