yashsingh1/xdaforums huggingface dataset:
[Galaxy Note GT-N7000 Accessories] underlines:
My two cents

First something about the used nomenclature:

You cannot charge a battery. No one can charge a battery. And you don't even have a battery in your Galaxy Note unless you want to buy a new one, every time it's discharged.

What you are all talking about is an accumulator.

Battery != Accumulator [3]

My two cents about this story:

Thera are just too many factors [1] if you try to "use your phone like every day" and measure the time your accumulator lasts. Values you can't compare. And of course a testing environment you can't use to make a decision about an accumulator.

It's easy phisics:

Q=t*I ; where Q = [Ah], t = [h], I = [A]

Therefore to make an empirical statement about the capacity of an accumulator you must fully discharge the cell at a fixed current, and measure the time it took and the capacity of discharge in mAh. [2]

No "battery" tester in the world can instantly determine the amount of charge stored in the cell. And of course not an app, unless it would constantly measure the time and current from a fully charged to a fully uncharged state (which afaik no app in the Play store is capable of).

My recommendation:

So use an empirical testing environment and testing procedure or please don't make any predictions or statements about the capacity of a non official Samsung accumulator at all.

Lit.:

[1] https://en.wikipedia.org/wiki/Ceteris_paribus

[2] https://en.wikipedia.org/wiki/Empirical_research#Scientific_research

[3] Poorly stated in the english version of wikipedia, hence many english speaking people use the wrong definition, so here's the german entry which has it's own section about it: https://de.wikipedia.org/wiki/Akkumulator#Batterie
[Galaxy Note GT-N7000 Accessories] beestee:
The app we are using here (Battery Monitor Widget Pro) approximates capacity by doing just as you say, calculating charge and discharge by measuring current vs time, but as you say, there is no way to monitor the battery with an app once it is unable to power the device, therefore it is approximate...but still roughly correct.

I am happy with an estimate that as far as I can tell is within 200mAh +/-.

Oh, and this from Dictionary.com:

bat·ter·y [bat-uh-ree]

noun, plural bat·ter·ies.

1. Electricity.

a. Also called galvanic battery, voltaic battery.

a combination of two or more cells electrically connected to work together to produce electric energy

.

And this:

That doens't mean that you are not correct, but it does mean that it is the accepted terminology.
[Galaxy Note GT-N7000 Accessories] panyan:
your definition is misguided - we are talking about the capacity/capacities of the cell(s) inside of the battery

the rest of the hardware that makes up the battery is irrelevant in determining the capacity
[Galaxy Note GT-N7000 Accessories] Mystic38:
dont wish to get in the way of your personal yack fest folks, but a battery IS an accumulator.. so you are both right on that..

my general comment (not to the folks above, but in general)

There are people here at XDA who actually have knowledge, skill and experience in electrical & electronics design..and there are many more people here who know software, (which is appropriate).. and then there are many many more who think( or say) they know one, the other, or both and aggressively opine on topics ..but frankly, they often don't have a clue

So, unfortunately it is up to the reader to attempt to determine hogwash from sanity... and in the area of batteries and battery charging there is waaaay more hogwash than sanity.

1. There are more fake advertisements for large batteries than real ones

2. If a 50% larger battery could be in the same physical dimensions, Samsung would have put it in the Note, or sell one as an accessory.

3. You simply cannot measure a battery charge capacity accurately with an app...you may be able to reasonably approximate it to say 10% or better by extrapolating from controlled experiments.

4. I sincerely doubt that even 0.5% of folks with battery monitor apps have executed such experiments

5. You cannot make objective judgements about capacity or battery life without controlled experiments..your "daily use" criteria is a fraudulent measure with no merit..

If you folks want to prove something.. provide hard data, after all, engineers have the saying "data talks, BS walks"
[Galaxy Note GT-N7000 Accessories] THFourteen:
whilst you are right in that people can't make objective comments, there is nothing wrong with subjective comments from users, and i for one find them useful.

I use my phone in a very similar way every day, charge overnight, use during the day for the same commute (spotify and reading), and checking emails every day (of a similar volume)

based on that and two weeks of use, i am able to say that i am not getting as much battery life now as i was when the battery was new, however i did also clarify that i am trying a new kernel now.

maybe you both don't want any feedback on batteries that is not mathematical, however there are a number of users (such as myself) who find it useful, so please don't tell people not to post just because you aren't interested.

at the end of the day, review sites such as engadget etc run battery tests in a non-mathematical way, run video for 9 hours, or just daily use and give their opinion.
[Galaxy Note GT-N7000 Accessories] newg:
I'm now on day 2 of the first charge of the gold battery. I'll need to charge it tonight, but it still has 25% or so left at 7pm on the second day. This is on par with my stock battery, neither noticeably better or worse.

I hope it improves with a few cyclings. If not, well at least I have a spare.
[Galaxy Note GT-N7000 Accessories] beestee:
...therefore it is relatively simple to deduce that when someone is talking about the capacity of a battery, they are in fact talking about the capacity of the cells or accumulators that are components of that battery and not the components that are irrelevant.
[Galaxy Note GT-N7000 Accessories] p107r0:
got mine from love2morrow, shipped from wherever they are to europe on 26th of April, ariived after 6 days, in addition I received 2 capacitative styluses for iphone (will have to find some use for it later)

the weight is exactly the same as of the stock batt.. ehrm... thingy = 50g,

waiting for it to charge, then will run non stop videos in plane mode to see how long it lasts to compare it with the stock one,

will report the results when done (could take few days if it's so good as the label says)
[Galaxy Note GT-N7000 Accessories] antonioeram:
Hi I have the flickering on the screen when it is close to 0% too . On the stock battery. For discharge I am using an utility called Fast Discharge.

I guess the flickering has something to do with the phone and not the battery.
[Galaxy Note GT-N7000 Accessories] choikugi:
I also finally got battery and the case I received before battery is actually gift from them. So I do not need to send back to case for refund or exchange :)

I sent apology email for my quick tempered judgement.

I will report back after I test this battery. It was 63% when I started to charge this battery. So far so good
[Galaxy Note GT-N7000 Accessories] underlines:
Exactly what I try to say with my two cents above, but compressed in shorter sentences :)

It's like your friend tells you:

"Hey, I run out of salary at the end of month even tho I'm spending an average amount every month"

Without exactly knowing what his salary is, and without exactly knowing his expenses. This is SPARTA! No, I mean this is USELESS!

You guys make statements (Z) on batteries where you DONT know the capacity (X) and you DONT know the consumption amount (Y).

X * Y = Z

where X & Y is unknown.

Anyone making statements about the solution of Z is Siddhartha Gautama himself or I'm the dumb guy and the solution is 42...

So let's finish this stupid posting of myself, and let the Buddhas guess their unofficial "battery" replacement capacity...
[Galaxy Note GT-N7000 Accessories] lastnikita:
Thanks !

One question left, and if I can't find anyone to answer it positively, I'll probably go for anker as it seems less expensive with (probably) similar results.

---------- Post added at 12:05 PM ---------- Previous post was at 11:46 AM ----------

You're a condescending boy, trying to push your point, which is part valid.

Let me put it SIMPLE for you:

If I eat many apples a day, and one day I only eat few of them, I don't have to count them to know something's not as usual, and I can easily state if I ate more or less. The same goes by for, let's say, fuel in your car. You can notice some strange behavior without calculating your consumption each and every time. You don't even have to know your tank capacity to notice a higher consumption, you can do it only using traveled km/miles and compare to usual.

Well it's the same story for batteries. One can state if it's more or less efficient than stock simply using instinct. Of course it won't be lab material, and this user can be wrong, but this possibility decreases with the number of users. Now you can understand why a forum is NOT a test lab.

Anyway, it may be useless for what you're looking for (numbers & stats), but it's not for many of us who are just looking after a cheap, good battery, which lasts at least as the stock one. And as you're not the only member of this forum (I'm sure you were already aware of this), please let other members discuss what they want, and open a "Maths are the way to go !!!" thread about your religion.

You need to enlarge your point of view, and start seeing things as others may see them, if not you're stuck into your own private world.
[Galaxy Note GT-N7000 Accessories] underlines:
Valid point. I already stop posting about this. And I understand that in the end it's not about scientific measurement, but about "how long will my Galaxy Note last for me?" :D

All we really want is an extended battery life for our Note.

I just remember that I read a lot of news headed like "Scientists developed a technique to build batteries which are 200x more efficient" in the past.

Not mentioning a particular technique, just all those ethanol, fuel cells or whatever stuff. But nothing happened since.

It seems to me, that the amount of energy consumption of new gadgets is inversely proportional to the amount of capacity new battery technologies provide. :( damn...
[Galaxy Note GT-N7000 Accessories] beestee:
There are lots of technologies emerging on this front because of EVs. If there were ever a time to believe that battery efficiency were being improved, it would be right now as it is a very lucrative business due to EVs needing more range. Sadly this also means that the tech probably wouldn't filter down into smartphones for at least a year or two, once the tech has been proven at large scale.

Here are a few recent examples:

http://www.ibm.com/smarterplanet/us/en/smart_grid/article/battery500.html

http://www.flintbox.com/public/project/9029/
[Galaxy Note GT-N7000 Accessories] p107r0:
3250 video running test result

finally finished testing the batteries:

conditions

: plane mode, dark room (night), non-stop video on MX Player, brightness 0, volume 0

batteries

:

1. stock 250mAh (weight 50g), after 2 months of heavy use

2. gold 3250mAh from lovetomorrow (weight 50g), after 1 charging cycle

running times

:

1. stock 2500mAh: 7:40:39 on battery

2. gold 3250mAh: 7:50:50 on battery -> 2% longer than the stock one, well within error margin

screenshots attached

PS. rerun of test in post 416
[Galaxy Note GT-N7000 Accessories] pepeto2001:
Ok, maybe you should wait 4-5 charge cycles for testing, if it lasts longer in the first one its a good starting point...
[Galaxy Note GT-N7000 Accessories] p107r0:
intend to repeat the test once the battery settles, yet I do not expect 30% increase in longevity, will post update once done
[Galaxy Note GT-N7000 Accessories] npras42:
Thank you. Finally someone has done a proper test. I bought this battery too from the UK ebay seller posted above and dont think it makes a noteiceable difference tbh.

Also, just to be a little bit nit-picking, you switched on Wi-Fi on the Gold battery test for the last hour or so which you probably shoulnt do.

thanks again
[Galaxy Note GT-N7000 Accessories] p107r0:
good catch,

well, it wasn't me, it was lama! - will remember to turn the events off next time,

usually my wifi consumes ca. 120mA in standby (can't find the reason) - this may be responsible for the sharp drop in final 15 minutes (ca. 4% of total time), but even with that I do not count of having anywhere close to declared capacity of 3250mAh once battery settles

still good price for a spare battery though
[Galaxy Note GT-N7000 Accessories] Bond@007:
Hi everybody,

I've receipt my Gold Battery (also with 2 stylus ;-))...

I wish test this one correctly amd i've Battery Monitor Widget Pro.

What i must to do for this ?

Since few day, my Galaxy Note shut down alone with my battery Samsung. During the night and with flightmode activated, the alarm for to wake up doesn't work ... i've this one 3 times since 1 month.

Sometimes, i see a big drop of my battery at the morning. During my sleep, nothing work on my Note with airplane ... i don't understand what's happening with this and how to repair this one ...
[Galaxy Note GT-N7000 Accessories] milsabords:
+1

And never do the test till it drains down to 0, that's a sure way to damage a Li-Ion battery. Instead, use a battery monitoring app to stop the player when battey level crosses 15%.
[Galaxy Note GT-N7000 Accessories] paris.gr:
Why shouldn't we use a battery until it reaches 0%? Just to make it last longer? If this is the reason then by stomping it at 15% you already make your battery last 15% less!
[Galaxy Note GT-N7000 Accessories] p107r0:
li-ion batteries generally last longer if you avoid deep discharges (there's informative wiki article on that)

it is also true that discharging the li-ion battery to zero may be destructive due to chemical changes afair, but if I'm correct batteries (or devices?) have built in circuits which prevent full discharge just to avoid the damage, so even if you reach zero, and your device shuts off, there's still enough juice left for it to recover

in other words frequent full discharges will shorten battery life, but occasional ones should not cause any serious harm
[Galaxy Note GT-N7000 Accessories] milsabords:
Use Google, there are lots of pubs on this subject.

About comparative tests, compare how long it takes to go from 100 to 15.
[Galaxy Note GT-N7000 Accessories] beestee:
This brings up something that I have always wondered about android but have never found a solid answer to. How does android calculate the percentage of capacity remaining? If you have been using, say, a 2500 mAh battery does android "learn" this capacity through several charge cycles to give a semi-accurate percentage remaining calculation? Or is this value stored in the system by the manufacturer as a default value for the stock battery that comes with a device?

Is this the purpose of the "wipe battery stats" utility that is available from recovery? If so, how many cycles would be required to calibrate android to a different battery, or is this even known? If Battery Monitor Widget Pro gives any indication, it seems that three full charge/discharge cycles can get us within 15% accuracy.

This even goes back to the discussions we have had here about how determining these capacities with an app might seem incredulous. How can we expect andriod to determine how to use the battery efficiently if that data cannot be determined from within the system? And with that logic in place, why couldn't an app have the capability of using these systems to extrapolate the same data on the device itself for the user to view?

With all of that out of the way...p107r0, did you "wipe battery stats" when changing batteries? I also think that one charge cycle is not enough, so if you plan on running it again, you might keep these two things in mind. Wipe batt stats, then go through at least one full charge/discharge/charge cycle before starting the test.

These batteries do seem to be all over the map in regards to how they are performing, but what can be expected for the price?
[Galaxy Note GT-N7000 Accessories] p107r0:
yes I did, yes I know, and I plan to repeat test after few days, yet as I said before, even after battery is settled, I do not expect significant increase in capacity
[Galaxy Note GT-N7000 Accessories] meomeo986:
Woow, this so be a great replacement as my OEM battery seems dying... Excuse me but is there any way to check real capacity of the battery?
[Galaxy Note GT-N7000 Accessories] paris.gr:
Hi. Please find below my stats using the gold battery. Eventhough the Battery Monitor can't give me a steady capacity estimation the usage time doesn't lie. I mainly use my phone for browsing so with Opera Mini and brightness at 15% I got these numbers which are around 1 hour better that stock.
[Galaxy Note GT-N7000 Accessories] hp79:
Lol. I got two anker batteries with a charger for $15 shipped from amazon.

Both showed 28xx mah range, a little more capacity compared to 1 week old stock battery (27xx mah) in battery monitor widget. This was from cycle 1. I dont think Gold battery would be any better. It's both interesting and funny to have someone test it to find out if it really is 3250 mah. If it at least had a name brand, I would maybe believe it. I would bet that my anker battery has more juice than this gold battery. At least anker is made in iso9001 certified factory.
[Galaxy Note GT-N7000 Accessories] p107r0:
yup, probably will keep the capacity better in long term as well
[Galaxy Note GT-N7000 Accessories] paris.gr:
As I mentioned above it is not about what the BMW says (because for the gold battery I have seen also around 4.000 which probably is not true) but about the usage time that you get out of it.

And yes the difference is not about 30% but for sure there is a difference. And speaking about ISO the only thing that it does is certifying the process not the outcome which means that they don't care if this is a 2500 or 5000 mah battery as long as they repeat the same process.
[Galaxy Note GT-N7000 Accessories] DJ-Tumor:
Since you did set the charging value to "0" your "measurement" is a total joke.

And the estimated value of over 4000 is the absolute proove for that!

If you set the value for charger to "0" the app has to think that without charging the battery it just keeps going on and on and on. That is why you get those ridiculous figures.

If you are charging via USB set it to 500mV that SHOULD be the value for a standard USB-Port EVERYWHERE. Of course there will be possibility of up to 15mV difference in reality but who does have the hardware to test that.

Using the stock charger it is 1000mV.

If you don´t set the charging value correct you make the app a battery eating nonsense.
[Galaxy Note GT-N7000 Accessories] jeromepearce:
For the benefit of those asking, the only way to measure the true capacity of a battery (of cells, accumulator, whatever), is to charge to the max and perform a controlled discharge. I have done this with lead-acid batteries by an effective short circuit that measures the current over the discharge time. This is standard practice with them, but I have no idea if this is a good idea with Li-ion cells.

As for what the phone can know, it is purely the voltage that indicates the remaining capacity. This is something that is not a great guide, but can be fair.

As for accumulators, I prefer them for Orgones, personally:

http://www.youtube.com/watch?v=7fJ0P1f0Ys0
[Galaxy Note GT-N7000 Accessories] paris.gr:
First of all since this post I have set my charger output to the correct 1.000 mah. Second as I mentioned I don't care that much about the capacity estimation but more about the usage time and the usage time is about 1 hour more with the conditions I have described. And finally I don't try to convince anyone, I am just sharing my own stats for people who care to read them.

PS. I would have highlighted some of the above also in red but I am not sure hoe to do it properly. Maybe you can help me.
[Galaxy Note GT-N7000 Accessories] bigmouth66:
love2morrow = complete idiot

Hi guys.

Don't order your battery at love2morrow. The guy is a complete idiot. I've ordered the battery 2 weeks ago and today i received 2 touchpens for an iphone. I'm not the only one here who received the wrong stuff.

No problem for me because i've paid with Paypal and did not had to sign anything when recieving the 2 pens. So I will make a Paypal claim in 2 weeks for receiving nothing at all and will have my money back.

Just writing this to warn you. Don't order your battery at love2morrow.
[Galaxy Note GT-N7000 Accessories] krazman325:
The others who received the "wrong" stuff received the correct battery a day or two later. The seller sends a bonus gift as thanks, it seems.
[Galaxy Note GT-N7000 Accessories] bigmouth66:
OK thanks! Did not know that. I will wait a few days more and see if I receive the battery :p
[Galaxy Note GT-N7000 Accessories] iakovl:
So what are the final conclusion on this battery? Any good?
[Galaxy Note GT-N7000 Accessories] hp79:
Edit: Added OEM battery test too.

Screen shots of Anker 2500 mAh & OEM 2500 mAh attached.

Anker 9:46 and still had 1% left.

Samsung 9:46 and still had 1% left.

I had Cellular (without SIM in it) / Wifi 5GHz / BT on at all times, display set to minimum. For the media player, I used BSPlayer and played local video (Futurama season 6) on my SD card. Brightness was minimum at 1%, sound at 20%. It was still very nice and bright enough for normal watching.

It's amazing how long this thing can last watching video.

I don't have a Gold Battery so I can't test it, but I highly doubt it will produce any better result.
[Galaxy Note GT-N7000 Accessories] Marct77:
Completely unscientific test from me:

Changed nothing with my set up,screen set to max brightness as usual,continued to use as I would normally,given the 3250 battery (cell for the pedantic) 3 full charges....

let it run down and re-charge and I have to say I see absolutely no fecking difference whatsoever,it runs out just as quickly as the allegedly smaller

battery....Still it's a cheap back up
[Galaxy Note GT-N7000 Accessories] peterx666:
Quite right - so long as it works......

Instead of a remote charger for if I am out and about bought an extra battery off Ebay and a wall charger - the idea being that I would carry the spare wherever I go - the battery I bought seems to work OK but the main drain seems to be if you are on WIFI or internet

If yours works it may be a better solution ......

How did you go on?

pete

:D
[Galaxy Note GT-N7000 Accessories] lev04:
yeah,i ordered one from this user and...got some f...ing nail polish!I advise all you people to just STAY AWAY FROM this user!!!

Anyone can guide me to a 100% HONEST BUYER please? Thanx
[Galaxy Note GT-N7000 Accessories] paris.gr:
Did you contact the seller? I have a totally different experience from their customer service and also if you check the seller's ratings I am not the only one.

Regarding the battery now I saw a drop in the performance after the last cycle but I need to double check it.
[Galaxy Note GT-N7000 Accessories] lev04:
i send them a message and i'm waiting,i just got the package a few hours ago.
[Galaxy Note GT-N7000 Accessories] paris.gr:
Every time I have contacted them they have replied within a couple of days so I am pretty sure that they will reply so don't worry.
[Galaxy Note GT-N7000 Accessories] bigmouth66:
After the first two touchpens for iPhone last saturday, I recieved 3 bottles of UV gel today :rolleyes:

The guy is a nuthead and will have my Paypalclaim
[Galaxy Note GT-N7000 Accessories] p107r0:
Makes you wonder what could be done with two ipens and UV gel...
[Galaxy Note GT-N7000 Accessories] --Rob--:
I'm thinking about giving this battery a chance: eBay-Link

Has "only" 300mAh more, but for 7,90€ worth a try.

It says german quality and bc I'm from Germany I give it a chance, as long as the vibration is integrated...
[Galaxy Note GT-N7000 Accessories] sharan.mu:
i would like to give a try too..