Battery OEM Mazda or SAMSUNG

I get the exact same as you with my s9fe and s9, 16h and 11h, equal screen off, 100% usage.

The s9fe's get great screen on battery time much better than s9's in my usage.

On my A9+ I turned my display down to 60hz had it since February battery life is excellent.

I actually like this change. It's telling me the actual battery charge. What I don't like is at least on my S 8 Ultra is it hits 85%, then starts discharging the battery. The battery gets as low as 81% before charging again. Personally I think this charge / discharge cycle is going to be more harmful long term than just charging to 100% and holding there. So I ended up turning it back off.

Mine gets around 4-5 hours of SOT. I do wish the SOT was better. The screen is dim so I have to up it to about 40% screen brightness which is a bummer because my previous tab s7+ was bright enough around 30%. I am satisfied with it but it doesn't meet expectations or the "ultra" name.

Mazda OEM batteries known for underpowered and short shelf life. If you are in any kind of extreme climate for more than one season, there's a likely chance of failure.

162km at 42% battery is still kinda poor for 2025.

My 2025 CX-30 battery is already showing signs of dying but I bought the car in April but then had surgery in June and only went back to work today so it sat for long periods and I do leave my dash cam in parking mode. It might come back some after being driven more or it might not.

The OEM batteries are shit. It died around the two-year mark.

My battery died last July at exactly 2,5 year mark. Mazda OEM battery is a cheap trash and so are the replacements too.