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That would be my instinct to do too. First drive to get some lunch and the voltages were better. Started at 14.1, then down to 14 and then stayed between 13.8 and 13.7 for the rest of the drive. From what those who know a lot more about this than I do that seems like normal float...

And just like that it finished about 10 minutes after I posted. It's interesting to me that it says it will take up to 4 hours and mine took just about the entire time. All radio stations were still there on all three bands, AM, FM1 and FM2, the time was still right too. Not sure what else...

Today is the day I decided to desulfate my battery with the NOCO Genius 5. I heeded the warning and disconnected my battery and every 15 or so minutes I put my volt meter on it to see what the "high voltage" warning was all about since I'd read someone saying they saw swings ranging between 19...

Reviving my thread. I think this is fixed. I updated my sync software back in December and i haven't had the clock go off by a few hours since then. Now that we've hit daylight savings time and past it I think I'm in the clear since both time during the year when we'd change the time is...

That's pretty cool.

You haven't used a NOCO though right? I too would prefer to not lose settings if I can avoid it but it seems the NOCO recommends this because of the voltage spikes.

So I had to make another trek to Folsom (150 miles) and it was in the upper 50's-60's on the way up. My voltage stayed between 14.5 and 14.6 all the way up. Once I got here and the temps went into the 70's and I was driving around town it was anywhere between 14.3 at initial start up and 14.0...

I'm hoping we will know as I'm hoping that my battery lasts at least another year and/or doesn't look like it failed due to overcharging. As mentioned before, I'll come clean and tell you all if my battery dies an ugly over charged death. So far I'm pretty happy with the results of 90% for...

I'm looking at Option #4 - figure out what percentage to set the SOC to in Forscan such that I don't need an trickle charger and I can keep auto stop/start enabled and use it as I need. With mine set to 90%, even after a couple of long drives I'm not seeing the low voltage spiking to high...

I'm loving all this discussion by the way. Thanks all for continuing this and my goal is to figure out what the right SOC % is.

I'm going to leave mine at 90. My battery is over 4 years old (I picked up the truck 4 years ago later this month) per the Forscan PID (somewhere north of 1460 days) and up until a couple of months ago the only thing I noticed was auto stop/start wasn't working reliably. So, the system at 75%...

Simpler times:-)

That's good to know/hear. I would love to hear from anyone who's set theirs to 95% or even 100%. As someone who used to sell parts for a living and used to do a lot of wrenching on my '65 Mustang I remember vividly how charging systems got much better when they went to solid state voltage...

Oh, this is good. If raising the SOC does indeed limit the use of BMS using regen that would be good. Meaning, my fear of having the SOC so high that the alternator keeps it fully charged and then regen overcharging it seems like it might not be something to fear?

My XL (STX) SOC was 75%. So, I'm not sure if others see the same thing or not. I wonder if where the truck was sold plays into it as well.

Yea, I've seen many others say pretty much the same thing. Seems like it doesn't matter how often you charge it, the BMS will drive it to the SOC %. As for ASS, I don't hate it. But, I wish I could change it to default to off. I do like to use it when I get to a light that just turned...

Yea, I was hoping others had been doing some of this "real world" testing but it looks like the successful approaches so far are 1) Disconnect BMS, you and dtech (and probably more) and 2) trickle chargers. I know an old Ford parts guy who I've been asking about this. He talked to the...

OK, good to know thanks! I'm hoping that the engineers planned for full batteries and so the BMS is smart enough that if the battery has enough charge those spikes won't happen. It does seem like mine is acting pretty normal and that long drive really seems to have helped. We will see what a...

But to confirm, you don't have BMS hooked up so your 100% would be w/o any "regenerative charging" right?

OK, will do that. Assuming that I should disconnect the battery from the truck as there seem to be concerns that I could "fry something" with the higher voltage?