Database Develop

Mugen MUSCLE-BATTERY: 1800mAh

did any1 got this monster ?
http://www.mugen-power-batteries.co...d-battery-for-htc-legend-bb00100-1800mah.html
it's about 47$
if u do please tell me how it performs ... i heard and read that legend battery isn't quite impressive :| ... i really like this phone ! if someone tried tell me plz! i'm lookin 2 buy a legend myself ( i own a blackstone and is ... about same thing : with light usage hardly 2 days ! )

Legend battery sucks. Anyone had any experience with the mugen brand?

To bad they dont tell what the Whr of the battery is.
And all the "reviews" are of other batteries and a few years old.
Wonder how the managed to engineer a 50% bigger capacity battery in the legend since there is no margin for any physical increase of the battery.

jjs87: Why? The battery can't run on a different voltage so the capacity in mAh is clear enough.

Has the battery been tested?
Any new infos?

come on guys we wanna know!

casca said:
come on guys we wanna know!
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If you're that anxious, why don't you buy it yourself, then you can post your findings here..

Can't we find find those batteries for a bit less expansive?
47 € is not particuliary expansive, but if I can find for less money it would be cool.

creatif said:
If you're that anxious, why don't you buy it yourself, then you can post your findings here..
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I haven't bought it yet because my Legend is new
And for that i Don't know it's real power. At the end of The day with 3g or WiFi always on i have about 30-50% for now.

I bought one, but it is currently out of stock. I think, it will ship July 9th?
When I receive it, I will review it and post my results. I am surprised someone has not yet already done this.

Someone on a Dutch forum has this battery and will report in a few days. I will post his findings here!

tks, i look forward to know how it behaves, but from what i've red, Mugen is an awsome brand with lots of quality products.
lets wait and see

creatif said:
Someone on a Dutch forum has this battery and will report in a few days. I will post his findings here!
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Did he buy it from the same place TC posted or did he get it from a shop in Holland?
I hope the latter since I'm anxious for a hicap battery for my Legend

Yes, I think he bought it on the same website. He hasn't posted anything at the moment though..
Edit:
First review from a Dutch forum (translated from Dutch, so it might be a little iffy):
I've got the Mugen Power Extended Battery for HTC 1800mAh Legend BB00100 a few days now. Enough time (following the instructions) to fully charge and empty the battery a few times. I drained the battery by leaving the phone running Google Maps navigation. Yesterday and today was the first normal use.
Old situation: Before I had this battery, I was happy if the battery could make it through one working day. With light use in the morning, and in the evening with 40-50% left to do some web browsing. If I didn't put it on the charger at night, the next morning it was about 15%, not enough to start the day. Under normal to heavy use I never made it to the end of the day without charging in between.
New situation: With the same kind of usage it's about 70% in the evening. Again some web browsing before bed and no charger. This morning there was still 43%.
Conclusion: I still put it on the charger because I'm still unlikely to make it through an entire day. But what's clear is that I can make it easily through one day even with heavier use, no more charging in between. That makes the purchase worth for me.
Don't expect that you now can navigate for hours without draining your battery because that won't change. That was exactly what I hoped it would cause. Nothing more annoying than a device to with normal to heavy use that won't make it through one day. Striking is that the Battery Graph program (from where I get these measurements) shows that this battery longer stays at 100% and about as steep downhill runs compared to the standard battery.

creatif said:
Yes, I think he bought it on the same website. He hasn't posted anything at the moment though..
Edit:
First review from a Dutch forum (translated from Dutch, so it might be a little iffy):
I've got the Mugen Power Extended Battery for HTC 1800mAh Legend BB00100 a few days now. Enough time (following the instructions) to fully charge and empty the battery a few times. I drained the battery by leaving the phone running Google Maps navigation. Yesterday and today was the first normal use.
Old situation: Before I had this battery, I was happy if the battery could make it through one working day. With light use in the morning, and in the evening with 40-50% left to do some web browsing. If I didn't put it on the charger at night, the next morning it was about 15%, not enough to start the day. Under normal to heavy use I never made it to the end of the day without charging in between.
New situation: With the same kind of usage it's about 70% in the evening. Again some web browsing before bed and no charger. This morning there was still 43%.
Conclusion: I still put it on the charger because I'm still unlikely to make it through an entire day. But what's clear is that I can make it easily through one day even with heavier use, no more charging in between. That makes the purchase worth for me.
Don't expect that you now can navigate for hours without draining your battery because that won't change. That was exactly what I hoped it would cause. Nothing more annoying than a device to with normal to heavy use that won't make it through one day. Striking is that the Battery Graph program (from where I get these measurements) shows that this battery longer stays at 100% and about as steep downhill runs compared to the standard battery.
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Hi,
What about the size of the Mugen Power Extended 1800mAh Battery? Is it the same size as the original 1300mAh one? If not, how much bigger it is? Any photos?
On Mugen website it says:
"The extra size and weight increases pale into insignificance when you consider the true convenience the battery gives... it represents excellent value for money."
Thanks!

hey guys, consider searching a topic i think it's here @ xda about batteries.
It's ridiculous, the best battery currently is the original one from HTC.
All the others either don't have the announced capacity, or don't fully charge.
if I find it i'll update this post.

update...lol
check this guys...
http://batteryboss.org/
the original thread is at http://androidforums.com/htc-desire/66987-seidio-1600mah-extended-life-battery.html
it's an htc desire post but you'll understand what i'm saying.

@ bodjor its the same size otherwise it will not fit in the legends unibody case
Sent from my HTC Legend using XDA App

Mafiatounes said:
@ bodjor its the same size otherwise it will not fit in the legends unibody case
Sent from my HTC Legend using XDA App
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Thanks, Mafiatounes. I thought that logically, but was confused by the statement on Mugen's website ("The extra size and weight...").
So, is it worth buying?

For me its worth buying my legrnds standard battery runs for 8h of heavy use and I need about 12h at least I think only mugen can provide that amount of power
Sent from my HTC Legend using XDA App

Mugen Power 1800mAh battery for htc mozart

Just started using a mugen power extended battery and am getting a lot more use out of the handset, haven't cycled it the recommended 5 times either, so expecting a little more juice as time goes on!Recommended!

Hi judd5000
Good to hear !
I have ordered the 1800 mAh battery from Mugen, hope it will arrive soon.
As soon as I get it performing properly after the correct cycles, I will post my feedback along with phone settings used.
cyb0tr0n

i hope this battery would fix the problem of original battery

I got mine yesterday - even the residual power in it got me through a whole night with GPS on and two email accounts checking once an hour. So far today after first full charge the battery has dropped a little since this morning but is still at about 80% and has been so for at least 2 hours. This is with light to medium use, though I did go out for an hour or so and had to switch from wi-fi to 3G, and I live in a terrible signal area that kills batteries, so so far I'm impressed. If it improves even more with a few more conditioning cycles I think 2 days will be within reach.
Also, and why this would be I have no idea, I seem to have a slightly better signal reception too. This is probably coincidence though, so don't take too much notice of it!

Is this the same size as the original battery or is it bigger? If so do you need a new back cover?

mb76 said:
Is this the same size as the original battery or is it bigger? If so do you need a new back cover?
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exactly the same size

Got just over 30 hours from mine today with light to moderate use, mainly on WiFi but in a bad signal area. And that's just the first charge/discharge cycle so there's more to come. Impressed!

OK, final verdict - the Mugen 1800 mAh battery is much better than the 1300 mAh stock battery and well worth the investment. Once properly conditioned, 24 hours with moderate to heavy use was easily done (GPS on, 2 email accounts on hourly check, an hour or so of newsgroup reading, 1/2 an hour of gaming, an hour or so of web browsing, 1/2 an hour or so on the marketplace, a fair bit of texting and a 20-min phone call in a bad signal area). With fairly light use (email accounts on manual, a few texts, just the occasional 5-min check of Twitter/Facebook and brief web browsing), I've managed over 40 hours and I suspect 2 days is well within possible - I tend to leave GPS on out of habit and have brightness on auto. Knock the GPS off and have brightness on low and that'd save a bit more again.
Obviously having a smartphone you don't use a lot of the functions of isn't ideal, but if you go away for a long weekend and forget your charger, it's good to know you can make it through (if you have the right battery!).

just ordered one.

How much is it?
Sent from my 7 Mozart T8698 using XDA Windows Phone 7 App

I bought a 2430mah Battery and han have everything turned on all day. Heavy usage equals 15-20 hours of Battery life. Will update name... I paid 22gbp british currency. http://www.ebay.com/itm/13054206017...X:IT&_trksid=p3984.m1497.l2649#ht_2154wt_1113
Sent from my 7 Mozart T8698 using XDA Windows Phone 7 App

where can I get one of these from in the uk do you know?

Ebay
metalgearslug said:
where can I get one of these from in the uk do you know?
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As I wrote before... it worked wonders for me:
http://www.ebay.com/itm/13054206017...X:IT&_trksid=p3984.m1497.l2649#ht_2154wt_1113
I should mention that charging time is long... I recon at least 2 hrs for from 0% to 100%.

Is there a way to get a performance comparison between the Mugen battery and this GOLD 2430MAH Japanese one? Thanks

2430mah? so almost DOUBLE the capacity of the original battery, but the same size?!
That's actually physically impossible. If you're lucky this fake "Gold" battery is 1600-1800mah.

50% better than original...
​
i9o said:
Is there a way to get a performance comparison between the Mugen battery and this GOLD 2430MAH Japanese one? Thanks
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My 2430mAh is no match for a two day mugen, but still quite a bit better than the original. In my case appx 50%.

you're probably right
Aphasaic2002 said:
2430mah? so almost DOUBLE the capacity of the original battery, but the same size?!
That's actually physically impossible. If you're lucky this fake "Gold" battery is 1600-1800mah.
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guess you're right, but now I have a Battery that laste a full day.

the_Enlightened said:
guess you're right, but now I have a Battery that laste a full day.
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with the mugen i can do 1.5 or 2 fully days

I am afraid all these batteries are produced in Asia, Mugen included. If we assume the Japanese one is truly Japanese, perhaps this latter is better, but I doubt it, due to its unrealistic capacity.
Given the obvious environmental concerns related to the manufacture of batteries in China, I certainly prefer to wait until some good alternative is provided by a German company (usually very efficient in these jobs). ATM there's nothing convincing on ebay and amazon.
If you are in Europe this involves in addition having batteries shipped within the EC and no extra customs' costs!

i9o said:
I am afraid all these batteries are produced in Asia, Mugen included. If we assume the Japanese one is truly Japanese, perhaps this latter is better, but I doubt it, due to its unrealistic capacity.
Given the obvious environmental concerns related to the manufacture of batteries in China, I certainly prefer to wait until some good alternative is provided by a German company (usually very efficient in these jobs). ATM there's nothing convincing on ebay and amazon.
If you are in Europe this involves in addition having batteries shipped within the EC and no extra customs' costs!
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Click to collapse
Just take some research,u will find That mugen is the biggest manufacturer of battery
& every stock battery is from china because all the company build them there for Save money
so if u wait for an european battery well good luck ^^
Just keep in Mind to not buy a batterry on eBay,it can be dangerous

[Q] 2430mAh Battery

Has anyone tried this GOLD 2430MAH BUSINESS BATTERY FOR DELL STREAK MINI 5 battery here? (Just check it out on ebay, i can't link it because i'm a new user)
Wondering if its worth getting it or if I should just get a cheaper pack with a charger and 3x 1800mAh batteries? Mainly looking for an extra battery to take with me on long car trips so I can use the phone more like a tablet, but I wouldn't hate having a longer lasting battery for daily use either and then using the stock battery as my extra.

Parasitic said:
Has anyone tried this GOLD 2430MAH BUSINESS BATTERY FOR DELL STREAK MINI 5 battery here? (Just check it out on ebay, i can't link it because i'm a new user)
Wondering if its worth getting it or if I should just get a cheaper pack with a charger and 3x 1800mAh batteries? Mainly looking for an extra battery to take with me on long car trips so I can use the phone more like a tablet, but I wouldn't hate having a longer lasting battery for daily use either and then using the stock battery as my extra.
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this looks interesting..one thing good about it , is that is the same size as the original dell battery.

I think its a fake capacity, the largest capacity that fits as standard size offered by a decent battery manufacturer, Mugen Power is 1800mah, and if you read the threads here, there is a 2400mah extended battery that has to use a custom battery cover because the battery is twice the depth of the standard battery.
So, i think you will find its not really a 2430mah battery, but a 1800mah battery at best.

if it seems too good to be true...
The best bet is to get one of those external battery packs with 3000-6000mah and a spare cable.
Also be agressive in your control of screen brightness and data use

If you read the feedbacks of that seller on eBay. There are heaps of negative feedbacks from buyers calling him a CON.

I bought off amazon since it had to be shipped to India... think there was only 1 seller in Amazon and he seems genuine.

There's a point with batteries where to make them any more powerful you must make them bigger. If fitting 2430ma into an 1800ma package was possible Mugen would have done it, so yes the rating is a lie.

REF: Gold Battery 2430mAh on eBay...
Total fake and ripoff!! ...so dont be wasting your money...
Here, read "all about it" from my experience in another parallel forae - "conclusion" after testing, on post #21: http://forum.xda-developers.com/showthread.php?t=1305779

Parasitic said:
Has anyone tried this GOLD 2430MAH BUSINESS BATTERY FOR DELL STREAK MINI 5 battery here? (Just check it out on ebay, i can't link it because i'm a new user)
Wondering if its worth getting it or if I should just get a cheaper pack with a charger and 3x 1800mAh batteries? Mainly looking for an extra battery to take with me on long car trips so I can use the phone more like a tablet, but I wouldn't hate having a longer lasting battery for daily use either and then using the stock battery as my extra.
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Sorry. Thought you asked for the regular 2400mah.

hi, i bought this battery 2 mounth ago and my phone authonomy is double now. so dont coment if you dodnt try!

Do dell sell them?

Probably a con, but what the heck… I just purchased it. If it’s not 'as stated', I’ll report the bugger.

could keep us posted about this, i looked at the seller's feedback and seems it is fake but wondering if that is true.

The Americans have a saying "You can't put a quart in a pint pot" and that applies to battery power as well. Don't waste your money.

Irritatingly, battery capacity is only shown on the battery itself and not in the device’s battery info. So, is it really 2430mah? Don’t know. But there IS a difference. The 1530mah stock battery ran out of juice alarmingly quickly – like falling off a cliff - when at 30-40%, yet ‘Business Battery’ allows heavy use (downloads, browsing, video… etc) right down to single digits. So now I can use Streak much more (I’d say several hours more of constant use) when battery level is below 50% without worrying if it’s going to suddenly die on me. No gain between 100-50%, though.
I was prepared to slag this off, but from my experience it’s genuinely longer-lasting, especially at low battery levels. How long the battery itself will last only time will tell.
I’m not prepared to test it against Mugen’s 1800mah and spend near 30 quid (plus £18 p&p) in the process.

I've read elsewhere that the cheap Chinese batteries often don't report the available power in as many steps as a 'proper' one does, so they appear to fall slower.
I don't know how old your Dell battery is but it might not be as good as it used to be when new.

Yep, I had to replace the Dell battery (after about 10 months use) because over the past week it became completely unstable – dropping to 70% after 30min use, suddenly back up to 95%, and plummeting from then on. But the stock battery right from the start was always weakest when two-thirds empty, and it drained juice even on standby. Last night it was 100% or ‘fully charged’ for over 3 hours (mostly on standby and some light doc editing)… that had never happened before.
The thing is actually stamped ‘made in Japan’… aren’t Japanese products supposed to be expensive? Looks suspect, but whatever. If it becomes unstable after a month or two then sure, I’ll invest in a nice new Mugen or Dell replacement. But as of now I’m fairly content with a £13 Ecell batt.

Got one of these last week, & have put it through a few recharge cycles etc, unfortunately, it's no better than the stock battery
Oh well, it was worth a try..

As with all cheap batteries it has a short life - no more than 2 or 3 months before it starts to rapidly drain. As a temporary and inexpensive solution it's fine, but don’t expect long-lasting quality.

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!
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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!

eCell extended battery

I recently bought one of the eCell Gold 4500mah extended batteries from Amazon. When I looked this morning they were no longer in stock. It is an extended battery that uses the stock battery door. Just barely. It is a very tight fit. But I had my doubts as to it really being 4500mah. I just finished my 3rd charge cycle on it and I must say that I am impressed with the results so far. The majority of the screen on time was using FBReader to read a book. I also did some gaming, interenet browsing, texting, and made a few phone calls. I don't know how long it will hold up. I will report that after a month of use.

Does NFC work?
Sent from my SCH-I605 using xda app-developers app

Is the battery physically larger than the stock one? If it isn't I doubt it's 4500mah...as many "gold" batteries claim much more life but use the same size.
Could you post pictures of this battery side by side with the stock one?

Do you have a link to where we can get one?

ElAguila said:
I recently bought one of the eCell Gold 4500mah extended batteries from Amazon. When I looked this morning they were no longer in stock. It is an extended battery that uses the stock battery door. Just barely. It is a very tight fit. But I had my doubts as to it really being 4500mah. I just finished my 3rd charge cycle on it and I must say that I am impressed with the results so far. The majority of the screen on time was using FBReader to read a book. I also did some gaming, interenet browsing, texting, and made a few phone calls. I don't know how long it will hold up. I will report that after a month of use.
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I don't think you should trust that "Battery Management" app to actually give you the capacity for the battery you use. In that app, you actually type in 4500 mAh for what you think the capacity is and then the app just estimates drainage around that number. It's not reliable to measure the mAh for a battery this way.
From looking at your Android battery usage breakdown, it doesn't look any different than what a stock battery would do. Your on screen time looks particularly low for a 4500 mAh battery should provide and looks in line with the battery stats in the battery stats thread where people use stock 3100 mAh batteries.

Don't know about NFC as I don't use it. Physically it is slightly larger than the stock battery. I don't know where you could get them now. I got mine from amazon. As far as the capacity, I doubt it is much better than stock but for me it is getting about the same or a little better on screen time as my stock battery did. Maybe the stock battery I got wasn't that good but I couldn't get 8 hours of screen on time from it. The eCell was only $20 so that is not a bad price. For a gold battery the performance is pretty decent.