yashsingh1/xdaforums huggingface dataset:
[HTC Sensation] Lakino:
Read almost 1800 posts and 99%+ were completely useless. So few posts had actual empirical data to support the posters assertions.

This thread reeks of the blind leading the blind.

Folks, do yourself a favor and please read the following links:

Charging Lithium-ion

http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries

How to Prolong Lithium-based Batteries

http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries

Lithium-based Batteries

http://batteryuniversity.com/learn/article/lithium_based_batteries

Types of Lithium-ion Batteries

http://batteryuniversity.com/learn/article/types_of_lithium_ion

And here is a good example of what empirical data should look like:

http://www.candlepowerforums.com/vb/showthread.php?117117-Li-Ion-Battery-Shoot-Out

Batteries are rarely created equal. We need to see the full discharge chart to compare different batteries.

Bottom line, we need a lot more empirical data--not anecdotes about perceived extended runtime from Ankar battery.

Batteryuniversity.com and candlepowerforums are good sites to learn more about lithium-ion batteries.

For the record, I would take an HTC original OEM 1730 mah battery over the Ankar 1900 (really 1700) mah battery any day!
[HTC Sensation] AndroidNeophyte:
Eh dont need all that information.... We already know the basics... And before you accuse everyone as " the blind leading the blind." Most of these people are pretty knowledgeable about these things.... HAVE RESPECT.... These are people's experience with the product and i mostly respect that over your "by the book information".. In real life, there is no insruction manual, we learn from experience... I know there are reviews here that are not reliable but i think everyone here are smart enough to differentiate the good ones from the bad..
[HTC Sensation] The Janitor Mop:
Agreed. I already knew that there is limited actual data being given on these batteries and that most responses are anecdotal and based on personal estimations. I bought the 2 Ankers+charger knowing that they are really more like 1700 mah, because 2 1700 mah batteries for that low price is still a crazy deal. And who gives much of a care about the battery tech? Battery tech has been one of the least advancing fields in the world of technology; I'll start reading up on technical information about batteries the day they finally do something to significantly improve them.

My stock battery is more or less useless now, only a year after I got my phone. My take on batteries in general is pretty drab, so whether or not OEM is better I couldn't care less. These Ankers will probably be useless in a year as well, the only difference is that they were way cheaper to acquire than OEM, give me some extra life in real world practice, and run way cooler. And if they don't last me as long as OEM (which didn't last long to begin with), then I'll go out and buy some more damn batteries because I've already accepted that batteries suck in general and I'm not going to get worked up over them.
[HTC Sensation] Lakino:
Ignoramus ostrich sticks head in sand and remains ignorant.

The reason why you get crap battery life is because you don't understand how lithium battery works. You don't know how to charge them properly and you don't understand how to properly prolong their battery life. I tried to inform you with links above but like an ignoramus ostrich, you want to remain with your head deep in sand.

* Charge your batteries often.

* Don't let your battery drain down to 0%

* Don't over charge them! Unplug when it reaches 100%.

* In an idea world, you would charge them when the battery reaches 50% and stop charge when it reaches 90%. Lithium Ion do NOT like being in either extremes states--fully charged or fully discharged.

* There's NO need to condition Lithium Ion batteries. You won't get better results after 4 or 5 charges. Any perceived difference will be wishful thinking placebo affect.

* Lithium Ion batteries have a finite shelf life. Even if you don't use them or charge them, after several years (think 3) they will lose a significant portion of their usability.

* It's better to use a slower rate charger (500ma) as opposed to the included charger (1000ma). You will get a faster recharge with the included (1000ma) charger but a slower charger will be less stressful on the battery and your battery will last longer.

Follow these guidelines and your lithium ion battery will be very happy with you.
[HTC Sensation] KCuadrado:
Yesterday in the night, I used my stock HTC battery again and it only lasted 2 hours and a half (screen on). I can easily get an hour more with one if my two Ankers. They are cheap, and last a little more. I am sure most will agree to this, so why fight about someone saying most posts here are useless?
[HTC Sensation] ChobbyNS:
Is it ok to charge anker with stock wall charger?

Or do I need to buy external charger on e bay?
[HTC Sensation] The Janitor Mop:
Assuming poster remains assuming.

I do charge my batteries often. I don't let my batteries drain down to 0%. I do unplug when they are fully charged. I generally begin recharging when it is down to 40-50%. I do not buy into "conditioning" that so many people do-meaning I neither do complete discharge/charge cycles nor do I ever wipe battery stats or do any of the other placebo things people do. I already knew that batteries naturally waste away whether or not they are in use. The last thing is the only thing I do, and I only use a faster recharger for practical reasons.

So I do 1 "bad" battery habit, and it's for practical reasons. If in the long run my battery loses 15 days of life because of that, I really don't care. The reason I got crappy battery life with my stock battery is not because I don't understand lithium battery tech, it's precisely the opposite. My stock battery life is now short because my phone was in way too many very hot situations for extended periods. That was something I knew at the time was going to reduce the useful life of my battery, and I do my best to keep my phone in more ideal conditions, but life is life, and if I need to use my phone in a hot environment I'm going to do so. It's just a damn phone after all; I'm not going to let some preoccupation with babying an object get in the way of the functions I need from that object.
[HTC Sensation] AndroidNeophyte:
Yea these are old information... Truthfully, i do things such as calibrating because these things that you mentioned is being done alot of times and still dont work for me.. it will prolong your battery life, thats it.... Im not aiming for that.. i will probably buy a new phone before my battery gets damage anyway... I want my battery to last atleast more than 14 hrs because i need to... Just fyi, sometimes android dont read the battery % too well and thats where i come in to do it myself... I dont wait for my device to do it because sometimes its just not happening... I mean there is nothing wrong with sharing these information... All im saying is share it nicely... Dont just come in here like no one knows what they are doing.... Please be considerate, thats all....
[HTC Sensation] Lakino:
These are both good posts. Understanding how lithium battery works and deciding, for practical or personal reasons, to override the ideal guidelines is fine. But I didn't read many posts in this thread phrased in that way. The vast majority of posts were giving out completely incorrect information about lithium ion batteries.

Another thing, there is no way to objectively test the actual mah capacity of these batteries without performing a discharge test to measure the capacity. This can't be done on the phone itself. Additionally, the battery should ideally be tested under different loads (current draws). I.e., multiple discharge tests should be conducted using, for example, 200ma, 500ma, 1000ma and 2000ma discharge rates to see how the battery actually performs under different loads.

Here is an example graph of discharge tests conducted by Silverfox from candlepowerforums on a 1400mah lithium ion battery under various loads:

That kind of graph was what I was hoping to find on the ankar battery in this thread. After spending over 24 hours reading through this entire thread, I did not find such objective, empirical data.

Most of what I found were anecdotal testimonials claiming the battery lasted longer--No empirical and controlled testing to support their anecdotal claims.

Needless to say, I was very disappointed after wasting 24 good hours going through this thread trying to find real data to confirm how "good" the ankar battery is.

edit: I am not an expert on modding andriod phones; hence why I'm here at XDA. And while I am not an expert, I definitely understand lithium ion batteries very well.
[HTC Sensation] henriguners:
Its original from angker? why so cheapest?:confused:
[HTC Sensation] Lakino:
It is fine to charge the ankar battery with the stock wall charger.
[HTC Sensation] The Janitor Mop:
Understood. I know exactly the trouble you're dealing with. Most people on here are probably into the technical sides of things at least a little bit, and a lot of people have one or two things they are really into. For me, it's display technology. With display tech you get the same kind of reviews and discussions that are centered around subjective claims. It's awful because even the big tech sites will often only have limited information on the display technology in their complete reviews of devices. They'll note that it's either SLCD or SAMOLED/SAMOLED+ and what the resolution is, and that's about it for the objective stuff. I got my Sensation in part because the screen was praised; aside from the resolution I have been disappointed in it. Horrific outdoor visibility. Now I am very interested in the deeper tech specs with displays, especially brightness ratings (black brightness ratings at 50% and 100% brightness, white brightness at 50% and 100% brightness) and subsequent contrast ratios.

The problem is that hardly any websites actually give this information. Everyone is sitting around going "How is the HTC One X display so damn good?", and then all these people think they have the answer and give a shallow "SLCD2 vs. SLCD!", as if that sufficiently answers it. What exactly are the differences between SLCD and SLCD2 in terms of performance? It wasn't until I finally found deeper specs on the One X that I found that its max white brightness is very high, much higher than the Sensation's, and its black levels are very low for an LCD display, again much lower than the Sensation's. Its contrast ratio is very high for an LCD display. I've found that these specs are very good at identifying the great displays from the average and poor. Almost without fail, the most highly praised displays share these spec attributes (of course, the specs I look for depend on the type of display, as a SAMOLED does not need the same white brightness ratings as an LCD display to be as visible outdoors, due to its inherent advantages in being less reflective and displaying black). Rather than giving me some subjective opinion about a display, it would make my forming of my opinion about a new device much simpler if they gave me better display specs. So I can get wanting to know more about the objective tech in our devices.
[HTC Sensation] Lakino:
Yep! Very much agreed. And I completely understand your analogy to display technology. Reading through HDTV threads drive me nuts too. Again, a lot of personal, biased, subjective anecdotes about how one display is better than another. Sigh.

We need the real "specs" for the anker and chittech, as well as the HTC OEM, batteries as objectively and empirically tested and verified by the users, not just the specs given by the manufacturer/seller. I was hoping to find more hard objective data, as opposed to subjective, personal anecdotes, here.

I know I'm repeating myself. lol.

If someone actually provided a discharge graph with multiple discharge rates from 4.2v to 3.0v for the ankor 1900, and it shows that it does perform better than the HTC OEM 1730 mah battery, then I'd be all over the ankor. I'm not a hater of anker. It's just that I have not seen objective data to support the assertion that anker is better than the HTC OEM 1730.

edit: Incidentally, the HTC OEM 1730 mah battery is not that expensive on Amazon from third party resellers:

http://www.amazon.com/NEW-HTC-BG86100-BATTERY-35H00166-00M/dp/B0058VZTO8/

Given the price of the anker and the HTC OEM 1730 sold on Amazon, I prefer to purchase the HTC OEM. If I do see more empirical data showing better discharge rates for the anker battery, then I will change my position.
[HTC Sensation] ChobbyNS:
Thanks man,that was fast reply :)
[HTC Sensation] :
I have used the Anker 1900 for about six months now and it has worked well for me. I am currently runnning the PkMn Sense 4.0 ROM and while I don't get the same battery life that some people in that forum are getting, I can comfortably make it through every day, which was not true when I was on the stock battery. Considering I got 2 batteries and a wall charger for a reasonable price I am very happy with the purchase.
[HTC Sensation] DjLukeW:
I know that my Anker 1900 lasts 8 hours longer than my HTC original. Same charge and usage patterns. So I'm happy with that as are 1000's of others
[HTC Sensation] DjLukeW:
Oh and pic proof...
[HTC Sensation] GoreTan:
Just bought an Anker battery. Any tips for beginners? lol

Thanks!
[HTC Sensation] DjLukeW:
Full Charge then let it empty completely then full charge

just repeat that :)
[HTC Sensation] k0zmic:
Decided to get one of these, hoping it's worth it after seeing a lot of positive views on it.
[HTC Sensation] LPChris47:
My Anker battery is starting to lose performance, which is okay and what I expected from a low-priced battery.

Basically, the Anker is high-performance initially, but not sustainable long-term performance (at least from what I've experienced.).

I'll definitely buy another one for that price to get great performance for 1 year.
[HTC Sensation] GoreTan:
It's rated to last 500 recharge cycles. Unless you go through more than 1 charge cycle a day, I don't think performance loss will be that noticeable
[HTC Sensation] LPChris47:
Rated performance vs. actual performance.... BIG DIFFERENCE (as we should know, since the Anker is rated at 1900 mAh, but returns approximately 1700 mAh in tests made earlier in this thread).

I charge 1-2 times per day, depending on usage.

It won't be the same for everybody, but my Anker is starting to lose performance (like I said, it's okay because it was expected from a low-price battery).
[HTC Sensation] DARTHVAPOR:
My anker went downhill after a month...gonna try another one though.

Sent from my HTC Sensation 4G using Xparent Cyan Tapatalk 2
[HTC Sensation] max_2ooo:
hi,

got my anker 1900 3 weeks ago. i tryed differnt ROM's.

Now i'm on RCMix 4.0.3 and it goes and goes and .... :)

Sometimes the battery statusbar was not showing the correct power (in other ROMs). It shows more then actually was.

But i'm fine now! tx ;)
[HTC Sensation] Lakino:
Charging lithium ion batteries often is better than letting it deplete to very low levels then charging. Ideal would be 50% - 90%. lithium ion batteries don't like either extremes, so charging to 100% isn't preferred unless you really need to have full capacity for a day out and about without charger access. If you're at work/home where you can easily charge, it's better to charge to less than 100% and unplug for use. Then when it gets to 50% or so, plug in for charging again.

Any lithium ion battery will last much longer if used in this gentler manner, as opposed to fully charging to 100% then depleting to mandatory shutdown by system then recharging.
[HTC Sensation] k0zmic:
Just got the battery today and it already is showing an improvement over the XE battery.

So far I have around 50% remaining and have had 2 hours and 15 minutes of screen on time, a good 30-45 minutes of that was playing games.

Hoping it'll improve even more after a few more charge cycles.
[HTC Sensation] louiscar:
Wild claims ?

I recently contacted laptopmate_usa who sell the Anker because I too found that I had 1580 reported on BMW. HOWEVER, I did so because my Sensation XE reports the stock battery correctly at 1730 and the author of BMW (talk to him if you don't believe me) states that the Sensation is accurate in determining the capacity

I'm not going to read all this thread but some claims seem to be groundless ...

I've seen this argued many times, mainly stating that the older sensation had a a stock setting which was 1580 so it would report that. Well if that's the case how come the Sensation XE which would supposedly have a stock value of 1730 and indeed sees the stock battery as exactly that, still reports 1580 when it sees this battery?

One more point, my brother has a Sensation and tells me the stock battery in that is 1520 not 1580.

Laptopmate_usa has asked for pictures and test results and are currently concerned enough to investigate. I will be interested in what they come up with.
[HTC Sensation] PsicheAlCubo:
What BMW actually measure can be found in the tab called "calibration" and it tends to get more and more accurate as time goes by and you charge your battery more times and for longer periods. There I always found values between 1860 and 1980 with an accuracy of + - 10% which place Anker's Batt exactly where it should be.

On the contrary the value you read on the first tab ( 1580 ) is a preset value from an internal chip which I believe behave the same wrong way as does the one that should tell the temp...and we all know it doesn't stay ALWAYS between 25 and 27 Celsius right?

That said..I definitely don't care the actual mAh of Anker's Batteries since TO ME they last quite longer then the stock one and are at the same time SO much cheaper!! ;)

Sent from my brain using my psyonic powers
[HTC Sensation] V1k70r:
I want to buy a new battery, and I know everyone is very positive about the Anker batteries, but since my phone has a high overclock it gets really hot when I'm gaming. It even gets so hot I can't hold it (yes I know, not good for the phone). I've never trusted 3rd party batteries, so I'd rather use the Evo3D/Amaze battery. If the Anker can handle such high temperatures I'd of course buy that one. So I wonder if anyone owned the Evo3D/Amaze battery and the Anker battery, and if he/she could report about the battery life and temperatures. Yes I searched but I didn't find anything useful.
[HTC Sensation] amsterdam88:
Can I use anker Battery with opensensation CM9?

Inviato dal mio HTC Sensation con Tapatalk 2
[HTC Sensation] ximocko:
Oh yes, why not mate?! :D
[HTC Sensation] ChobbyNS:
I cannot see difference between anker and stock battery,my phone is same hot when im playing games on any rom,so you can use anker for gaming :)
[HTC Sensation] elmalote:
I have the anker and it doesn't get nearly as hot as the stock battery.

I'm overclocked to 1.728ghz.
[HTC Sensation] louiscar:
Having had my Anker in for a while now and beginning to get some figures, they do seem to be ok so I think you are right about the preset although I still find it curious that the XE will recognise it's own battery as 1730. The only thing I can think of is that there is something in their battery that they can identify as their own. I guess if that ID isn't there then it uses the 1580 preset.
[HTC Sensation] Omgaan:
Runnin' my Sensation with an Anker for a while. Since last week, i got FC's. No restart...seems like never startet. A little paper to press the battery in fixed this problem. i think it was a problem with the contacts. The power of this battery is excellent! About 2 days with normal usage.

Sry for my badass english :P
[HTC Sensation] egg_n_ham:
I just bought an anker battery and i must say this battery kickass, and owns the stock battery.

My stock battery will die in less than half a day. Normally it will drain off 20% in just approx 30min screen on usage of web surfing, downloading of apps. A trip to office with music and reading the news will drain it to 50%. My day hasn't even start with that kind of battery to go wth!

The anker now has really amazed me. I did the same routine in the morning of reading news and web surfing while i had my breakfast,and it stays at 100. When i reach my office, i am still at 91%!

Best part is, in my only 2 days trial run, it lasted me till 8pm, till i see it go about 30%, it was time to charge.

How long can this phenomena last, i am still about to find out. :D
[HTC Sensation] ctscloud:
I've used my Anker battery since August and I think the time has finally ran out for it. It recently been shutting off randomly on one of the AOSP ROMS, thought maybe it was a software issue. So I switched to ARHD and today it was fine until I got those reboots again. I'm about to swap the battery out to the stock one and see how it goes. Has anyone ran into this problem as well?
[HTC Sensation] AndroidNeophyte:
I had the same issue before also... Yours might be different cause but mine was a loose battery.... It started happening to me when I have been removing the battery a lot and throwing my sensation on my bed after I arrive from work... Try this fix first maybe it will help you, it stop the random reboots on mine...

http://xdaforums.com/showthread.php?t=1622683
[HTC Sensation] Tinchoska:
does it works on sensation z710e??? can you send this into argentina???? how much?????
[HTC Sensation] Rusty!:
Yes it will work, just by one off eBay.
[HTC Sensation] g1user101:
What website do u guys buy from? EBay?
[HTC Sensation] Rusty!:
Yeah mine came from eBay.
[HTC Sensation] PsicheAlCubo:
So after almost 8 months of INTENSIVE use I can report you back some of the experiences I had with this Anker:

1- I bought my first Anker in October 2011 just a week after I got my Sensation. The first impression was about: WOW! It lasted about 30-35% longer than the original 1580 mAh Sensation battery and therefore it allowed me to reach easily the 24h before needing to recharge (airplane mode during sleep)

2- I now have a Sensation XE and after 8 months of daily usage my Anker's Battery still last more or less as the original 1730 mAh Sensation XE battery (which to me means between 20 and 30 hours depending on the usage) : I'm THAT happy with this battery that I bought a second set of 2batt+universal charger. I gave my old Sensation as a present to my dad including 1 new Anker and it's charger.

In conclusion: there is NO test out there to know FOR SURE the capacity of these batteries, but one thing I can say for sure --> they're ABSOLUTELY worth they cost...and much more...and this is IMHO what people is looking for in this thread! ;)

P.S. Where to buy it? I got mines from Amazon.co.uk and I'm from Italy: found it was cheaper than eBay or any other place...but this depend also on where are you from!
[HTC Sensation] manlisten:
Last day with stock battery

15h 13m 37s on battery

2h 12m 31s screen on time

10% left

First day with Anker

12h 36m 39s on battery

2h 37m 57s screen on time

12% left

My phone shut down while reporting 12% remaining so I'm skeptical as to whether the reading was accurate. Will see how perfomance changes over time.
[HTC Sensation] PsicheAlCubo:
This looks more like a faulty one..

My suggestion is to monitor closely and if you don't see any improvement contacts immediately Anker for a replacement: other user reviews suggest they also have a great customer service ;)

Sent from my brain using my psyonic powers
[HTC Sensation] manlisten:
Day 2 was much better

21h 28m 15s on battery

2h 44m 4s screen on time

10% left.

I took it off the charger the night before which is why the time on battery is so high. This time it did drain down to 1% before shutting down. Going forward I typically won't let it drop below 20%.
[HTC Sensation] klausel:
Anker Akku works netter than Stock. Even bester than the xe Upgrade. On daily use lasts for about 30 hours. Just little undervolted my device
[HTC Sensation] undercover:
Why are we still going on about Anker? It IS better than stock, bar a few duff batteries which should be sent back for replacement immediately.