RickLightning
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No, it will not precondition the battery on level 1.
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chriserx
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This brings up a question I have, in cold enough weather I'm certain it won't be enough to precondition the battery. But, will it still try (and in the process waste electricity) or will it realize it's hopeless and give up to the elements?
Adventureboy
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It doesn't seem to give up. It will keep trying to use the 1kW to warm the battery. It just won't have much impact if it is soaking out the bottom of the truck as fast as it is going in. It is all relative to how cold it is. A 1kW heater running on an open porch in -20° will only slightly warm a person sitting in front of it. Everyone else still freezes.
. Once it hits an equilibrium, it will hold the slight temperature increase at best.
chl
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The HV battery likely will do most of the work from what I have read, L1 just does not provide enough energy on its own. Having the L1 won't hurt in other words.
Electricity will be not 'wasted' per se - I mean some is always 'wasted' in resistance losses in the wiring and in the on-board charger, etc.
chriserx
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fhteagle
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It's not quite cold enough up here for what I would consider a valid test, but in a week or two it will be. I can throw my OpenEVSE on 120V and run a test for 24 or 48 hours and compare the OpenEVSE's wall measurement (which isn't revenue grade metering, but I have a calibration factor worked out for mine) vs what car scanner shows for a raw kWh at start and end. The difference between those two would be the "waste". Not sure how to determine how much of that went into battery heating vs other losses in the system. With the truck powered off the OBD port seems to stop feeding data to my OBDLink device AFAICT.
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NW Ontario Ford Lightning
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Adding Level 1 power will be better than adding zero power?
ackvor
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Looking forward to the results!
chl
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It is all Ford's fault for having made such limited information available to us owners.It's not really a big deal, I'm always asking dumb, edge case and impractical questions like that.
I think you'll often find that there are no 'dumb questions' and plenty of 'good answers' to choose from around here. Sometimes we just make educated guesses because Ford doesn't make it easy to know for sure.
But it is all part of our quest to understand wtf is going on with our trucks!
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chriserx
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Yeah, I'm a data whore (edit it out if I can't say that, but I like the term). Between the comma and the OBDLink MX I've been recording everything but still on the lookout for analysis tools. I've been using cabana, it's pretty comma specific but it's not bad. Several years back I had a VNC server exposed to the internet so I could remote desktop back to my house. For those unfamiliar, that's a bad thing™ because passwords are limited to 8 characters. Long story short, someone broke in. I assumed, incorrectly, that since it was the native Mac VNC server, the firewall would block multiple failed authentication attempts. Since I collect all of my networking data, I traced the 3 groups trying to break in. The one that got in was from Russia running an old version of windows server. Runners up were Las Vegas coming from a Cloudflare address and a rando Florida address which gave up. Funnily enough, I caught the Russians red handed, they managed to buy a gift card using my paypal account before I did. I reversed the transaction within minutes and sent paypal all of the data I had. So yeah, that experience has made me more of one than I was before.
As a PSA, while the world uses the term passwords, they should really be promoting passphrases. Longer is always better, and phrases are easier to remember. Even with an 8 character limit it still took them 3 days and over a million attempts to break in. These days I now run my own VPN as the only way into my home network. Live and learn.
chl
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Good advice. Been there done that too.
All my info is on the dark web since 2007 due to my insurance agent's employee who installed a file sharing program on her PC (Limewire), on his network where an unencrypted file with my info and about 2000 other atty's info was, including Justice Breyer! Made the Washington Post column by Krebs a year after it happened when they figured it out.
So I had a credit monitoring service which caught the ID theft AFTER I already had when I noticed a $1,000 withdraw from my checking account, called the bank they said someone called saying they were me on vacation in Mexico and got robbed and needed money, knew everything about me too!
With my info the theives had filed a mortgage application using a hacked password at a broker, got a credit report on me, went through the credit report acct by acct. trying to get cash advances. Got $1000 from a couple of them before I had called all my creditors to be on the lookout and change my passwords. Some were using my mother's maiden name as a default PW! OMG!
It was hard a hell to get the credit bureaus to freeze my info, my info, and remove the fraudulent inquiries - I had to threaten to sue to get their attention. Needed a police report, the police were backed up with ID theft cases, had to call my local county supervisor to get a response and get a case number to freeze my credit files.
Could have been worse - I was already checking my accounts daily, some poor folks only check at the end of the month, and the only CC that thought the call was suspicious was AmEx - they had the guy on the phone waiting when they called me - he had all my information, family member names, etc. and when she told him they were on to him he yelled at her and hung up, lol.
The next year or so, a fraudulent tax return was filed in my name as well. The IRS wasn't handling ID theft very rigorously back then either.
Much better now but I still have to be careful and file early just in case.
Brian Krebs and other articles about the breach from back then attached in a pdf.
Always something!
Anyone concerned about IRS ID theft against yourself, look into this:
Get an Identity Protection PIN (IP PIN)
digitaldad
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FYI, new users cannot request a PIN until January'ish. Ironically, I just implemented mine a few weeks ago.
IP PIN unavailable: Nov. 16, 2025 – January 2026
The IP PIN service is unavailable in Individual Online Account during this annual maintenance period.
Please check back in January to get or view an IP PIN in your online account.
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