Thanks guys for the comments. Reason I believe the nvme drive is responsible at least partially is because of accounts of others I have read of others that have experienced the same thing. Also read reviews on the 9350 that criticized its poor battery performance despite Dells claims to the contrary. Then there’s the heat I feel coming from the underside. It’s really hot at times. I had to placed a thermal pad to keep the drive cool or cooler. Going to buy something this weekend. Got nothing to lose. Thanks.
You're not going insane. It's remarkable in 2020 how it seems no-one is aware of the huge difference in battery life that drives will give you on your laptop, regardless of them having low power states available. The controller and the type of NAND used will both have a massive impact on how much power the drive draws.
This is a massive list of different SSDs and their respective battery life in laptops as reviewed by Chris Ramsayer for Tweaktown:
https://www.tweaktown.com/articles/8856/best-ssds-notebooks-two-year-study/index3.html
As you can see, with a roughly 7 hour top score, the difference between average drives is about an hour, and to the very worst drives can be as much as two. When you stretch that out to a laptop that has a battery life of 12 hours, that difference can be pretty huge. And those tests are performed with continuous usage. If the drive has certain weaknesses in terms of returning to its' low power state when your laptop is idle, then you could be looking at your battery life being utterly decimated.
OEM Samsung drives tend to be at the head of the field when it comes to NVME, with certain drives being much better than others. The true battery life king is the SATA 3 Samsung 850 EVO version 2, with 48 layer NAND instead of the original 32, and it sips power like nothing else. Any laptop I've put it in has seen an extension of 1-2 hours battery life over the previous SSD. I would take 550mb read/write speed with a big bump in battery life any day of the week. Literally no difference whatsoever in real world use, unless you're copying large files constantly or working with video editing. Even boot speed depends more on the firmware of the laptop, and the amount of software loaded at startup on Windows, than the speed of the drive inside.
Yeah these NVME drives are extremely low power consumption, its not the cause of your reduced battery life
you can get cooler running ones for less heat, but these are damned low power usage devices
Not all NVME SSDs are made equal.
That sounds really odd, I highly doubt a drive can literally halve your battery life. In fact there is no way it's anything but negligible, I think you'll be wasting your money trying to find a drive with better efficiency, it just wont matter.
Like I say, I find it remarkable how nobody seems to know how much impact an SSD can have on battery life, and I would like to see that change.