Database Develop

extended batteries

Speaking as someone who uses their phone pretty darn constantly, I'm in need of a battery that lasts a bit longer than the stock.
currently, Seidio is selling an extended battery (I would link, but as a noob I'm not able to..) 1750 mAh - no new door required, but only a gain of 450 mAh..
Verizon has stated there's a 2150 mAh extended battery coming, but that will almost certainly require a new back plate.
Anyone spotted any other compatible batteries yet?

I ordered the Seidio one and while it fits behind the stock cover it also adds a bit of weight, which is great considering how light this bad boy is.

Seidio is also going to release a 3500 mAh battery in the near future! According to their website, it adds 3-5 mm of width. But for the extra battery I think it will be worth it. The only problem is I am debating on purchasing this because I had one for my tilt and well it flat out sucked after a month of use.

what do you mean it flat out sucked after a month, the thickness or the capacity of the battery?

The battery itself would barley last a day if I was lucky. Seidio just said it needed to charge like 8 times before it was full. It didn't kick in. Is this rare?

mcwoods said:
The battery itself would barley last a day if I was lucky. Seidio just said it needed to charge like 8 times before it was full. It didn't kick in. Is this rare?
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Did you let it fully drain till the phone died, and keep turning the phone on until it wont turn on anymore. Then charge it fully, unplug when it is fully charged, let it get back down to 90-95%, then fully charge again, let die & repeat. Do that a few times and your battery life should be better. This is what I do whenever I get a new phone...

We use LiION Batteries, No special charging required
OK, to start, there is NO NEED to do any special charging conditions with Li Ion batteries, it does not matter how they are charged. A standard battery will have between 400 and 1200 charge cycles before it loses 50% of its capacity (1200 if you charge at 50%, 400 if you charge at 0-10%, like when the phone quits on you). Ni Cadmium on the other hand does require special charging situations but we don't use them in cell phones because of the mass. You can do take the advice of the previous post, but if you do that I would suggest sacrificing a virgin symbian phone or doing a handstand while plugging in your phone to charge. That might increase the battery life too.
Secondly, I spoke with Verizon, and their 2100 mA extended battery will be available soon and it is supposed to fit with the stock backing, probably the best way to go if you ask me, only $60 too. I am checking their site almost daily waiting for this to become available since like many, I need more battery life, I find that I can barely make it through the day without being conservative with the use, and that's on a work day when I'm not on it that much, on the weekends I have to charge it in the afternoon.
If you want to save on battery, turn down the screen brightness, chose a background with as few colors as possible, the more black the less battery you will use since its an AMOLED, blacks mean there is no power being used on the screen. Turn off your GEO locations services both on the phone settings and in programs that run a lot. This will easily save you 25-30% battery life.

Drstovetop said:
Secondly, I spoke with Verizon, and their 2100 mA extended battery will be available soon and it is supposed to fit with the stock backing, probably the best way to go if you ask me, only $60 too.
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I was at a Verizon store yesterday asking about it and they showed me their documentation. Their extended battery will come with a new back cover that is slightly raised to fit the larger battery.
I'm waiting for this too because it looks like it will be the most aesthetically pleasing option.
Too bad the guy had NO idea when the accessories were going to become available. Ugh.

kenkamm said:
Too bad the guy had NO idea when the accessories were going to become available. Ugh.
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Verizon doesn't trust their employees very much - to prevent leaks, they don't tell people about equipment/accessory release dates til within about two weeks of the actual release. The Incredible launch announcement had one of the longest announcement to release times I've seen the the last two years.

Read this post on extended batteries and non oem batteries
http://forum.xda-developers.com/showthread.php?t=649770

I used my OEM TP2 battery which is rated @ 1500 mah last me now to the end of the day with moderate use.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=230439043798&ssPageName=STRK:MEWNX:IT
for those with budget oem tp2 only $14.99 and fits in original back cover

i got my seido battery yesterday and it lasted me all day and I used it more than I usually do just to see what it could do... 1.5 hours of slacker radio at the gym... games and internet for an hour at work while on break... several phone calls and I'm still at 40% battery... and it says it gets better after 5 or 6 charges on the box...

theoneownz said:
I used my OEM TP2 battery which is rated @ 1500 mah last me now to the end of the day with moderate use. For those with budget oem tp2 only $14.99 and fits in original back cover
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$14.99 + free shipping for a battery that lasts all day from moderate use? This sounds great and I'm ready to buy it now! ... But is it safe to use this battery with an Incredible?

two_cents said:
i got my seido battery yesterday and it lasted me all day and I used it more than I usually do just to see what it could do... 1.5 hours of slacker radio at the gym... games and internet for an hour at work while on break... several phone calls and I'm still at 40% battery... and it says it gets better after 5 or 6 charges on the box...
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That's sweet. I'm guessing you're referring to the Seidio 1750 mAh battery? Where did you get it from? Thanks!

miketlo said:
Read this post on extended batteries and non oem batteries
http://forum.xda-developers.com/showthread.php?t=649770
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Click to collapse
I dont know, but my seideco 1750 def gets me 3 more hours a day on my Incredible. I have switched back and forth from stock and the extended...the extended wins EVERYTIME...so Im not sure about that report.

@ suzook
I read that my OEM TP2 rated as one of the best.
TP2 OEM standard issue Rated @ 1500mAh Tested @ 1414mAh
Most Likely our stock incredible battery has a lower mAh then it actually states it is.
@ Xxq TZ pxX
Yes it will work because its in my phone now working like a champ ;O)
I also told someone else here like myself who swapped from the tp2 ====> incredible and he seen it first hand as-well.

TP2 batteries work fine
Hey all,
The TP2 battery works fine. Same size and 200mAh more than stock... in fact I've seen them sold on Fommy.com as the thin extended battery for $44.95. Don't be fooled, and just go buy the TP2 batteries. They're cheaper if you don't need the therapy session of a rebranding.
Enjoy!
P.S. Got a workaround for Skype too...

I'm sure a number of HTC CDMA phones have interchangeable batteries.
I swapped out the 1500mAh battery from my Sprint Hero and put it into my Incredible. It's easily out lasting the stock incredible battery.

I ordered the 1500 HTC battery as well. Between those to staying charged I am not worried about it.
Also anyone know of a battery charger for these types of batteries?

For those of you that want a red 1500mah battery I found this but im not sure if its oem or not it just says its an htc extra capacity battery hxxp://shop.htcpedia.com/index.php?dispatch=products.view&product_id=825

HD2 Lithium Polymer Battery On Ebay!

Well guys, this would be a first:
http://cgi.ebay.com/Htc-HD-2-batter...311?pt=LH_DefaultDomain_0&hash=item3cb4d8f5af
But hold on though. It almost looks like a plain old re wrapped Li-Ion battery. The guys feedback makes me skeptical, too. Looks like he's new to Ebay.
Thoughts?

I believe its the same old crap. They say its 1600mA. But in reality even worse than standard 1200 mA. Price talks for itself.

AntonJart said:
I believe its the same old crap. They say its 1600mA. But in reality even worse than standard 1200 mA. Price talks for itself.
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You know I see alot of talk about these 1600mah batteries from Japan and alot of speculation, but I have never seen anyone do any real world testing. I was planning on buying one of the 1600mah batteries and doing a setcpu stress test on it as well as the stock battery and record the results of how long it took each to fully discharge.

FireDemonSiC said:
You know I see alot of talk about these 1600mah batteries from Japan and alot of speculation, but I have never seen anyone do any real world testing. I was planning on buying one of the 1600mah batteries and doing a setcpu stress test on it as well as the stock battery and record the results of how long it took each to fully discharge.
Click to expand...
Click to collapse
Do it! If you become the guinea pig and the battery is indeed better, then you would be a hero in these parts lol.

The last battery I bought was a 'genuine' htc 1200mah from an amazon seller, turned out to be a fake that was obviously not htc.
Be careful with testing unknown batteries from unreliable sources, the fake one I had got very hot and was a poor fit into the phone. These phones are very temperature sensative and you would not want a lithium fire inside your HD2!

So is anyone willing to do some battery tests? I would be so happy if I could use a 1600 mAh battery and not need one of those huge, bulky battery covers.
Sent from my HD2 using XDA App

You should be very careful if you try a battery from an unknown or not certificated source. I read about many cases, where people bought some cheap batteries which turned into a little bomb, because of some reason. and i don't know if i want to end up in a roll chair for my whole life just because of a 20€ cheaper battery. A battery can damage your phone not only by heat. Such batteries have also some extra hard- AND software for controlling purposes integrated and if there's a problem, it could cause other problems in your phone.
The normal 1230mAh battery is not very bad, one day for such a huge display and some other features is enough. and if i have to go to the jungle and can't charge my phone i will buy the bigger battery and won't mind about the thickness of my phone ^^
Just my thinkings

Silberpfeil3110 said:
The normal 1230mAh battery is not very bad, one day for such a huge display and some other features is enough. and if i have to go to the jungle and can't charge my phone i will buy the bigger battery and won't mind about the thickness of my phone ^^
Just my thinkings
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Click to collapse
I actually can confirm, I can go with my phone with minimal to moderate use for several days. But when I am at work and playing with it nonstop - 4 hours maximum. That is why I got myself a GTMax battery

AntonJart said:
I actually can confirm, I can go with my phone with minimal to moderate use for several days. But when I am at work and playing with it nonstop - 4 hours maximum. That is why I got myself a GTMax battery
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Click to collapse
I would also agree with this statement. None-the-less, I ordered one of the 1600mah batteries yesterday. We're gonna have to wait a few weeks for it to clear customs however before I can do any testing.

Not the first...
I have the andida 1600 Ma and it is labeled as Lithium Polymer.

I bought a 1600 mAh labeled battery from eBay which came with very good packaging and even a tin case. The labels on the sticker make it seem fancy and trustworthy. However, in my experience comparing that battery with the stock HTC 1230 mAh battery, there is no increase in uptime. On Aondroid both batteries read 1230 mAh. Even though the 1600 mAh battery claims to have that capacity it really does not. I even weighed both batteries on a scale. The 1600 mAh Li-on battery weighs less than the HTC original battery.
Sent from my HTC HD2 using XDA App

yassy said:
I bought a 1600 mAh labeled battery from eBay which came with very good packaging and even a tin case. The labels on the sticker make it seem fancy and trustworthy. However, in my experience comparing that battery with the stock HTC 1230 mAh battery, there is no increase in uptime. On Aondroid both batteries read 1230 mAh. Even though the 1600 mAh battery claims to have that capacity it really does not. I even weighed both batteries on a scale. The 1600 mAh Li-on battery weighs less than the HTC original battery.
Sent from my HTC HD2 using XDA App
Click to expand...
Click to collapse
It's not possible that a stronger battery is as big as the stock one. most of these people only put another label on a stock battery (or rebuild battery with the same power) and sell it for a higher price. I'm sure you won't get a Li-Ion battery with the same size as the stock one but stronger. With a Li-Po battery it's makeable but not easy and they'll have a higher price because of that.

Silberpfeil3110 said:
It's not possible that a stronger battery is as big as the stock one. most of these people only put another label on a stock battery (or rebuild battery with the same power) and sell it for a higher price. I'm sure you won't get a Li-Ion battery with the same size as the stock one but stronger. With a Li-Po battery it's makeable but not easy and they'll have a higher price because of that.
Click to expand...
Click to collapse
The price makes me suspicious as well. I don't notice a lot of difference in device up time with my Andida battery, but it is still new and it may increase as I get past those initial cycles.
... if I don't reflash more NRG ROMs! They give strange readings for the first few battery cycles after a flash. I just flashed one yesterday, so it will be a while before it settles down.

The Chinese knockoff battery got here today. We're about to find out if it can hold It's own once I put it through the first few charge cycles.

It's sad that I'm able to get an 1800 mAh battery for my G2 that isn't appreciably bigger than the stock 1300 mAh, but there's nothing equivalent for my HD2.

Can't you return it. There should be eBay's buyer protectiontion just say buyer gave you the wrong item

Another Extended Battery 1600mah Question

So, I haven't looked for extended batteries in a while, Andida 1600mah only seems to be only as good as the OEM
Has anyone tried
http://cgi.ebay.com/New-1600mAh-hig...Accessories&hash=item230c3be16b#ht_2919wt_905
http://cgi.ebay.com/1600mAh-Recharg...Accessories&hash=item4aa8dd5ffe#ht_1160wt_905
Are they better or the relatively the same?
Appreciate any thoughts and comments

When you see it from China, consider it FAKE.

i've got the second one. i don't know if it's true that have 1600mah but for sure have more long lasting than the original

xxljmzlxx said:
So, I haven't looked for extended batteries in a while, Andida 1600mah only seems to be only as good as the OEM
Has anyone tried
http://cgi.ebay.com/New-1600mAh-hig...Accessories&hash=item230c3be16b#ht_2919wt_905
http://cgi.ebay.com/1600mAh-Recharg...Accessories&hash=item4aa8dd5ffe#ht_1160wt_905
Are they better or the relatively the same?
Appreciate any thoughts and comments
Click to expand...
Click to collapse
The fine print on the second one is exactly the same numbers as on my Andida battery.

Thanks guys... I don't understand why no manufacture can produce a slim extended battery. It would make the HD2 so kick ass

Is the Andida 1600mah battery actually thicker than the default battery? Seing some ebay photos it seems to me that they are the same size and there's no need for extended back cover for the 1600 batt. Anyone can confirm this?

Its not 1600 mAh. Maximum it has is 1300... Most users reported it to be of less capacity than standard one.
Sent from my HD2 powered by HyperDroidGBX

optyqus said:
Is the Andida 1600mah battery actually thicker than the default battery? Seing some ebay photos it seems to me that they are the same size and there's no need for extended back cover for the 1600 batt. Anyone can confirm this?
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Click to collapse
It is the same size, but my HD2 shows about 1230 mA when fully charged. Still, a decent price for a replacement battery.

Price
Anyone tested this Battery?

LOocifur said:
Anyone tested this Battery?
Click to expand...
Click to collapse
You mean with a meter or something? My tbattery program indicates they are 12296 at full charge.

I have the 1600 mah battery and it is more powerful then the original u have to condition it first or you wont get the right amount of power after about 4 charges on it and then I had to charge the original 2 to 3 times a day but with this 1600 once a day and thats using wifi and other apps

Can you tell us how many mV you get at full charge?

http://cgi.ebay.com/New-1600mAh-hig...Accessories&hash=item230c3be16b#ht_2919wt_905
This one is pure crap.
It lasts 2/3 comparing to original one and battery monitor widget shows the full capacity of 963 mah.

Whats with this?
h**p://cgi.ebay.com/High-capacity-2400-mAh-battery-HTC-Touch-HD-2-HD2-/190431776814?_trksid=p4340.m263&_trkparms=algo%3DSIC%26its%3DI%252BC%26itu%3DUCI%252BIA%252BUA%252BIEW%252BFICS%252BUFI%26otn%3D10%26pmod%3D150529106283%26ps%3D63%26clkid%3D8932829703575826571
Thinking about to buy it.
( Replace the ** , cant post Links under eight posts.

Mmm, if you want to go with big capacity & extended cover try finding original HTC extended battery & cover on a promotional offer.
Almost all of these extended batteries from China are junk with data chip sending false battery MaH data & many close to stated capacity batteries don't allow HD2 to utilise it without soft reset.
personally I went for a USB charge pack working from 4AA batteries, I loaded 4 UniRoss 2100MaH hybrio AA cells & it works great.
size is 68mmX63mmX18mm so easily to slip in a pocket or bag.
I get 2.5 charges from it, have total control over cell quality & MaH rating & it cost me less than $13 including new AA hybrio cells.
Just another option to consider perhaps.

I know a good store that sell many extended batteries for HTC, But now i cant send the link , forum cant accept that. if you are interested, send me the message.

Just type link address without www or replace a w with an asterix. Users can figure it out easily enough & copy/paste then correct address in browser bar.

Luis2012 said:
I know a good store that sell many extended batteries for HTC, But now i cant send the link , forum cant accept that. if you are interested, send me the message.
Click to expand...
Click to collapse
I'm interested in OEM or well tested after market batteries.

PepsiBlue said:
I'm interested in OEM or well tested after market batteries.
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Click to collapse
I have gotten good service out of the Andida batteries. They advertise 1600, but they are actually the same output as the OEM batteries. But they are inexpensive. Some people have reported very low output from them, but that has not been my experience. Just don't expect 1600!
http://cgi.ebay.com/1600mah-Battery...796?pt=LH_DefaultDomain_0&hash=item3cb710b754

Question
Has anyone tried using HTC Desire HD batteries for their HD2? I just ordered these HD2 batteries that are 1350 mAh on an eBay store located in Brooklyn. They are 2 for $8, I figured worth a chance for only 8 bucks, but I'm still thinking 1350mAh still won't be enough. The HTC Desire HD batteries are 1500 mAh and almost look like they'd fit, but I'm unsure. Right now I'm running my HD2 on the Desire Z ROM that is rooted, I think it's made by Dandiest and Freak. This ROM is seriously the best out of the 3 I've tried. With it being rooted I was able to download the battery calibrator on the market and it has increased my battery life significantly. I'm still on the standard 1230mAh battery and I charged it to 100% and unplugged it at 8:49 AM and it's now 8:28 PM(I'm in Germany) and it has 40% battery. This is just mild usage though. Any suggestions, or anyone know if the Desire HD batteries would fit and work?
Please Help

Batteries - need some help

Hello everyone,
I bought some time ago an Andida 1900 mAh battery but I'm pretty sure the mAh declared is only nominal.
Now I need a good battery so that I can at least cover the day I spend at work (about 10 hours). I have to say that since my phone is the only access to the internet I can use in those situations I need to keep it always connected and this drains the battery, obviously. More over, I got Whatsapp (it should have push notifications, iirc), TweetDeck (updating every 6 hours, so it should be approximated to 0 energy draining), one GMail in push and one K9Mail in push as well.
With the Andida, I almost didn't use my phone and from 8:00 AM it's not at 75%. Pretty bad, in my opinion
So I wanted to ask you which battery would fit better the spot (I'd prefer the stock back case, otherwise docks I bought for my phone would be useless )
I found some that could go, but I'd need some advices from who already tested them:
Mugen 1700 mAh
eCell 2430 mAh
eCell 1800 mAh
Droidax 1600 mAh
So far I know Mugen Power are the best batteries (and saw the price, they must be the best ), but I wanted to be sure I could to a full work day with a charge (price is a minor issue, better to buy a good one once than 3-4 "less good"...)
Thanks in advance for helping me
Tiwiz

Problem is that "nobody knows". You'll always find always mixed reviews based on psychological changes or usage never being the same!
Unless someone tests the batteries with exact measuring instruments this topic will result useless

I know it is quite hard to give me a feedback (I couldn't say myself how much improvement brings the Andida battery) but I knew Mugen are good, just wanted to know if someone already tested it or not and if it's worth to buy it
Tiwiz

Why not get a charger/battery combo from ebay? Charge one while at work and swap when needed, then charge the other... Or get yourself a desktop stand with charger, I got the original LG desktop stand and it's pretty good actually (as far as desktop chargers go ofcourse!).

I have good Results with "POLARCELL". Used this Batteries in the last Phones as replacement of the Original one if they's gone bad.
(Polarcell 1600mAh)

I think that the oly solution is to have two batteries and use an external charger for the second battery.

Extensive Review - Mugen HD2 Extended Battery 2,600mAh

Disclaimer: I know there is already another thread on Mugen HD2 Extended Battery 2,600mAh, but I would like to state that this is an official review since Mugen has provided me with a review unit to debunk the many bad comments given concerning their battery quality. This you can read from http://forum.xda-developers.com/showthread.php?t=1294124.
[BACKGROUND]
I have contacted www.mugen-power-batteries.com directly after hearing many comments concerning their false claims. I was surprised that they actually responded by providing me a review unit of the 2,600mAh. It is now on the way.
My review unit will be coming in about 2 weeks time. I will try to conduct an extensive review to determine the actual worth of the battery and whether they work as advertised. I will be conducting a few tests specifically on the battery, as objectively as possible. This would cover video playing, 3G usage, full valuation of the battery charge (using battery widget pro) to name a few.
If you would like a particular test to be conducted on the battery, please state and give a few ideas below. I will be comparing them against the original 1,230mAh from HTC.
I think as faithful users of our HTC HD2, I would really want to get the best extended battery. If this provides even 90% of the advertised capacity, it is already worth the money. Anything less would be pointless.
Thank you.

Larger cell will indeed be good but 2600mAh will be higher than reality as Mugen have admitted this already in a round about way on responses to another testers results.
A new standard HTC cell & new standard size 1500mAh Mugen is the test that needs to be done.
Any chance of a sample 1500mAh review unit ?

Mister B said:
Larger cell will indeed be good but 2600mAh will be higher than reality as Mugen have admitted this already in a round about way on responses to another testers results.
A new standard HTC cell & new standard size 1500mAh Mugen is the test that needs to be done.
Any chance of a sample 1500mAh review unit ?
Click to expand...
Click to collapse
I will try to get a 1,500mAh review unit after this one is done Oh, have Mugen admitted to that? Would be good if you can provide me with the link. Thanks!

Cant Wait for the review
Im Planning on getting one myself a 2,600mAh
BOOKMARKED

erlern said:
I will try to get a 1,500mAh review unit after this one is done Oh, have Mugen admitted to that? Would be good if you can provide me with the link. Thanks!
Click to expand...
Click to collapse
This was response to Dougs battery testing.
Not in any way slating Mugen but the mAh ratings marked on their cells are higher than what would be achieved in any lab test.
1500mah is the one I would love to see tested side by side with genuine cell in device & technician mAh testing.
Mugen cells are ok quality but for the asking price we need total transparency on actual cell capacity ...

I have no idea how good that battery is, but I bought this one about 6 months ago and it's working very well, doesn't gain much heat and it doesn't discharge itself much. Average battery consumption in standby is 6mA. All I can do is recommend you guys this one. And cover is really strong. And it's "bit" cheaper than Mugens
[email protected]/MB434B/review_MB434B.html

looking forward to seeing your test results...i just got me a 2400mAh battery and it lasts me about 15hours under heavy use...

Hi guys,
Sorry for the silence... I just received the battery today! Give me some time to get it charged and conditioned for testing
Let me know what else you would like me to test it with.

Display use is interesting for me, such like browsing etc.
Open a browser with some ads or something and look how long the Battery live..
My Galaxy SII gets there 4,5h.
Start the Match

Idc really care about that battery. I know its fake, but is there any real battery that's better then the original stock? 1400, 1450, 1500?? Not the fat ones with the kickstand

Just an update, I am still conditioning the battery. The first charge/recharge was really pathetic, at 12 hours before it was flat (moderate-heavy use). The second charge/recharge is much improved, I am on 25 hours on (moderate use) with 25% left (taking pictures, listening to music, games, surfing, etc.). I will begin formal testing after 4 full runs to find the optimum condition.
One things I have to say is that the ROM does play a high factor. I was on Dorimanx 3.0 and somehow the governors for oc/uc is not working properly as I kept getting some high drainage. Once I reverted to 2.9, the drainage was gone and it seems to sip battery at a much, much lower rate.
So many factors!!!!
By the way, I really like the battery cover. It is not cheap like the other China made products (unlabelled). I have already 4 different covers, and while I would prefer a metal back cover, this is the 2nd best

Can You please also start the heavy display usage test?
And put some pics please
Greetings

erlern said:
Just an update, I am still conditioning the battery. The first charge/recharge was really pathetic, at 12 hours before it was flat (moderate-heavy use). The second charge/recharge is much improved, I am on 25 hours on (moderate use) with 25% left (taking pictures, listening to music, games, surfing, etc.). I will begin formal testing after 4 full runs to find the optimum condition.
One things I have to say is that the ROM does play a high factor. I was on Dorimanx 3.0 and somehow the governors for oc/uc is not working properly as I kept getting some high drainage. Once I reverted to 2.9, the drainage was gone and it seems to sip battery at a much, much lower rate.
So many factors!!!!
By the way, I really like the battery cover. It is not cheap like the other China made products (unlabelled). I have already 4 different covers, and while I would prefer a metal back cover, this is the 2nd best
Click to expand...
Click to collapse
I have a few questions which i hope you dont mind answering:-
1. How did you recondition the battery?
2. Does your kernel recognise the battery's full capacity or do you do a battery pull then it jumps back up significantly? Im facing this problem at the moment...
thank you in advance!

how long will the battery last for heavy use like playing 3d games?this is important as i use my phone for gaming most

damnshah said:
I have a few questions which i hope you dont mind answering:-
1. How did you recondition the battery?
2. Does your kernel recognise the battery's full capacity or do you do a battery pull then it jumps back up significantly? Im facing this problem at the moment...
thank you in advance!
Click to expand...
Click to collapse
1) I conditioning it by charging it overnight for 6-8 hours and then depleting it until it powers off (Actually, this is based on the instructions they gave in the parcel). I need to do it 5 times. Once done, I will be able to charge and stop charging when the indicator hits 100%. I basically use Battery Widget Pro (they have a feature called 'calibration'). Apparently, the battery itself states that it is 2,300mAh, but I think this is not accurate (hence the testing). You will know that the battery is fully charge when the indicator goes down to 0 (zero) mA (shows that the battery is not receiving any more charge).
2) Most cheap batteries have wrong indicators (e.g. temperature detection is not working, no indication of battery capacity). And yes, they suffer the need to 'pull the battery out first' before an additional amount is given. I bought one a while back, apparently one that has 3,000mAh. My observation is that the indicators are really gone. In fact, it will slowly go down to 50%, after which if you pull, it will give you 70%, once it goes down to 15%, it will last for a long while (30 minutes of browsing over 3G) before going down to 14%. Using that battery, I have been able to last 31 hours of moderate use (1 hour of music, 1 hour of gaming - not 3D, a few hours of browsing and a lot of photo taking). It costs only USD12 (thereabouts), which to me is the best deal yet. Down side of that battery is the very poor back battery cover. Using Battery Widget Pro (you have to charge fully and discharge until it shuts down and charge up again continuously), I got an estimated charge capacity of 1900mAh. Not bad don't you think?
The Mugen 2,600mAh easily matches my fake 3,000mAh one. The question is by how much. Sorry for the delay but my HD2 is my daily phone. So, I cant conduct full test like Engadget and other websites. But I'll do my best

relldroid said:
Idc really care about that battery. I know its fake, but is there any real battery that's better then the original stock? 1400, 1450, 1500?? Not the fat ones with the kickstand
Click to expand...
Click to collapse
Try Andida batteries. I had the 1600mAh one and it was slightly better than the original (giving me about 1300mAh). I had that a while back.

After much charging and recharging, I can confirm that the battery has about 2,200+mAh. See the attached images to see the estimated calculation using Battery Widget Pro.
Charging takes about 2 hours plus using the wall charger. The last 2% takes the longest.
As per request I ran 2 emulation apps (sorry, no 3d games), fpse & n64oid. The former ran Strider 2 while the latter ran Legend of Zelda: Ocarina of Time. Do note that I have overclocked my phone to 1.6ghz. All in all, it ran for 4.5 hours with 15% battery left. I'm pretty sure it could have clocked 5hours easily. I think that it is a good performance for 2.2kmAh battery don't you think? See the images below for a read of what other apps I was running. I managed to deplete the whole charge after nearly 10 hours of extremely heavy usage!
What do you guys think? Okay?
Sent from my HD2 using xda premium

[Not the Mugen 2,600mAh Battery]
As an aside, I took and strip out the cheap battery which I bought for USD10, which claimed a 3000mAh, which only was about 2000mAh (+/- 200mAh) and took some photos of it. I can understand these extended batteries better. I am not an electronics person, but this would explain why it takes a restart to 'recognise' the 'remaining' battery on our devices.
Notice that they are basically two lower capacity batteries which are slapped together with the thin connectors and wrapped together with scotch tape.
I am not sure whether Mugen's the same, since it does not suffer from the 'restart-phone-to-get-additional-battery-reflected' scenario. However, I wonder whether there are any manufacturers who would just manufacture a genuine 2000mAh without merely slapping two products together (like in this picture). In light of this, it is much better to carry an external battery charger (anything more than 6,000mAh around!).
Anyone with electronic expertise want to comment on the pictures, please do.

Opps, forgot to add the photos of the battery and the battery cover which I mentioned. I find that after the first fall (yes, I tend to have accidents with my HD2 ... ) there is a slight creeking sound with the battery cover (nothing is chipped though). It is a rubberised battery cover, unlike the original metal cover. Still, the feel of the cover is great to the touch.

I am no longer using this device, but my dad is! It still works and have survived loads of damage... mostly dropping the device with the battery cover!