I've had my Galaxy S21 for 2 days, and the battery life is absolutely terrible. It barely makes it 8hrs, and for most of that time, I'm at work and not even using it. I lost 30% of battery life listening to 3 songs. I understand it learning etc but this is ridiculous. Every other Galaxy I've ever had has had great battery life, right out of the box. Is it defective?
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I have the Exynos version for 3 days so far and it overheats to the point where I cannot even touch it!
it has dropped 10% in 15 minutes of just texting on WhatsApp, no other apps were opened. keep I mind, my phone was on dark mode, power-saving mode, 60hz refresh rate and on low brightness.
It is incredibly upsetting because if I am paying for a high-end product I expect to be able to use the features that make it high end. I should not have to compromise and use night mode and a slower refresh rate.
overnight, I took off my wifi, Bluetooth, data, location etc. and it dropped 14%. it is unacceptable for a flagship to lose this amount of battery by just being on. nothing else. I am also unable to multi-task due to the overheating and the phone lags. Incredibly disappointed
today I used my phone for nothing but replying to a few messages and scrolling through Instagram for a few minutes but the battery has drained twice and overheated multiple times!
My J7 Prime 2 had a better battery performance than this and barely overheated. This is embarrassing!
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Agreed (with @cj5neal)
Everyone's usage is different and so will be reflected in performance statistics.
Some folks only make phone calls, surf the web, text message
Some folks are into photography and videos.
Some folks are into gaming.
Each of those will result in different statistics.
Something to keep in mind.
For the first week or so (2-3?), your phone will spend time learning your usage patterns.
After this period of time, battery usage will improve.
For me, I have a slightly different policy about initial phone settings. Where many folks "turn everything on", I do the opposite, I. e., I restrict many things for about 2-4 weeks.
I'm up from 6am to midnight almost everyday, using the phone as often as it makes sense (not overdoing it, mind you).
About midnight, I'm at about 20% now ... 3-4 days ago, I'd be charging around 8-9pm, so I'm seeing improvement already.
Today, I've reverted to "turn on everything" (almost everything :), like Adaptive motion and Adaptive Brightness, background activity for some apps.
So I'll take another slight hit in battery usage for an couple days, but it will improve.
Here's how to think about it. when you buy a new car, you should "take it easy" for the initial 1,000-5,000 miles for a proper "break in period".
However flawed my methods seem, it works for me with a positive outcome.