Well this doesn’t seem good

[High Alextude]

Went to visit my parents yesterday, about an hour drive. Drove fine, voltage was good. Woke up to this lovely image this morning.

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[KQL]

No biggie, one of those duster cloths from Target would take care of all that dust on the steering column.

 

[JTRDistraction]

Was that while running or before you started it? Have you done any troubleshooting yourself yet? Check for loose connections, etc...?

 

[Mr._Bill]

A little high, but not out of line given the temperature shown. How old are the batteries? How often and how far is the truck driven?

 

[High Alextude]

No biggie, one of those duster cloths from Target would take care of all that dust on the steering column.

It’s a losing battle, always ?.

 

[High Alextude]

A little high, but not out of line given the temperature shown. How old are the batteries? How often and how far is the truck driven?

OEM batteries, haven’t changed them out. Usual work commute about 20-25 min each way with occasional hour or so trips around town. Does the outside temperature affect the voltage output that much?

Was that while running or before you started it? Have you done any troubleshooting yourself yet? Check for loose connections, etc...?

This was upon startup this morning, it fluctuated between 14.9/15 for about 10 min before I decided to turn it off.

 

[Mr._Bill]

OEM batteries, haven’t changed them out. Usual work commute about 20-25 min each way with occasional hour or so trips around town. Does the outside temperature affect the voltage output that much?



This was upon startup this morning, it fluctuated between 14.9/15 for about 10 min before I decided to turn it off.

The system adjusts the output based on demand and charge level of the batteries. Cold batteries require more to charge them. Any heaters (seat, defrost, steering wheel) will increase demand.

As suggested, also a good idea to check for any loose cable connections.

 

[High Alextude]

The system adjusts the output based on demand and charge level of the batteries. Cold batteries require more to charge them. Any heaters (seat, defrost, steering wheel) will increase demand.

As suggested, also a good idea to check for any loose cable connections.

That does provide some relief - the auto seat and steering wheel heaters did come on as well. It does make me a little worried about when it actually gets cold though. 40 degrees and only November is nothing.

 

[Mr._Bill]

Get a good AGM battery charger. Disconnect the cables and separately charge each battery. Make sure the loose cables do not touch any metal. Completely disconnect the sensor attached to the negative post on the main battery for about ten minutes before putting it all back together. This will give the charging system a basic reset. If system voltage goes above 15.5 and stays there, then I would get worried.

 

[ShadowsPapa]

A little high, but not out of line given the temperature shown. How old are the batteries? How often and how far is the truck driven?

That's perfectly fine for the later models in temps in the 40s or lower.
I went almost all last winter with 14.9 to 15.0 and that's ok.

That does provide some relief - the auto seat and steering wheel heaters did come on as well. It does make me a little worried about when it actually gets cold though. 40 degrees and only November is nothing.

There's your answer. You have a 2022 (they modified voltage settings since 2020) and it's 40 degrees. It's a lot harder to get that final 10 to 20 percent charge in a battery when it's 40 degrees out.
We have wild temperature swings so can see 15 in the morning then settle down to lower 14s, then the next morning when it's 35 out, back up to 15, then down again when it hits 65 and so on.

 

[ShadowsPapa]

A little high, but not out of line given the temperature shown. How old are the batteries? How often and how far is the truck driven?

Not high for a 2022 at 40 degrees.
They've obviously changed the charging parameters since 2020 as my 2022 runs a lot higher voltages than my 2020 did - it topped out at about 14.7 to 14.8 when cold. This 2022 will stick around 14.9 to 15.0 for much of the really cold weather.

 

[jav_eee]

Went to visit my parents yesterday, about an hour drive. Drove fine, voltage was good. Woke up to this lovely image this morning.

Sure looks like a lovely image to me. 41°?? I’d love to have that down here in Deep South Texas. As for the 15 volts, hardly something to be concerned about. Let the jeep do its thing.

 

[BennieD]

No biggie, one of those duster cloths from Target would take care of all that dust on the steering column.

?

 

[High Alextude]

Turns out it was a loose ground cable. Still charged each battery separately and voltage is back around 14.1-14.4.

 

[ShadowsPapa]

Turns out it was a loose ground cable. Still charged each battery separately and voltage is back around 14.1-14.4.

Which of the several ground cable/connections was it?

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