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Normal charge numbers?

Onebadv2

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‘21 Gladiator Sport with 3.6. Having zero issues but voltage shows between 14.6 an as high as 15.0. Has for the last 9 months. Starts instantly. Seems high but I don’t know about these new high tech engines
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kevman65

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Do you not drive often?

Or not drive far when you do?
 
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Onebadv2

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Every day or every other day at latest. Always longer than 30 minutes. Numbers never fluctuate during the drive no matter how long the drive is.
 

kevman65

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The numbers you show means your batteries are being charged at that voltage.

If still original, you may be coming up on replacement time for the pair.
 

Biggy

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I replaced the main battery and deleted the aux last month. I have it hooked up to a battery tender always now , but I still see voltages in the high 14's and have seen 15 v on occasion. Usually after 30 min of driving it shows in the low 13's. I would have thought that since it's on a tender I wouldn't see those higher charge rates
 

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Mr._Bill

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The charging voltage will go higher with cold temperatures. Numbers that high indicates the batteries need charged. If they don't ever drop, the batteries are getting close to replacement time.

Use a good AGM charger and separately charge each battery, and reset the IBS. That should delay replacement for a while. If it doesn't help any, then I would replace both batteries very soon.
 

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14.6v is a normal charging value
 

tastetickles

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The last time i change both batteries, it reads 14.4 to 14.6v and goes low to around 13.9v when it’s charged. Recently my aux died again which is only 10 months old, the voltage plummeted to 14v highest and 13.8v lowest. I caught it early so the main battery is ok but not happy with how shortlived the aux battery is.
 
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Onebadv2

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The last time i change both batteries, it reads 14.4 to 14.6v and goes low to around 13.9v when it’s charged. Recently my aux died again which is only 10 months old, the voltage plummeted to 14v highest and 13.8v lowest. I caught it early so the main battery is ok but not happy with how shortlived the aux battery is.
I would have thought the charging numbers would have gone up, not down, if one of the batteries were failing.
 

Freems

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The last time i change both batteries, it reads 14.4 to 14.6v and goes low to around 13.9v when it’s charged. Recently my aux died again which is only 10 months old, the voltage plummeted to 14v highest and 13.8v lowest. I caught it early so the main battery is ok but not happy with how shortlived the aux battery is.
Same exact bs on mine, put in a new main, deleted that dead Aux crap and left it’s dead body to rot in the wheel well.
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