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Battery problems on Samsung Galaxy Note 4

I have a Samsung Galaxy Note 4 which is about 2 years old.

Recently I have had issues with the battery. I will be using the phone and it will just switch off; when I switch it back on it says the battery has still got a reasonable amount of charge, 25% or more; today it switched off at 41% even.

I am wondering whether the battery has some memory but have read online that Li-Ion batteries don't suffer from this; I would have accepted the memory issue as the phone does go on a charging stand every night no matter the level of charge left in it.

So I am stumped as to what can be causing the problem. On occasions I can put it down to particular apps that are very resource intensive; high graphics games, use of graphics, location and mobile data, etc etc.

On an Android forum I found a routine for re-calibrating the battery meter but this says to allow the battery to reach 0% before full recharging; the problem I have with that is that it never goes that low before switching off.

I have also seen posts with instructions for clearing the cache using the three button power up (Power, Home and Volume buttons) method. I have done this before but if I try that again I just get a screen asking to confirm whether I want to install an alternative OS, to which I say No and it just reboots as normal.

Does anybody have any other suggestions?

Thanks
Rob H

fred hakim

I had a similar issue with my note 4. Seemed like a battery issue to me too. Never could find a solution, but found it was still under warranty so I replaced it for $5 shipping. Not sure how long your warranty is, but its worth checking into.

SOLUTION

Tom Cieslik

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Kimputer

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Rob Henson

ASKER

Thanks for all the pointers, I won't be able to try anything until the weekend as I need the phone during the day on weekdays but can manage without at weekends. I have a portable charger to keep me going in the meantime.

Thanks
Rob

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Jackie Man

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Natty Greg

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Jackie Man

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Rob Henson

ASKER

Succeeded with three button reboot to clear cache, I was doing Home, Power and Volume Down; should have been using Volume Up.

So cache is now cleared, managed to drain to almost 0% and recharged while switched off. So far so good, lets see if it helps.

Jackie - which flavour of Facebook app are you quoting, the one from Samsung Apps or from Google Play store? I do have Facebook and do use it fairly regularly; I do check fairly frequently what Apps are open in the background and do a Close All, maybe doing that doesn't do a full App close.

Thanks
Rob

SOLUTION

Jackie Man

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Rob Henson

ASKER

Thanks to all of you for the helpful comments.

Re-calibrating the battery didn't last long; did that last week and at the weekend it switched off at 41%.

Haven't tried a factory reset yet.

Looks like it is going to be a new battery!!

Regards
Rob