yashsingh1/xdaforums huggingface dataset:
[HD2 Accessories] UncleBeer:
This definitely seems like the best workaround for the unfortunate power problem on the HD2: buy a bunch of cheapo ebay batteries and carry 'em around as neccesary.
[HD2 Accessories] appelflap:
I agree. Never worry again... just have a extra 5 euro battery in your pocket.
[HD2 Accessories] eskasi:
That would "work" for me except I absolutely hate how tough it is to remove the battery cover..... grrrr...
[HD2 Accessories] UncleBeer:
I've gotten pretty good at it: just give the cover a bit of a *squeeeeze* and off it comes!
[HD2 Accessories] harolds:
Using the battery for several days now, no problems, no noticeable difference in battery life either, but going from 1230 to 1500 I didn't expect to actually see a difference. Too hard to compare apples to apples.
[HD2 Accessories] lude219:
That's because the battery you bought is not a true 1500mah. Going from a 1230 to 1500 yield a +20%, which makes a huge difference. If you'd owned a Diamond or even the HD and bought their extended battery, you'd know.
[HD2 Accessories] dagrim1:
Then again, an extra battery for this price is still an excellent deal :)
[HD2 Accessories] lude219:
well, obviously. But that's beside the point.:)
[HD2 Accessories] harolds:
No, actually that was my point.

From day to day you could easily see a 20% difference in battery usage, even though you thought you used the phone the same.
[HD2 Accessories] lude219:
The point was you got jibbed with a "1500mah" advertisement and in the end, you got stuck with a stock battery performance. His point was that "well, since you got suckered with false advertisement, I guess you have no other choice but to use it as an inexpensive spare battery." Whether or not in your coo-coo mind you feel that you somehow benefited from this ebay battery is something you should talk it over with your psychiatrist, but a battery tool test never lies.

This thread should be renamed to "ebay stock battery" instead, because you didn't get the performance out of a 1500mAh battery like advertised, which was my whole point.
[HD2 Accessories] Eraser85:
the problem with those chinese batteries is that they loose their maximum charge capacity pretty quickly.. original one instead tend to last more
[HD2 Accessories] UncleBeer:
Whether it's 1200 or 1500 ma, it IS an inexpensive spare battery. :rolleyes:

Where do ya'll come up with this stuff?
[HD2 Accessories] beyondthought:
:eek: :eek: :eek:
[HD2 Accessories] cranesky:
u can check the battery by using max manila, I have tested one, and the capacity is fake, it is only 1200.
[HD2 Accessories] lude219:
Perhaps you have problem comprehending. This thread is about 1500mAh battery, and not about "inexpensive 1200mAh battery." I hope you can tell the difference :rolleyes:
[HD2 Accessories] dagrim1:
That's true of course... In the end I guess there might be some extra juice to be gotten from standard sized batteries vbut for a real extra bite you'd need an extended (size) battery which basically makes the phone a lot less attractive and pocketable.

Ah well, never stop hoping :)
[HD2 Accessories] xmoo:
You can also use the HTC Battery app.

http://xdaforums.com/showthread.php?t=622849
[HD2 Accessories] Akademist101:
Official Extended HTC Battery and Kickstand Cover

http://www.clove.co.uk/viewProduct....rce=google&utm_medium=base&utm_campaign=pound

I'll be buying the official extended battery not out till february and unknwon in the capacity will increase depth (if no one is fussed) and the kickstand adds some functionality made by the same high quality grade of material.

£52 for official extended battery and cover = good investment.

Good for anyone wanting to provide proper investment and have the assurance of extended battery life.
[HD2 Accessories] itoYo:
Xmoo check post #71!
[HD2 Accessories] UncleBeer:
Glad you're here to tell us what's "proper". :rolleyes:
[HD2 Accessories] Hales:
1500mah not enough? here's 1600 from Hong Kong :p

http://cgi.ebay.com/1600mah-Spare-B...emQQptZLH_DefaultDomain_3?hash=item519030aea1
[HD2 Accessories] marcus.wiberg:
What about 2000mAH

Just Ebay this: 2000mAh Battery for htc HD T8282

Im pissed, just ordered the 1500mAH one and now i found the 2000mAH.

I will for sure add a review when i get it...
[HD2 Accessories] Jammie_1989:
Thats for the HD this is the HD2 probs won't fit
[HD2 Accessories] liamR:
Seems good, I think I'll go for it...
[HD2 Accessories] mean-machine:
I bought Andida branded extended battery for my TouchDiamond2 and it DID work much longer than the standard one so assuming the 1600MAh is the the same quality, I would strongly recommend getting this one. I will. For £5.99 you can't go wrong :)
[HD2 Accessories] liamR:
@mean-machine

I convinced. I'll give it a go (just ordered one).

Thanks
[HD2 Accessories] dainys:
Let us know when you get it.
[HD2 Accessories] p3eps:
Me too - £5.99 - its worth a go! I need a second battery anyway.
[HD2 Accessories] chris5932:
Could you do some professional testing when u got it? with some app?
[HD2 Accessories] Biffy:
Is no-one worrying about these cheap batteries exploding when in their pockets?
[HD2 Accessories] BLAST3RR:
Bought two of those. Will report once they are in.
[HD2 Accessories] BLAST3RR:
Not really.. I don't think the differences between the original battery and these cheap ones are so big.. They are probably produced by the same OEM manufacturer anyways. :rolleyes:

I will only use them as backup batteries, or maybe if they are noticeably better, maybe use them as main battery, just for convenience.
[HD2 Accessories] liamR:
I did a little research on the Andida battery, and it seems that the batteries form this brand is very reliable with outstanding perfomance (It's a well known brand in HK).

I'll test it when I'll receive it for confirmation...
[HD2 Accessories] tmaniac:
well...can't wait for the review. If they really are 1600 and have good performance...i'm buying 1!

Keep us posted and thanks for the info! :)
[HD2 Accessories] harolds:
I did a test where I streamed audio through wired headset for 45 minutes, from full charge both the original battery and this battery (1500) used 15%. so basically don't expect any better performance.
[HD2 Accessories] tonyblack:
Have you analysed the battery to see if it is in fact a 1500 mAh battery. I bought one on Ebay from Hong Kong that claimed to be 1500 mAh but when I tested it using TBattery 0.6 I found it to be only a 1230 mAh. Don't be taken in by whatever it might say on the label. Test it!
[HD2 Accessories] BLAST3RR:
My 2x 1600 'HongKong Famous Brand'-batteries got shipped today. :D

I'm curious to how it will be performing once they're delivered.
[HD2 Accessories] chris5932:
I also bought one of this batterys 1600mha

I found this:

http://www.batteryreview.net/category/andida-battery

this seems to be a professional review.. but i dont realy understand all of it

what the hell is meant by "Stable up to ANDIDA doing my part" ??

someone to translate?

cheers
[HD2 Accessories] shaggydabbydo:
Ordered 2, hope they arrive and hope they're good :) Also ordered one of their "Real COW Leather Up Case for HTC Touch T8585 HD2 HD 2" as it looked good and their "Leather case report" gave me a good laugh: http://www.obostore.com/leather_cases/leather_report.htm
[HD2 Accessories] anonemous:
Check this out...........

I (like many others) simply couldnt wait to use my phone before charging my battery fully and so my original battery would just about last a day.

I then found this on ebay "2X BATTERY+CHARGER USB CABLE FOR HTC HD2 HD 2 T8585"

They came from Hong Kong in just under a week but MY GOD what a difference!

I can now use the phone FULLY (movies+fpsece) and take+make phone calls during the day and still go home with around 60-70% charge which is simply awesome.

Cant recommend enough. the Mah rating is only 1200 for these batteries but for such an awesome price I simply couldnt ignore. The wall charger is useful as well because I now go to work with a secondary battery JUST IN CASE but so far havent needed it.
[HD2 Accessories] mjemec:
Can you charge those via USB? Because I've seen picture of those chargers and they don't come with EU electricity plugs.
[HD2 Accessories] mskip:
Didnt understand a damn word of it either mate haha. Looks like a bad translation as it doesnt make much sense at all but it didnt stop me buying one ;)

If its really 1600mAh then it should have a decent battery life and if its not well its still gota be better than the last battery I bought off ebay that was too big and is starting to fall apart after 3 weeks lol.
[HD2 Accessories] eskasi:
Thanks for that link! I just ordered one... I have been looking for this one on Ebay for a while :)
[HD2 Accessories] gustavoa:
This battery is crap. Brought it and it last less than the original one.
[HD2 Accessories] goldengoose:
I jumped on the band wagon and bought one of these Andida 1600mAh batteries too. I just received it today and have put in my HD2 only minutes ago. Nice fit, fancy packaging, reasonable quality looking battery, so no complaints there.

It had 64% charge when I powered up. I'm going to charge it to 100%, let it discharge fully, recharge to 100% and then see how it performs.

I've installed TBattery 0.60 and it's reporting:

FULL (mAh) 12296

I don't know enough about this tool yet to make sense of all the numbers, but it would appear that it is a 1230 mAh battery - the same as the original one.
[HD2 Accessories] UncleBeer:
It's your battery and of course you can do with it what you will, but all knowledgeable advice regarding lithium ion batteries says deep-discharging kills these batteries.

I'm surprised how often I see folks here recommend it though. :confused:
[HD2 Accessories] cozzykim:
It depends what you mean by "deep discharging".

A Lithium ion cell should never be allowed to be discharged below 2.7V as then it will not be able to be recharged to full capacity.

The digital battery charging/monitoring system in the HD2 will not allow the battery to discharge below the safe level for Li-Ion, approx 2.7V (although I would normally not allow discharge below about 3.1V in my RC Heli for example).

Maximum charged voltage is around 4.2V but the full capacity of the battery won't be reached until several charge/discharge cycles have been done with a new battery.
[HD2 Accessories] UncleBeer:
...as I said, it's your battery to ruin as you wish. :rolleyes:
[HD2 Accessories] Volw:
UnlceBeer, cozzykim posted facts and hard data. You're saying nothing besides 'ruining the battery' any data you can back this up with?
[HD2 Accessories] UncleBeer:
Oh, is this indeed a "fact"? Have you seen this "fact" documented anywhere besides another's post? Does that make it a "fact"?
[HD2 Accessories] liamR:
That's odd.

I'm not familiar with the TBattery app and its accuracy, my plan is to check the battery with HTC Debug Tools when I'll receive it...

btw

I'm not recommending to install the HTC Debug Tools because it will mess your handheld.
[HD2 Accessories] Volw:
I've asked about any sort of data regarding 'ruining the battery'. So please don't twist it around and flame.

To answer you, damaging the battery by discharging Li-ion below 2.7V (it's actually below 2.5V, but 2.7V is used for safety margins) is pretty much common knowledge, also I don't know a single, modern, consumer level device that doesn't protect the battery from discharging below that level. I can even test the battery with voltmeter once it's drained to see how far HD2 allows it to drain.

I've yet to see any data about 'ruining the battery' ... I have a feeling I won't be getting any from you.
[HD2 Accessories] tfouto:
http://www.batteryuniversity.com/parttwo-34.htm

"The battery prefers a partial rather than a full discharge. Frequent full discharges should be avoided when possible. Instead, charge the battery more often or use a larger battery. There is no concern of memory when applying unscheduled charges."
[HD2 Accessories] UncleBeer:
Thanks tfouto. That's the site I was going to when I got a minute. And "discharge fully" were the exact words poster goldengoose used.

Try provoking someone else Volw. :rolleyes:
[HD2 Accessories] goldengoose:
The reality is that during normal (heavy) use, I can go from 100% to dead in about 2 hours - this is why I bought a 2nd cheap battery on eBay :). If it only last a few months due to deep-discharging, so what, I'll just buy another one (or two).

Anyway, about 9 hours ago, I had the Andida 1600mAh battery at 100%. I've left the screen on all night, 3G is on, bluetooth and wireless off, but havn't really used it much (sleeping!). The battery is now at 21%.

Interestingly, the "FULL (mAh) 12296" in TBattery is now showing "FULL (mAh) 11644", though I don't really know what that means.
[HD2 Accessories] moneysaver05:
is the 1600mAH battery actually a 1600mah or not? please tell me before i order one.

regards
[HD2 Accessories] lude219:
none of these are actually 1500/1600mAh batteries.
[HD2 Accessories] goldengoose:
I really don't know what the capacity of this battery is. I've attached a screen dump of TBattery if someone cares to interpret....
[HD2 Accessories] antilagman:
looking at your screen shot it doesnt appear to be a 1600, :(

I myself are using a 1300 momax battery and it beats the original hands down, 100% at 8am and its now 23.53 and I have 29% thats with 3g and BT and data on all day with 30mins of browsing and over an hours worth of calls and on average 20-30 sms, weather app running and Twitter. !

(my original battery would of been flat by 7pm )
[HD2 Accessories] shakenfr:
no more 1500 or 1600 Mah battery for HD2 left on ebay :-(
[HD2 Accessories] kilrah:
Please stop with those deep-discharging "warnings".

A Li battery indded doesn't like to be deep discharged... but "deep-discharged", or 2.7V, is significantly lower than what the protection circuitry in the phone and the battery will allow.

Fully discharging your battery in the phone until it shuts off does NOT qualify as "deep discharge". It stays in the normal operating range and is perfectly fine. If you can do it via normal use, it's within the allowed limits. Manufacturers are not stupid, know their equipment needs to be fool-proof and take sufficient safety margins.

Even a 2.7V discharge once in a while (every month or so) would not be anything to worry about. You just wouldn't want to do that every day, or leave it discharged for weeks as self-discharge would indeed bring it too low.

I have reused Li batteries that were completely empty (that is, 0V) for a couple of months, with just a ~20% decrease in capacity. Even if not all will allow it, it gives you a scale. And of course don't try that unless you're a properly trained technician, know what you do, and have appropriate measurement equipment.
[HD2 Accessories] UncleBeer:
Please feel free to pass your wisdom along to these folks: http://www.batteryuniversity.com/parttwo-34.htm :D
[HD2 Accessories] Starfury:
Some reading material for you all...

Charging lithium-ion batteries:

http://www.batteryuniversity.com/partone-12.htm

How to prolong lithium-based batteries:

http://www.batteryuniversity.com/parttwo-34.htm

Edit: Ah I see another fan of Battery University above my post...
[HD2 Accessories] mskip:
Can people who want to argue about how much they should discharge a battery keep it to private messages PLEASE and keep this thread on topic.

The battery is only £6 for gods sake and people can do whatever they want with them and let them discharge as much as they want before recharging. If it dies then you just buy another one its not rocket science.

The relevant information and links have been posted so lets drop it now.
[HD2 Accessories] Starfury:
mskip - do you use Vodafone's HTC forum at all per chance?
[HD2 Accessories] mskip:
I used it a few times before christmas when I was waiting for my HD2 to come into stock but havent been on there since it arrived. I should have kept on there more as it was a very informative forum.
[HD2 Accessories] chris5932:
Well mha is not everything... did you use it? whats your feeling etc. ? compare to the stock battery?

Cheers
[HD2 Accessories] kilrah:
And you should learn to read...

We're talking about dozens of cycles there. Don't see what's wrong when we talk about once in a while, like once a month, and when needed due to loss of calibration.

I actually had my battery end flat just before I arrived home earlier. When the phone turned off, the battery voltage was still 3.6V, which is quite high.

I took the opportunity to check what was left in the battery, and a further discharge to a conservative 3.1V on an external discharger gave another 52mAh. Note that your link, in their longevity tests, discharge to 3V.

So the margin is indeed pretty big, maybe even too big. That's half an hour of music playback that would be left before reaching a level that is still safe.
[HD2 Accessories] antilagman:
Please see THIS THREAD regarding MOMAX batteries,
[HD2 Accessories] UncleBeer:
No more time for ya'll's flame-bait. Poster's words of "discharge fully" are unambiguous (unless of course you can't read). :D
[HD2 Accessories] goldengoose:
I havn't really had a good chance to see how the battery performs yet - been connected to my PC most of the time during the last couple of days. However, I do get the feeling that it is at least as good as the stock battery, and maybe even a little bit better - but that could just be me. I'll see how it goes over the next couple of weeks and report back.

PS: This is regarding the Andida 1600mAh battery I got on ebay a couple of days ago (see earlier posts for details).
[HD2 Accessories] tobbbie:
I have done some efforts regarding battery capacity measurement :-)

Just lookup this thread: http://xdaforums.com/showthread.php?p=5558383#post5558383
[HD2 Accessories] chris5932:
Thanks for posting this!

Could someone with the battery try it?

I´ll do myself but i just orderd... will take some time!
[HD2 Accessories] tobbbie:
Generally I mistrust batteries with the same physical size that claim to have more capacity. I believe it is more a labelling issue. The original batteries have the same (higher) capacity when they are fresh but go down to the labelled when aging. So they claim average capacity while the others claim peak capacity when new.

After all it is the same chemistry inside - there is no lead-to-gold magic formula.

Measure your runtime and compare - thats the most objective approach possible.
[HD2 Accessories] pa49:
Whatever battery you buy and whatever it's capacity, the priority is to maximise it's potential and any "deep" or even "near deep" discharge is to be avoided.

That means keeping the charging range as high as possible for as much of the time as you can..

Remeber that it could be a couple of weeks of use before you hit max and hard use will benefit the capacity whilst reducing the life span, but, then we are back again to what are we trying to achieve in all this.

For me it's all about maximising the capacity to give as much daily use as poss.

I have used Tbatt and wouldn't rely upon its readings. There have been some reports that the standard battery capacity is hard coded into ROMs, however, I have no technical detail of this only that a number of various marked capacity batteries that I have used recently on a TD2 have all been reported by Tbatt as standard output.
[HD2 Accessories] tobbbie:
When it comes to batteries people tend to get religious in a way. This is why I did measurements myself - repeatable, standardized, (per device) comparable and easy to follow.

The "price" you have to pay is to run down the battery once until the battery driver shuts off. This is not a deep-discharge - it may not even be the limit when the battery circuitry cuts off. It much depends on the voltage that the driver has coded inside when to cut off.

So to stop religious debates about capacity and runtime - just meassure it and publish your results (along with the comfirmation about the conditions you did it) - so easy.

@pa49: I share your view to keep the battery as charged as possible. I have always done this and even my oldest batteries are running well. The only exception are my VOX batteries, but I usually buy used devices - mosty the cheap ones - so I attribute it to this.
[HD2 Accessories] le__s:
If you need power, the best way for that is the HTC Pack :

http://www.htcaccessorystore.com/uk/p_htc_item.aspx?i=195058
[HD2 Accessories] Shum97:
Yeah i seen that..HTC HD2 Extended Media Battery + Battery Cover.

Think i will be getting one:) Only got my HTC HD2 yesterday, its an awesome phone.. Am supprised how fast it runs and all the mod you can do:D
[HD2 Accessories] le__s:
I think i'll buy it too when it'll be online (April). It will be useful for long GPS positioning, film viewing or video recording ^^

I agree with the fact you find this phone very fast and customizable, just need a better OS now, Windows mobile 7 may be the one :p
[HD2 Accessories] orenxda:
This is what i got from them as "1100mAh ECELL BA S400 HIGH CAPACITY BATTERY FOR HTC HD2" for 9,95 GBP.

Shipped it back, my money... "We appreciate your email.However we do need the item returned before we can send out a replacement/refund for you."
[HD2 Accessories] Jackuuuuu:
I got the Andida 1600mAh battery from the link on this page...

The package is the best that I ever received from China/HK. Tough and shiny package etc... testing the battery now... TBH, these batteries usually crap... let see how this go...
[HD2 Accessories] liamR:
I got the Andida battery too. My first impression is that it performs like the original HTC battery. I'll run some tests to see if there is a difference or not...
[HD2 Accessories] mskip:
Should get mine this week sometime, let me know how you get on with it :)
[HD2 Accessories] fards:
been waiting for a while for mine, should be here soon hopefully..
[HD2 Accessories] mskip:
Maybe they are on a slow boat from china together ;)
[HD2 Accessories] fards:
lol yeah.

although it was lying on the hal floor when I got home tonight - so maybe it had jumped into the back of a lorry just outside calais..

anyway so far so good, haven't charged it but it was on 59% when I popped it in.

some email and browsing its on 50 now. so about on par..

as long as its not as bad as some of the horrendous spare batteries ive bought in the past for older devices, which seemed to have multiple cells,but unable to switch from one to the other without a reset. it'll be good!
[HD2 Accessories] aussiebum:
Looks like Mugen Batteries is finally releasing extended batteries for the HD2!

They're offering a 1300mah same-size replacement at the moment for $39.95 (USD I think). Sorry can't post link since work is blocking the website for some reason :|

Have had good impressions with Mugen - they don't BS on the capacity unlike the other Chinese manufacturers and seem to be generally well built.

My last battery with them (1500mah for the HD) worked as advertised, so if they're offering a Standard Size 1300mah that's probably the largest realistic capacity avaliable...
[HD2 Accessories] xjangoonx:
heres the link

mugen-power-batteries.com/mugen-power-htc-hd2-t8585-1300mah-extended-replacement-battery.html
[HD2 Accessories] AbdullahT:
why should I spend a 40$ for extra 70 mah only !! I mean come on, the difference between the original battery and this one is not that much and maybe the original battery will perform batter than this.

with this price, the battery should at least has much higher capacity (e.g 1500 mah)
[HD2 Accessories] xjangoonx:
if u dont like it then dont buy it. simple.
[HD2 Accessories] aussiebum:
Because Mugen are one of the few 3rd party battery manufacturers around that don't fake their battery capacity figures, like that Chinese made "1600mah" battery someone posted earlier.

Their batteries are also well-regarded by other XDA users.

If you prefer cheap batteries with exaggerated capacity figures and the possibility of it exploding in your pocket due to poor quality control that's your choice.
[HD2 Accessories] chongbh:
I just received my battery today and now charging it, will see how it performs after fully charged. :p