Galaxy S2 Battery life cycles - Galaxy S II Q&A, Help & Troubleshooting

This is not a complaint about daily battery life of S2, but a general discussion thread about S2 battery on the whole.
I've now had S2 for over 2 years; 26 months to be precise. I never had complaints about day to day battery life. For my usage it easily lasted for over a day.
But since a month or so, I'm requiring to charge it every 12 hours or so. I came to know that a Li-Ion battery has a particular number of recharge cycles that it will last and it will just fall of the cliff after it reaches that threshold. Am I in that region now?
Any one of you who had S2 for 2 years bought a new battery already?
Edit: I've checked with 'battery' app and its health shows as 'Good'.

2 years? Its about time to change your battery mate its dying bro...
I'll change mine to 1850mAh Sun Global brand battery...never regret
Reason i not choose stock battery is bcoz here to many clone battery, i cant trust even samsung shop hehe
Sent from my GT-I9100 using xda app-developers app

You did well to get two years out of one.

I've had my S2 for 22 month now and I never had complaints about battery life. I had around 1.5 days standby time. But since a week I noticed an extreme lost of capacity. The battery is empty after 10 hours standby now. I was wondering if such a capacity lost is possible or if that is a software bug.
Another thing I noticed is that the battery falls from 50% to 5% if I reboot my phone. I guess that must be a software bug.

Related

Awesome battery life

I have a galaxy S and as you may know, the battery needs charged everyday though I have heard of some that the battery lasts for a few days (that's 3 days).
Anyway, my sis has got a Galaxy Ace and while she's been away I left the phone off charge and had a look in every day to see how the battery was doing. I did install a couple of apps on the 4th day so that's why the battery graph when down faster.
The firmware on the Galaxy Ace is v2.3.4, the latest beta installed with Odin, and I had to select the English language from some Eastern European language which was a bit perplexing.
Anyway, Wifi setting was off after screen off with Google Sync on.
The battery was in no wise empty when I took the screenshot.
Looking at the graph I was losing about 10% a day !!! so I reckon without using the phone at all, just in standby, you could get 8-10 days standby.
But what's a smartphone if it's to be left on standby?
My very old motorola basic phone could last 7 days with usage of messaging. I'd say that a phone has good battery life if it meets entertainment/connectivity demands and could still go on >2 days which few phones can...

[Q] Battery life issues

Hello
I've been having some battery problems with my sgs2. I've bought it in june of 2011, it is my first smartphone and I was immediately pleased with it. great phone, everything working properly. since it was my first phone I was a light user and the battery could last me 2 days, sometimes it even got to last 3 days. However, at the beginning of the year I felt a sudden drop in battery performance, coming to last only 12-15 hours with light use. by this time I became more of a medium-heavy user and under "normal" use the phone would be dead at 10 hours, maximum.
I bought a new battery, official samsung 2000 mAh, and the performance became slightly better. It would at least last a day of work, but the performance was never as good as the original 1650 mAh battery when I first bought the phone.
by this time I began experimenting with ROMs, ressurection remix, miui, and now pfittech. but as time passes the performance is always dropping and today something strange happened. I locked my phone at 17% of battery, and after a while I checked it and the battery was at 18%. I checked again and is now at 19%. Right now it's 21%. What the hell?
can anyone help me? any help would be much appreciated.
p.s. i've tried calibrating the battery and I've read in the forums that on JB it's not necessary because the phone now clears battery stats when they reach 100%. I've also changed the stats with extweaks to absolutely no effect. I've been reading many topics on this but nothing quite seems to fit my situation.
mate u have to reset gauge in extweak then kill ur battery and pull off for 5 min then charge that should do
Sent from my GT-I9100 using xda premium
stopro said:
mate u have to reset gauge in extweak then kill ur battery and pull off for 5 min then charge that should do
Sent from my GT-I9100 using xda premium
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Click to collapse
Thank you for your advice I will try that. I'll let you know if it works. btw, when you say kill the battery you mean let it drain to zero right? sorry if dumb question, I'm a newb at this hehe

[Q] Baterry after 2 years usage

Hey guys, I'm new here and this is my first thread...
So I just bought an used HTC One X+ from a guy who sold it after 2 years of usage.
Phone is in perfect conditions, and I really like it, but only the battery is draining too fast. Especially when gaming: I played Temple Run 2 for 15 minutes, and the phone went from 25% to shutting off, because the battery was empty. Using other applications is just fine, I'm now 12H 12M on battery and there's 18% left.
So my question is: Are here some others who had this device for 2+ years, and how is your battery life on the HOX+?
Do I need to replace the battery, or is this just a common problem? Or is this just an software issue?
I'd like to hear from you guys
dave7698 said:
Hey guys, I'm new here and this is my first thread...
So I just bought an used HTC One X+ from a guy who sold it after 2 years of usage.
Phone is in perfect conditions, and I really like it, but only the battery is draining too fast. Especially when gaming: I played Temple Run 2 for 15 minutes, and the phone went from 25% to shutting off, because the battery was empty. Using other applications is just fine, I'm now 12H 12M on battery and there's 18% left.
So my question is: Are here some others who had this device for 2+ years, and how is your battery life on the HOX+?
Do I need to replace the battery, or is this just a common problem? Or is this just an software issue?
I'd like to hear from you guys
Click to expand...
Click to collapse
I've had this phone for almost 2 years and battery life hasn't changed. From day 1 I got about 12-15 hours on a full charge..

Battery life

I wanna buy the phone and I just wanted to know 2 things.
How much hours of screen on do you usually get?
Does the cpu degrades over time? I have heard that new mediatek cpus are much worse than snapdragon ones.
elcreepyFP said:
I wanna buy the phone and I just wanted to know 2 things.
How much hours of screen on do you usually get?
Does the cpu degrades over time? I have heard that new mediatek cpus are much worse than snapdragon ones.
Click to expand...
Click to collapse
For me: 3 days of use.
Today I charge the phone between 09:00 and 11:30 a.m. up to 100% and now at 21:24p.m. it still have 77%
I have the umidigi f1 2 weeks ago.
//Removed post. *Misread topic.
2-3 days easily, even with heavy use. I've gotten well over 12 hours of screen time in some cases (tho i usually have my screen at medium brightness), though usually I charge the phone at night if I'm under 40% before bed.
I used to be battery conscious with other phones but this one I've just forgotten about battery life completely because i usually will have enough battery for whatever i need at whatever time of day.
I've had the F1 for about 2 months now. I get about 3-4 days on regular use with wifi/blutooth on. My screen is set to auto for brightness. As posted above, I charge it when it goes to 40% or less.
Plug it in overnight, it charges from 11pm to 5am.... The battery life is WOW...alot better than my wifes galaxy or an Iphone I used to have....
I've had the Umidigi since January 2019, like others here have responded, I usually easily get three days out of the battery. Today is a typical day, taken off charge today at 6am, now 12 hours later after a business day's use it is still at 84%
I've not noticed the cpu slowing at all, it is just as snappy now as it was when i received it 8 months ago
elcreepyFP said:
I wanna buy the phone and I just wanted to know 2 things.
How much hours of screen on do you usually get?
Does the cpu degrades over time? I have heard that new mediatek cpus are much worse than snapdragon ones.
Click to expand...
Click to collapse

Question Battery Life after...

I was wondering how the battery life of the note 10 evolves over time.
I've been using the phone as a daily driver over one year now.
And it took the battery almost exactly 1 year until I noticed a sudden degrade of the battery life. I made sure it's not some bad apps. It's rather the voltage dropping earlier now.
I've been using lineageos from the beginning, so I already used a pretty efficient rom that has no bloatwore or the like.
The first half year a full charged battery lasted at least 3 days, sometimes even 4 days (Like: having 75% battery after day 1, 50% at day 2, etc.) And I've been using my phone pretty much all day long.
last month (about the 1 year used mark) I noticed a degrade in battery life. I didn't change my ROM at that time. I was using the same ROM and apps on which the battery lasted 3-4 days before.
Then in just about a few days, the battery began to last 2 days at best. Now it's like having 50-60% battery after Day 1 and I'm going to charge the battery at least every 2nd day or even every day if I'm sure I need much battery the next day...
Now I wonder how this is going to develop over the next months.. will it get much worse? does it stagnate at this level? I'm already thinking of a replacement battery if it becomes much worse soon. But changing battery might be a risk so I'm still waiting.
What's your experience so far? How long and how much have you been using the phone and how has the battery evolved so far?
Can't really say I got the same experience, since I got the phone it would last 2 days and a half with light usage, and 1 day with heavy usage on Android 11 MIUI. And by light usage I mean using it more in the morning and at night, where screen brightness could stay low. Also keep in mind I had the phone for an entire year with this set-up.
But since I changed to LineageOS and Android 12 I noticed the phone barely last 2 days with light usage, it's draining faster while on usage, but in comparison screen off time seemed to greatly increase.
My issues with the battery life on the device seems to stem from the OLED Screen being more I guess susceptible from small amounts of sunlight? On my old LCD phone I could use the same brightness level for every indoor situation, while with the Redmi Note 10 I need to constantly readjust it throughout the day based on the room i'm in.

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