[Q] Terrible battery life (Tab 4 10.1") - General Questions and Answers

Hi,
So my sister came to me day complaining that her battery goes flat real quick in her tablet. I explained that if she didnt take care of the battery it will get worse (well faster than normal) but this is only a 3-4 months old samsung tab4 10.1
that's a typical usage pattern . So am I right that this constant charging is what is killing the battery?

Related

Battery XE vs Galaxy S2 - can some1 comment?

Hi all,
I have a Samsung Galaxy S2 from work, have had it since summer. Got the Sensation XE for private recently and been having a feeling it's consuming the battery well faster. After making some searches and reading some I purchased one of those Anker 1900mAh batteries, got it yesterday and charged it up. I then had both phones lying on the table, screen off doing nothing. About 2-3h later the Samsung was at 98% whilst the HTC was at 87%!!!
I decided to at least restart the HTC and after the restart it showed 88%. I then left them over night, more or less 8 hours - right now the Samsung is at 90% and the HTC at 74%.
Now I know that batteries don't reach their top performance immediately but require a couple of charges first, but how do these numbers sound to you guys? The 13% drop within the first 2-3h was scary and ridiculous, but the overnight loss seems reasonable yet still far worse than the S2. And this is with the Anker battery, not the original.... the Samsung is rated at 1650mAh only.
I've not done this test with the original battery yet, it seems that it kept it's charge better than the Anker though - although on the other hand it had a tendency of staying at 100% for quite a while then dropping faster. Is there some procedure to calibrate/reset battery perhaps?
Cheers
//Joris
You could let the battery of XE die and recharge it back to 100% for a few times. If you are rooted be sure to clear battery stats first when you battery is fully charged before doing the above procedure.
Somehow i've been getting rather great battery life with Anker. Probably only losing around 5% when left overnight. Did you clear battery stats when trying out Anker? That may be the reason why the battery life seems poorer as compared to Galaxy S2.
Sent from my Sensation using Tapatalk
Hi m8,
cheers for the reply - I do not currently have the phone rooted and, as a matter of fact, would like to keep it that way. Was looking into the wipe battery stats/resets but all I did find related to rooted phones. Guess there's no way for a non-rooted?
It's currently down to 32%, the Samsung is at 70%. That said the HTC has had some light use whereas the Samsung has been sat in my pocket all day, doing not much more than pushing work email and some syncing.
Was thinking to plug it into charger now but better to wait till it's nearly dead? Or even till it shuts itself off?
Sense is a resource hog so that is where probably the majority of your power is going, take a look in the phones battery settings
Had it on charge over night (phone switched off), unplugged it around 7 this morning, so approx 7 hours ago. It's now at 92% with some light use, which is quite impressive - if it's "true" (I'm expecting that battery level is going to drop much faster during the day than it did this morning, when it was at 100% quite long).
Right now it's showing:
34% Screen
34% Phone idle
18% Phone inactive
10% Phonecalls
4% Camera
Not sure that's actually since last charge though, as I've no recollection of using camera at all :/
*edit*
whilst posting this and having screen active it dropped to 90%... so let's see how it is going to hold up during the day...

changed battery, cooler, faster, longer.

Recently changed my battery for no real reason but the fact that I had another fully charged and couldn't be bothered plugging phone in.
So off for the rest of the day I went, noticed instantly that battery was lasting longer. At 60 percent I had exactly 2 hours screen on and by the end I had gotten well over 4 hours. My old battery used to get that but after update to 4.3 I was getting less (approximately 3 hours). Getting less battery time after the update was normal to me as not many people know that from 4.2.2 to 4.3 samsung removed the brightness reduction profile used in specific apps like chrome/browser to conserve battery (80% of full brightness setting). This was done to get battery life points at release date.
On top of that I noticed the phone was cooler and more faster, this however was not major just a more stable sense of feel.
Now the point of this post is to find out why, now I know there are issues with batches of battery's but unsure of its implication.
Another possible theory is faulty battery causing higher heat output and power loss which could also have at times caused throttling of phones performance to prevent damage (which we all know it does, quick example is using phone heavily while charging)
What you people think
Battery Very HOT!
I am pissed at Samsung. My phone nearly burned a hole in my pocket and lost its juice inless then 30 minutes when it approached 30% battery. I went to the battey tab and took a screenshot of its discharging curve! No surprise! The battery was hot and lost nearly all of its power in less than 15 minutes. I have yet to take it to Samsung to get a new battery before it catches fire!
Any recommendation on how to prevent that from happenening?
Michael Ceitlin
SG4-I9505 4.3
MCEITLIN said:
I am pissed at Samsung. My phone nearly burned a hole in my pocket and lost its juice inless then 30 minutes when it approached 30% battery. I went to the battey tab and took a screenshot of its discharging curve! No surprise! The battery was hot and lost nearly all of its power in less than 15 minutes. I have yet to take it to Samsung to get a new battery before it catches fire!
Any recommendation on how to prevent that from happenening?
Michael Ceitlin
SG4-I9505 4.3
Click to expand...
Click to collapse
Buy a other battery, you can get one cheap on ebay (Don't buy one that is really cheap, they are mostly ****ed up) :highfive:
MCEITLIN said:
I am pissed at Samsung. My phone nearly burned a hole in my pocket and lost its juice inless then 30 minutes when it approached 30% battery. I went to the battey tab and took a screenshot of its discharging curve! No surprise! The battery was hot and lost nearly all of its power in less than 15 minutes. I have yet to take it to Samsung to get a new battery before it catches fire!
Any recommendation on how to prevent that from happenening?
Michael Ceitlin
SG4-I9505 4.3
Click to expand...
Click to collapse
That isn't the battery's fault; there is something on the phone that is using up 100% CPU (explaining the heat and rapid battery drain).
yuuuuuuuu said:
That isn't the battery's fault; there is something on the phone that is using up 100% CPU (explaining the heat and rapid battery drain).
Click to expand...
Click to collapse
Agreed. Although, the battery could be the start. My phone gets extremely hot. I check the CPU usage and it's being occupied no matter how many times I clear the RAM.
If I'd be you, I would start from the battery callback... I would look if my battery is not swollen, if its serial is starting with BD...
but, it is me. I have a strange behaviour to start from looking if similar problem occurred for someone here in the past...

Brand new battery drained under 4 hours. Moderate usage.

Hi,
Recently I have been experiencing issues with battery drain, which was typically drained in less than 10 hours. Therefore I have bought a new brand battery (the old one was about 1.5 years old). However, today it was drained in just mere 3-4 hours. I have used my phone to place three calls, used Chrome browser for a few minutes to google up some numbes and that was it. Nothing like playing games. The phone was recently restored to stock, so there are not that many applications installed either. Battery reports attached.
What in the world could have drained the battery so fast?
P.S. I use Samsung S3 (GT-I9300) with Android 4.3, rooted.

Recently bought the s7 and noticed its quite hot and battery drains quite fast

So i recently bought the galaxy s7 and noticed that my battery drains faster than it should. it also gets quite warm most of the time. i tried a ton of fixes that didnt help and was wondering if anyone can help or has the same problem. i did find out that snapchat was overheating my phone and taking up a lot of battery but even when i shut that down it still seems to drain fairly fast. would be great if i could get some help on this. thanks
Charge it to 100%, use it until it completely depletes the battery. Charge again to 100%. Deplete. Do this for the whole week. This is recommended for any new smartphone battery.
I just bought two S7 Edges. All apps, etc, are configured the same. It's been a week now, and one phone is at 40% at the end of the day while the other is almost dead. The 40% one went through the 100-0% procedure since the day it came out of the box. That's a huge difference. It does work.
As for the heat, I can't say. Neither one of the one's I have overheat.
The S7 has a tiny copper heatpipe inside that wicks the heat to the metal frame of the phone. It's especially noticeable whole charging. From all accounts this is normal.
As for battery life, mine was awesome until I received the April ATT over the air update.

Battery Issues Continued

Okay I have N915A (AT&T) and been having battery issues for about a year. I figured I'd wait to see if Marshmallow fixed the problem and it did not. I have bought 3 "OEM" batteries from 3 different sources and all result in similar outcomes. Initially my phone would die as early as 70% and reboot with ~2% battery life and die again. After replacing the battery, it improved to around 30-40% until same result. The third battery (current), it happens anywhere between 10-30%.
Anyone else having these issues?
Battery stats are attached for today's usage.
I have had a similar issue with the original battery and now with the replacement. Whenever I have 15% left or less, it will immediately shut down.
Sent from my SAMSUNG-SM-N915A using Tapatalk
Mine always died during 15%, did a cache delete, it did solve for a while, now shut down at 12%, it is said that it's a mm issue, not flashing the battery status well.
Sent from my tblte using XDA Labs
I went through the same thing with the battery issue. I came from KitKat, upgraded to Lollipop. I was fine for couple months and got hit with the battery drain. Downgraded to KitKat and waited for Marshmallow upgrade while dealing with huge battery drain. Marshmallow came and was excited. Upgrade to Marshmallow and a month into it, battery drain showed up again. Did a complete factory reset and back to KitKat again and still dealing with battery drain, but not as bad before. I can still manage to get it drain to 15% before it starts rebooting/boot loop. This is the best I can get without buying a new battery.
And I was eagerly waiting for the Note 7 exploding fiasco to be fixed so that I can upgrade to a new safe Note 7, but that too ended quickly. There is no new phone I am that excited other than the LG V20.
I'll just keep the Note EDGE for the meantime and deal with the battery drain. I have a huge Anker 26800 Powerbank I purchased to keep the Note Edge chugging along on the road.
before I lose mine previous note 3, kit kat was great, never had any battery issue, on note edge one thing I noticed the was last 15% to 0% is quite weak like it doesn't hold any charge or something
The batteries for this phone are absolute trash. I had 2 from day one and within a year neither would hold a charge more than a few hours. I replaced both and the new ones lasted fine for a month or so, but then they started having the same issue. They discharge very quickly, and anytime the battery drops below 35% charge, it could shut down at any time. Thought the Note 7 would fix this, but now I'm back on the Edge until I can bail to something else.
Can confirm. OEM battery died in 8 months. Bought used OEM batteries, have no problems with the phone switching off as such, but very poor battery life (dies in 6 hours of little usage) and overheating. The best I could do since Samsung refuses to manufacture these batteries anymore and the cheap ripoffs are horrible. I should have stuck with my entry level Asus zenfone, a third of the price and much much much more reliable.
Sent from my SM-N915G using XDA-Developers mobile app
Did you guys check the date of manufacturing? Gonna give anker brand battery a try when mine show signs of weakness

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