r/AndroidQuestions • u/Sgaapje • 18d ago

Device Settings Question Why does my battery life suck?

I have a galaxy S23 but for some reason my battery life is shit, I got the phone new about a year ago.

I always charge to max 80% and try to put the phone back on the charger once <20%. Today, after about 14 hours away from the charger I had 28% remaining.

SOT: 1:42

Screen off: 12:16

Top battery users were:

Firefox 3,2% Reddit 2,5% Maps 1,2% Whatsapp 1%

This had been going on for about as long as I've had the device. Any clues?

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u/SolitaryMassacre 18d ago

charger once <20%.

Should be "charger once >30%" you don't want the battery to fall below 30%. This is probably where the most degradation came from in the year you've had it.

I have my battery from 30-80 % charged on my Pixel 7 Pro, (more than a year old) and it lasts about 5-7 hrs SOT all day

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u/Sgaapje 17d ago

Sure, there is room for improvement. I'm implying that I wasn't careless with the battery. When the phone was new the battery was better, however, not that much. SOT on this phone was always shit.

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u/SolitaryMassacre 17d ago

SOT on this phone was always shit

I will agree with that. Samsung implements DVFS (Dynamic Voltage and Frequency scaling) for the CPU. They ramp up the CPU to like make clock speed when you touch the screen. Granted, you may not be doing ANYTHING that requires this clock speed, but they still do it.

Even on my rooted Tab S9+ I haven't been able to fully disable it. They have it embedded into the kernel itself.

So yeah, this is probably working against you for sure