Car randomly dies when parked

[ryanking5.0]

My car randomly died 3times only when parked after normal driving (no hard pull). Idle rpm doesnt fluctuate, it just drops below 500 then engine off (screen ok). MAF, TB clean. I checked all the wires. I keep getting system off to save battery warning on the screen since battery died but voltage looks good between 12~14v all the time.
This started to happen after I installed UPR billet breather tank which I think it's weird. Didn't have any problem after installing a supercharger. I installed a supercharger a month and a half ago then I installed upr two weeks ago and this started to happen.

My car 2021 automatic (10kmiles) ESS G3 supercharged 93Lund tuned with BAP

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[MidnightStars]

Is this battery new?
If so, it probably needs a BMS reset: BMS reset - no tools required | 2015+ S550 Mustang Forum (GT, EcoBoost, GT350, GT500, Bullitt, Mach 1) - Mustang6G.com

If the battery's been there for a while, try the BMS reset anyway, it will not hurt anything.

If still bad, try a KAM reset: KAM Reset = Magic | 2015+ S550 Mustang Forum (GT, EcoBoost, GT350, GT500, Bullitt, Mach 1) - Mustang6G.com

I have heard a great many problems being fixed with KAM reset.
Only downsides -> Relearn idle strategy, relearn fuel trim, relearn transmission shift points, etc. Basically, you need to invest some time in driving the car gently for minimum 20 or so miles, until it's all relearned.