Accessories Battery life

[Deleted User]

My battery has been losing performance over the last couple of months and doesn't last anywhere near as long as it used to. Sometimes it can be on say 25% and then all of a sudden it goes down to 2% and switches off. Sometimes if I take the battery out it will go from a previously stated 25% to say 50%.

I came across this website to recallibrate it
https://www.androidpit.com/how-to-calibrate-the-battery-on-your-android-device

But before I carried out the steps I had to let it run right down, and it actually stayed on 1% for far longer than it ever has done, to the point I actually managed to use it for quite a while before it died. When it did finally die I plugged it in to charge. It seemed to take many hours to even get to 90% charge. When its switched on I can go from say 10% to full in about 90 mins. Yet like I say it took forever yesterday. Anyway when I got home last night and it had been fully charged, I switched it on and left it on until this afternoon. It got down to 14% and then switched off. Then it wouldn't power up. So I plugged it in to charge and started at 14% and seems to be recharging far quicker than yesterday even though it is again switched off.

Is it time to buy a new battery or is the callibration just not working? As of now, to be fair I haven't checked to see how it performs as it is still charging and I shall leave it for a few hours before switching it back on. But it is always very irregular with percentages and dying.

Thanks in advance

 

[El Presidente]

Personally, I think the article is a load of nonsense (putting it politely).

I could be completely wrong, but all this battery calibration stuff was debunked years ago.

I don't suppose there's any harm giving it a go, but from experience with the symptoms you're experiencing, it generally means your battery is bad or there's some other hardware issue with your phone.

 

[Engjoseph]

The truth about batteries is that it got degraded withe time, and when using heavy applications causes more charge and makes it lose more capacity

 

[Jhayzone]

Just buy a new battery. It obviously starting to degrade and fail. I don't really believe on this calibrating thing since but that is just me. You will always get a different battery performance every time you removed it from your charger because of so many reasons and the degrading of battery is inevitable.

 

[Fox Mulder]

You haven't told us what device you have, how long it's been in service and whether it's the original battery. But most likely the battery is at the end of its useful life.
If the battery is removable, take it out and check to see if it's swollen. If it is, even slightly, that's a sure sign that it is shot.

 

[Deleted User]

You haven't told us what device you have, how long it's been in service and whether it's the original battery. But most likely the battery is at the end of its useful life.
If the battery is removable, take it out and check to see if it's swollen. If it is, even slightly, that's a sure sign that it is shot.

Sorry, its a Note 4 that I have had a little over 12 months and it is the original battery

Cheers

 

[El Presidente]

Unless you've been using it constantly, letting the battery die, then charging it fully almost daily, your battery should still have plenty of life in it then.

Try a replacement battery and if it still behaves erratically, it could be an issue with the phone itself.

 

[Deleted User]

What hasnt helped in the past was i used it daily as a sat nav for work and it was always plugged into a charger. Im going to see how i get on now ive tried that possible solution and if it doesnt work a new battery will be the way forward

 

[Fox Mulder]

Okay well eyeball it for swelling as I suggested. If the battery looks like it's pregnant it's definitely time for a new one.
I recently replaced the battery in my S5 after almost a year of use. It had lost some capacity (although not as much as yours) and was visibly swollen.

 

[Deleted User]

I will have a look in at some point tomorrow.

Cheers

 

[Stuntman]

You can replace the battery on your Note 4. I suggest you do so. It sounds like the battery has gone bad to me. Definitely check to see if the battery is swelling up. If it is, replace the battery.

 

[Deleted User]

I've just checked it and there is no swelling. It powered off at 7%, plugged the charger in and switched it and it was on 18% almost instantly. Definitely buggered!

 

[Slug]

Personally, I think the article is a load of nonsense (putting it politely)

There's actually a grain of truth hidden in there, but it's hard to see amongst the other (frankly) terrible advice. The BatteryStats file can become skewed and inaccurate under some circumstances; it was common practice with the Galaxy S2. for example, to 'reset' it when flashing custom kernels.

However advice such as "Unplug your phone and restart it. If it doesn't say 100 percent plug the charger back in until it says 100 percent on screen" and "Now, let your battery discharge all the way down to 0 percent and let your phone turn off again" shows a fundamental ignorance of how li-ion batteries, or indeed modern smartphone charging processes, work.

 

[AZgl1500]

battery Calibration is a myth... pure and simple.
what small grain of truth there is, is a hold over from NiCad batteries.

Lithium-Ion batteries will last forever, if properly recharged in a reasonable amount of time.

The manufacturers suggest that you recharge at 40%, and more often to keep them in the higher range of charge.
It is not the frequency of recharging that kills the new batteries.

It is the Severe, depletion of charge down to 10% or less that kills a Lithium-Ion battery.

My current device is also a Note 4, on the OEM battery, and it does quite well....
at 100% and not being used overnight, it is still at 98% or more when first unlocked the next day.

If it is not used at all during the day, in the late evening it is still in the up 95-96 percentile range...

When I do a lot of Facebook browsing, or forum use, it drops down of course.... but rarely below 40% by dinner time.... which is around 4 PM for me.

It will easily give me two days of moderate use....

if your battery is as bad as you say, just get a new one and move on.
then take care of the new one... keep it in the upper half of full charge....

there is an old saying related to automobiles..... the "top half of the tank" runs just as cheap as the "bottom half of the tank"

but for batteries, the top half is a LOT cheaper than the bottom half, because you never have to replace a battery that has always run on the "top half of the tank"