Starting issue

[randynmartin]

I have a 2020 ram 1500 big horn Wouldn't start one day Jumped it started fine drove home next morning same thing. Replaced the battery (yellow top) 885cca had to jump start it with the new battery, Drove to work then wouldn't start at work Got battery and alternator checked it was good but the orileys machine said starter fail (did not turn off truck to test for fear of it not starting) Brought it to pep Boyz the inspected it found nothing wrong and it started for them fine Picked it up started fine drive home Starter fine the next day drove to and from work just fine. Would not start this morning it's just clicked. Tested parasitic draw and was pulling 45-50 Ma.

 

[kapinallinen2]

Tested parasitic draw and was pulling 45-50 Ma.

That draw is with in the spec.
Could be the starter acting up I suppose, how is the battery voltage when this happens?
Also the RF hub going bad might cause something like that, any evidence of water intrusion in the back?
Except, it does not make sense to start with the jump pack if the hub was involved.
I would go after all of the power and ground connections related to the starter .

 

[MagicMarker]

I would check grounds and cables next, not RAM specific, but more than one vehicle I have owned I became a glorified “parts changer” before coming to my senses and looking for the obvious (corroded cables or ground). Keep an eye on the voltage meter while driving should be over 14v in general (occasional drops into 13s are fine). Do you have eTorque 5.7? Those would have a more complex electrical operating system…Also try tuning off auto stop/start (if you have it) for a bit to rule that system out.