Got my unreliable battery replaced by a random dodge dealer under warranty.
Embarrassed me and thought I was stranded a few times. Wouldn't start when run for 10-20 miles in 80+F heat and sunny and then started up within 15 minutes of turning off. I swear every time people gaulked over the car this issue came up and watched me jump start it
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Friend's auto shop stress tested the battery and said it tested at 66%. Dodge dealer made me wait 2.5 hours (I think they trickledl charged it) and said it charged to 90%. But said "they'd make it fail" and get me a new one.
No clue what the stock one was, I didn't think to snap a picture before, new one looks the same, but factory battery specs are all over the place ranging from 730, 750, 800cca MOPAR branded batteries. Need to find the made on date code.
New battery's only difference is so far, pulling voltage up on the dash, the voltage in drive used to fluctuate between 13.9->14.3V. New battery it went between 13.9 and 14V after started, once in drive it was flat at 14.0V I even turned everything using electricity on max and no change. I'm sure that original battery was a POS. Just odd the dealership had the correct hellcat battery in stock. I'm assuming it's a truck battery.