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- #1
I’ve noticed that my 12v power to my truck bed immediately shuts off after I turn the truck off instead of it staying on for 90 minutes after. Anyone else have or had this problem and know of a fix?
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Truck Bed 12v Power Shutting Off When Truck Shuts Off
- Thread starter RedHotChiliPickles
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Go into vehicle settings and see if automatic delay on is selected and not automatic delay off selected.
ETA: SORRY cannot get to settings for the power point delay through menu settings. Has to be done with Forscan. I found on F-150 forum where someone moved his power wire to an always on fuze which could take his 12v to zero volts if he forgot to turn a switch off.
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- #3
hmm, the only thing I’m seeing is the auto delay for the lights. Nothing for the 12v power in the truck bed.
I'll have to see if I can find it tomorrow! Will try net search tonight.
Found this. Delay timer for all 12v power points = Requires forscan = can keep on 1 to thousands of seconds or until battery voltage drops to trigger level = IF your battery is below trigger voltage (11.8 or 12.1 not sure which) the power point will turn off!!!
https://www.mavericktruckclub.com/f...ts-always-hot-or-change-delay-variable.19548/
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Your battery is likely sulphated and needs replacing. Measure the voltage after it has been sitting overnight - it should be 12.6V and if its less then effects like shutting off the power outlets is one of the first things that the truck does to try and keep itself alive. It will go into deep sleep mode at 12.0V, but effects like keeping the interior lights off when you open the door should be happening long before that. If this is an EB, at some point around 12.0V it will not have enough CCA left to start, and if its a Hybrid then it can get down to about 11.6V (10% charge) before it goes dead. The problem is that your BMS is misprogrammed and not charging the battery fully. That leads to sulphation of what was a perfectly good battery, killing it. Rumour has it that a fix is coming in 1Q25.
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- #7
Thank you for taking the time to research this! I appreciate it!
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- #8
Interesting. This is a 2024 that I ordered in November of 2023 and got May of 2024. Would this be the case for such a new vehicle?
Yes. My 23 just had a new battery at 13 months since the manufacture date. The BMS programming is completely wrong, and your new battery starts sulphating from the first day. If the software correction does not happen as soon as anticipated, figure on 2 to 3 batteries until you make it out of warranty. After the fix, the sulphation has already well underway, and you'll probably need one after warranty expiry.
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- #10
well that’s a huge bummer
I have two 2022 hybrids a lariat with a 34 month old OEM battery and an XLT LUX with a 29 month old OEM battery. Both get five to seven days with a noco g5 maintainer every three months to fully charge and remove sulfate. Never had a deep sleep but have had no dome light , etc a few times resulting in a noco g5 session. I am out of Town and my dealer has been sending "come in and get your battery checked" emails DAILY. (My 3/36 warranty is expiring Feb 9th = maybe he wants to find my bad battery?). Will go in next week.
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