[zman9788]

2017 6.7 that keeps having battery saver mode when cold start ups occasionally in Michigan. If I remote start when below 32 sometimes when plugged in/sometimes when not plugged in, I get message. This is second winter with truck, no problems last winter. Dealer did "GR8...?" Load test and batteries test good. Any input? Truck batteries did completely die this past summer when it sat for a week and half in driveway with 90 degree+ days. Any input?

 

[DarylB]

Did you try a search?

https://www.cumminsforum.com/forum/gtsearch.php?q=battery%20saver%20mode

 

[zman9788]

I did but I gather some say bad battery, others say normal.

 

[brulaz]

...
Truck batteries did completely die this past summer when it sat for a week and half in driveway with 90 degree+ days. Any input?

Really sounds like weak batteries.
Letting the batteries go dead in the heat almost certainly was hard on them.
Was the load test done with each battery individually disconnected?

 

[zman9788]

Considering the Ram dealer who did the battery test was same one that forgot to change one of fuel filters after I paid for both to be changed, I wouldn't doubt if done improperly.

 

[17Ram2500]

I got the battery saver mode message about a month ago. Walked out last Sunday to a dead truck.

Two new interstates from costco and I'm back on the road... Apparently the factory batteries aren't great.

 

[Quint]

Personally I would find out why the batteries were fully dead after only a week. There must be a parasitic loss somewhere thats not normal.

I had a early model csp4 switch that would turn on the console, didnt know it. Would get battery saver when cold until one day I saw my evic lit up. Got a new switch and problem solved for the most part. It will still do it in very low temp situations but havnt had any of those for a while.

 

[zman9788]

I did add a rough country 20" LED light bar and wire harness that came with it connects right to battery. I can't imagine the on/off status light draws much?