My Samsung Tab S 8.4 LTE (SM-T705) is 4 years old. Since the battery only lasted 2h 30m, I went to Samsung to change the battery.
But they refused to do so as they said, their diagnostic tools told them that the battery was fine, but the Motherboard needs to be changed. I believe there are 'some' truth to that as the Tab did had flickering, random booting happening a year ago (but did not occur anymore for some reason). But Mobo replacement is expensive, with a short warranty. Not worth it.
So I went to change the battery at another shop. The battery now lasts for 6 hours on Youtube (nonstop). Not that satisfied, but at least performs better (and also I can't remember how the original battery performs 4 years ago).
Problem:
1) When charging to 80% (Switched ON), the meter went from 81% to 100% in less than 5 minutes @[email protected] But when I unplugged and use it, the tab discharged at a normal rate (no sudden jump-drain).
2)Charging when the tab is off, it charged at a normal speed from 0% - 66. Then it gets slow as if it was 'trickling' and get stuck at 69%. Wait long enough and it will jump to 100% all of the sudden. Again, when using it, the discharged rate was normal.
So, does this mean the battery is faulty or just that the Motherboard is about to 'die' on me?
I would get the shop that did the replacement to fit another battery as there is definitely something wrong.
John.
EmeraldTeressa said:
My Samsung Tab S 8.4 LTE (SM-T705) is 4 years old. Since the battery only lasted 2h 30m, I went to Samsung to change the battery.
But they refused to do so as they said, their diagnostic tools told them that the battery was fine, but the Motherboard needs to be changed. I believe there are 'some' truth to that as the Tab did had flickering, random booting happening a year ago (but did not occur anymore for some reason). But Mobo replacement is expensive, with a short warranty. Not worth it.
So I went to change the battery at another shop. The battery now lasts for 6 hours on Youtube (nonstop). Not that satisfied, but at least performs better (and also I can't remember how the original battery performs 4 years ago).
Problem:
1) When charging to 80% (Switched ON), the meter went from 81% to 100% in less than 5 minutes @[email protected] But when I unplugged and use it, the tab discharged at a normal rate (no sudden jump-drain).
2)Charging when the tab is off, it charged at a normal speed from 0% - 66. Then it gets slow as if it was 'trickling' and get stuck at 69%. Wait long enough and it will jump to 100% all of the sudden. Again, when using it, the discharged rate was normal.
So, does this mean the battery is faulty or just that the Motherboard is about to 'die' on me?
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Click to collapse
battery is at fault if it gets old enough , the flickering and rebooting is caused by a loose battery connector on the motherboard. soldering and strengthening it fixed the problem for most people i found posted on their forums ,
i personally haven't tried it yet as i just replaced my battery after the original one died this 2021, replacement battery is 6 months in and the problem i'm having with the flickering is coming back.
Related
I bought my Gnex from Handtec at the end of November. I have been very happy with it Until 2 weeks ago. Battery life has not been great but has lasted 16+ hours each day and I always charge overnight so this has not been a problem to me.
I take phone off charge at 7am. A couple of weeks ago I started to notice that instead of 50% at 7pm it was showing only 20 to 30% charge.
I bought BetterBatteryStats which showed no WaveLocks.
I started to freeze apps using Titanium Backup.
The battery life did not improve. I noticed the phone was getting noticeably hot to the side of the camera and charges were taking much longer. Instead of 3 hours it was taking longer than 7 hours.
Last weekend I noticed a drop of 70% in 3 hours on 2 occasions.
So I decided to wipe the phone and install AOKP build 15 with Franco kernel 10. I did not re-install aps. I charged he phone after install which took all night and then reset the battery stats.
The phone has continued to be hot and discharge very quickly. Charging is very slow. If the phone is off - charging appears to be even slower or not take place at all.
My Gnex is now fully discharging in less than 5 hours when idle in flight mode and is always very warm without any use.
I have been using a Samsung galaxy s2 wall charger.
Is this likely to be a faulty battery or phone hardware fault.
Any suggestions for next steps or is it a Samsung repair job.
Thanks
Mke
well, whichever it is, it sounds like a hardware problem that should be warrantied. i would flash it to stock and get it repaired by samsung, or see if the place you bought it will take it back
I get a similar problem but i return it back to vodafone 2 days ago and now waiting for the results, i returned it a week ago and they only give me a new battery to see if that will solved the problem but nope it persist, now they too it for either repair or replace ....
mike_m said:
I bought my Gnex from Handtec at the end of November. I have been very happy with it Until 2 weeks ago. Battery life has not been great but has lasted 16+ hours each day and I always charge overnight so this has not been a problem to me.
I take phone off charge at 7am. A couple of weeks ago I started to notice that instead of 50% at 7pm it was showing only 20 to 30% charge.
I bought BetterBatteryStats which showed no WaveLocks.
I started to freeze apps using Titanium Backup.
The battery life did not improve. I noticed the phone was getting noticeably hot to the side of the camera and charges were taking much longer. Instead of 3 hours it was taking longer than 7 hours.
Last weekend I noticed a drop of 70% in 3 hours on 2 occasions.
So I decided to wipe the phone and install AOKP build 15 with Franco kernel 10. I did not re-install aps. I charged he phone after install which took all night and then reset the battery stats.
The phone has continued to be hot and discharge very quickly. Charging is very slow. If the phone is off - charging appears to be even slower or not take place at all.
My Gnex is now fully discharging in less than 5 hours when idle in flight mode and is always very warm without any use.
I have been using a Samsung galaxy s2 wall charger.
Is this likely to be a faulty battery or phone hardware fault.
Any suggestions for next steps or is it a Samsung repair job.
Thanks
Mke
Click to expand...
Click to collapse
I am on the same build and recently used francos kernel. At night the phone would drop 20-30% of battery on airplane mode. Installed the apex build 5 kernel and all the battery nonsense stopped straight away. It seems to be a great kernel especially with AOKP B15.
Hope that helps.
still running stock. battery dropped from 100% down to 0 with 1hr 27mins screen time. decided to turn it off and then try a charge. to my suprise was at 43%, i unplugged it and then now i am playing a movie on silent just to kill the rest of the battery, going to see if i can force a re-calibrate that way i intend to wipe it after.
i have emailed samsung support, lets see what they say, luckily i didnt break the 0x01 with the custom roms. i have my oneplus to play with custom roms, i use this purely as media consumption device, the 4g is handy too as i sim to eat. going off the subject now.
i hope to get more then 2 hours screen time once its all fixed. the wife is using the nexus9 i got her and when she picks up my tablet the battery just dies! shes getting over a day with her tab constantly on hayday! just 10mins of hayday earlier took the batt from 50 down to 11.
its got an issue for sure. i mean how would it charge from 0 to 43 in 2 seconds! haha
Its best for you to return it. Your supposed to get atleast 6-8 hours screen on time. You probably have a defective battery/connetor. All the best!
If you have a lower amp power adapter you
Could try to recharge with that ( 500 mah, 1000 mah) until 100%. Use your tablet until shuts down on her own, repeat the charging with this method 2 or 3 times. Maybe is not the connector is the battery calibration. I resolved my similar problem with this method ( i have now 4,5-6 hours of screen on time and no problems with battery %. Good luck
Hello, a couple of months ago my battery started dying on me so I went to Samsung to get a replacement (my tablet is still within warranty). Despite the fact that my Knox counter is triggered they've changed my battery as well as my tablet's motherboard (don't know why). In the first few weeks I would get quite good battery 7-8 hours of Screen on Time, so far so good.
In the last month or so -though- I'm starting getting quite worse results. The battery leak while sleeping is 2% every 8 hours, so I'm great there too (amplify + greenify work miracles), so the only thing that I can think is that the battery has started dying again (already?). I've let my tablet reach 0% and shut down on its own. Then I booted into recovery and let my tablet on with full brightness for another hour until it was finally off. That's *one hour on* with full brightness!
It seems obvious to me that that's a calibration issue. I deep cycled my battery (twice!), but the results persist (battery is 0% after 5.30 hours of SoT, an additional hour of full brightness is needed until my battery is really depleted). I've made the calculations and found out that if I could actually use that extra hour of full brightness, I would still get 7-8 hours of SoT.
What happened? Why is my battery suddenly got itself "decalibrated" and why does deep cycling (or deleting the battery starts) never works? I think that I should get my tablet back to Samsung again (it's still within warranty), but I would prefer not to as it'll take another 2-3 weeks (again!) to fix it and I'd much prefer to have my tablet in the meantime. So do you have any quick and dirty method to get my 2 hours back?
BTW I know that 2 hours less of screen time , sounds little. But it's exactly the amount of time that deems whether I should charge my battery twice or once every day (yeah I use my tablet *that* much, as it also doubles as my laptop on the go)
Context:
My dear LG G4 started having some battery issues this summer: it would sometimes turn off at around 15%, usually if I tried using the camera app. It would turn back on, at <10%. Left idle, it would actually increase the battery %.
About 1 month ago (maybe a bit more), the problem started to increase: it would turn off at ~40% - but not always, rarely. Last week, this happened everytime. Sometimes it would turn on back with ~5%, sometimes with 30%. Anyway, weird behaviour.
So I decided to buy a new battery. Can't be sure it's 100% genuine, but reviews say it should be fine (looks 99% like the old one).
Hoping it would finally solve my issues, I put the new battery in the phone. 5% charged - well, it's new, ok, np -> charge it to 100% and then go out to lunch.
The drain was awful, in less than 30 minutes it was at 75% (moderate usage at most). When it hit 74% it turned off. Problem is, this won't even turn back on. Got back to the office, plugged in charger - battery still reported 74%, phone turned on. Disconnected the charger, 1 minute later, phone turns off.
It's like when it hits 74%, it stops working.
Any ideas? Phone is still in warranty for a month, but not sure if this kind of problem is covered.
It's also my second G4, first one was replaced due to bootloop in summer 2016.
Download Accubattery app from Play Store, for the old battery , check it's health, repeat for the new battery.
My 2.5 year old LG G4 still has bad battery life because you know the SD 808 heats up quickly specially on hot summers or while charging, the battery's no1 enemy would be heat! So with the help of the app , I found the battery health had depreciated to 69% of it's 3000 mAh (that is 2069 mAh ) If your battery is new , I think your battery health should be 90%-100% in the Accubattery app!
Buy a new battery its done
Very odd ever since the phone died since it was really cold out ( i left it in car for a few seconds and looked at my phone and it was dead ) its been shuting off or dieing around 10% left but drains normally. but can still turn it back on once its plugged into a wall charger. so im not sure on what to do cause i mean i only had it for a year now.
it happens with mine too, 2-3 weeks ago.
I had 40%+ and after few sec, was dead too.
I turn it on with 1% battery lol
was thinking of letting it die once then letting it cable charge not fast charge saw a video for an older phone to do that with some call code to reset the battery gauge
Xnitro67 said:
was thinking of letting it die once then letting it cable charge not fast charge saw a video for an older phone to do that with some call code to reset the battery gauge
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Click to collapse
I have the same problem since a few weeks.
The percentage drops from 15% to zero.
Mine was a bit different, I was in 13% and then when I plugged in the cable to charge my phone, it showed I was actually in 6%. My friends, our phone is aging
Since it became cold outside I'm having the same problem
Yes
I had this problem with my Galaxy A5 2016 and now with my Galaxy S9...
Never go under 10% if you can't charge within 1 minute or better less. That's why I have a battery case.
So I think I fixed mine a video is for a note 4 ut I think it worked for mine also. Make sure your phone is almost dead and turn off fast charging then go to the phone dial up (built in app) and dial *#0228# and click the quick start (this will restart your battery gauge) let it die then charge to full might take longer but it's worth it.