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HTC G2 1800 mah Mugen Power battery review and progress

Gooooooooooood evening every1,
I'm Antony and I will be discussing the progress and my personal review on the new 1800 mah Mugen Power battery for my HTC G2 that I bought and received yesterday.
1st of all the stock battery that it comes with when you buy it is a 1300mah battery, which for me is not enough, for I am a very heavy user of the net and I use plenty of apps and games, plus I tinker with my G2 all thee time. That battery would not last the whole day for a person such as I, unless I just use my G2 to text, then I might have some battery left at night till I need to recharge. I bought my G2 in the beginning of Jan and have had it till now which is the 7th of June. So it would be 5 months with it, and I've hated the battery from day 1 because I would use the gps nav to help me get around, and after using it my battery would just collapse in charge =( the necessity of a car charger had to come along, that's not a big deal, but I lost the damn thing. So I noticed my friend had an extended battery for his evo and I decided to search the net for a battery for my G2 ( I love saying it, its just soo damn powerful and fast, it deserves to be called by its name instead of just a phone, we all know its not just that) and I found plenty of batteries; stock, and extended. But just soo many that I didn't know which would be reliable. Then I ran into the Mugen Power batteries. I did research on reviews and what previous customers thought of their batteries. And they were all mostly well, above average, i'd say 4/5 on the scale. Only complaints I found was that they didn't last as much as the stock battery so they thought it was garbage.
Now here is my take on the battery after only 1 day of using it.
I put it to charge for a bit over 12 hours, maybe 15, but no more than 24 for sure, as instructed on the packaging ( instructions were short and simple, nothing techy nor complicated ) and after finishing with the charge I disconnected it, and the battery begins to leak what I believe was battery acid through the back door! Can u believe that?! Nor could I! That's y it didn't happen! Haha, just kidding, as I was, I disconnected it and began using it like I normally would. I had wi-fi on, with the back light low on 25% because I was indoors, and the mp3 player was running. To add to that I went on some social networking website, and various other websites not in search of anything specific but just browsing my interests. Checked my gmail various times and last but not least, browsed the market. After a while my battery was at 75% I did the calculation and estimated that it would last 5 more hours till it hit 50%. And I was approximately correct! It went about 10 hours till it hit 50% I was impressed. The stock battery would never give me a result like that after using it like I regularly would, not even on day 1 out of the box. Now this is only from today as my 1st day of use with the 1800 mah Mugen Power battery. I will continue to use it and post my further results. I will continue to recharge the battery for at least 12 hours as instructed 3 to 5 times. I feel confident that it will give me even better results after completing the charging instructions. I believe that the unsatisfied customers that gave bad reviews might of not followed the instructions to properly charge the battery, they might of thought that it just any other battery that u just charge to 100 percent the second it reaches there and u can immediately disconnect it and use it while expecting to get the 100% charging results... well its not, let me say that they mightve been idiots that cannot follow instructions.
To wrap this up; stock battery sucks, new battery is WORKING! And with great results. Apple can kiss my ass and diamonds are forever.
If you have any questions or comments please post them here, I would like to read about your personal experience with a Mugen Power battery.
HTC G2 (1516mhz in speed!!! Be jealous!!)

You have diamond on your ass? Lol j.k
In seriousness, thanks for the review. I'll have a try at the new battery soon.

You should also calibrate the battery with the phone after mugen's instructions. I plan on getting one of those after a few more reviews.
Sent from my T-Mobile G2 PyroMod 2.0 via tapatalk

No mention as to how much it cost? Lol. And I agree with the stock battery sentiment. Mine died on me today after browsing the internet for 30 minutes max, music throughout the day, and Plants Vs. Zombies for 40-ish minutes. Boo.

It's possible to get if for around 20, maybe 22 euro's, excluding shipping.

I think i'm going to buy one
Do you bought it from the Mugen website ? If not could you give us a link
thx

kamnikaz said:
I think i'm going to buy one
Do you bought it from the Mugen website ? If not could you give us a link
thx
Click to expand...
Click to collapse
here ya go
http://www.mugen-power-batteries.co...nded-battery-for-htc-desirez-t-mobile-g2.html

thanks a lot

Noboo said:
It's possible to get if for around 20, maybe 22 euro's, excluding shipping.
Click to expand...
Click to collapse
Care to provide a link?
Mugen's site lists it at $45 USD, that's about 32 Euros.

I bought 3500 mAh battery from DealXtreme. Cost $11.90 with shipping.
Comes with it's own back plate because the battery is so thick. Very ugly looking and heavy but lasts about twice as long as the stock battery
I can't provide a link or pictures as I am not yet allowed to post links here.

hey, cheers for the review... how many hours in total is it lasting now? and did you have to cut any covers off the battery to make it fit or did it just fit nicely out of the box

but the g2 has kind of a weird back. does the battery stick out and need a bigger cover? how does that look on the g2? (pic please)

Bentso said:
I bought 3500 mAh battery from DealXtreme. Cost $11.90 with shipping.
Comes with it's own back plate because the battery is so thick. Very ugly looking and heavy but lasts about twice as long as the stock battery
I can't provide a link or pictures as I am not yet allowed to post links here.
Click to expand...
Click to collapse
I have one of these batteries. it's quite big and you need to use the cheap cover that comes with it. It's good to have if you're traveling.

My apologies for not posting earlier, battery continues to deliver great results. This battery actually last the whole day. This days results were 15 hours straight on moderate use and still has 30%. Some of you have asked for a link, I believe that I am not allowed to post links, I may be mistaken. But its the 1800mah Mugen Power battery. Its the exact same size as the stock battery. I didn't need to cut anything on it to make it fit with the original cover, fits in perfectly. Here in the United States, it cost about 44 dollars plus about 3 dollars extra for 1st class shipping. I bought it from the official website, if you find a better deal somewhere else, well congratulations, I hope it delivers its full capacity.
Any more questions? Comments?

dj2muchxx said:
My apologies for not posting earlier, battery continues to deliver great results. This battery actually last the whole day. This days results were 15 hours straight on moderate use and still has 30%. Some of you have asked for a link, I believe that I am not allowed to post links, I may be mistaken. But its the 1800mah Mugen Power battery. Its the exact same size as the stock battery. I didn't need to cut anything on it to make it fit with the original cover, fits in perfectly. Here in the United States, it cost about 44 dollars plus about 3 dollars extra for 1st class shipping. I bought it from the official website, if you find a better deal somewhere else, well congratulations, I hope it delivers its full capacity.
Any more questions? Comments?
Click to expand...
Click to collapse
I agree with this. No cutting or bad fit, and is better than stock. Not by as much as you would think from the difference in capacity, but I find it noticeable. Now happy with phone life.

I just got mine yesterday. I left it on the charger for 12 hours, as suggested, and I've had it on for 4 1/2 hours, 3 of that was constant GPS use with the screen on. I'm at just barely 1/2 charge now. At the very least, this will get me through an entire work shift of heavy use.
1800 mah battery. Cost $49 off Amazon, shipped Friday, got here last night.

If I had the money, I would compare this one to the Andida 1800mah battery and post a thread for comparison for that. I have thought many times about getting the andida battery but don't want to spend money on a battery without more juice. I have been saving for this battery for a little while now. Hopefully, I can get it soon because I do have an 1800mah battery for an Evo made by andida.
Yes, it's not the same but it could be used as a comparison for this battery...

I got this battery. It's a barely noticeable improvement over the stock battery.

You might not have the exact same battery that I have. I bought it from their official website. Not Amazon. If you do have the same battery, did you charge it as instructed on the packaging? If you did not, then there is your problem. If you did just as instructed and it still doesn't work, and if its an exact Mugen battery, just like we have, then you may just have a defective battery.
I would post pictures but I am not allowed to post yet.

The review sucks; Very unprofessional, no model numbers, etc.
This sounds more like an ad than anything else.
Second, do you use SetCPU? Im a heavy user (surfing, downloading, angry birds, etc) as well and out of 24 hours about 6 Id say, the phone is idle and SetCPU kicks in downclocking it to 200mhz when the screen is off. In those conditions Ive seen the phone go down to about 60%
Third, do not tell funkeee his battery is defective. Battery life depends on so many other things such as reception, individual components, etc.

dont buy!1800MAH battery Andida

I got it from ebay but it has only 1200mAh as I measured .it is not 1800mAh.in real life even giving worse performance then stock one.avoid it.it is only a big bluff

shihte said:
I got it from ebay but it has only 1200mAh as I measured .it is not 1800mAh.in real life even giving worse performance then stock one.avoid it.it is only a big bluff
Click to expand...
Click to collapse
Thumbs up for the warning.
But...there is a saying that goes "if something sounds too good to be true, it probably is ".

shihte said:
I got it from ebay but it has only 1200mAh as I measured .it is not 1800mAh.in real life even giving worse performance then stock one.avoid it.it is only a big bluff
Click to expand...
Click to collapse
I understand the battery capacity number is hardcoded in the HD, so even if it were higgher capacity, it would still show that.
If you have a multimeter or other specialised equipment, that's the best way. Also, you'll need to run a few charging cycles to get a good comparison.
But anyway, cheap ebay batteries are just that. If you search this section, you will see tens of threads about fake batteries offering high capacity.
The only geniune high capacity battery is Mugen's, there are a couple of threads already about this battery.
(or buy a power-pack/recharger, eg 5000mah for €25-30)

today shows 1176mAh but i will visit tv repair centre.they have better tools then me.i let u know

shihte said:
today shows 1176mAh but i will visit tv repair centre.they have better tools then me.i let u know
Click to expand...
Click to collapse
wow thats real ****...thanks for the warning...Ive heard issue on all the brands that make aftermarket battery...only the original HTC seems to be actually the best performing units.

Not only the stock battery is probably the best performing one, but also the safest. Always be aware of the expansion and the heat that cheap batteries produce. It can damage your phone easily.
As for the capacity measurement, if you drain/charge the battery with higher current, it will show less capacity. Still the measured 1176mAh is probably closer to the truth than the printed 1800mAh.

thanks man for the warning

bad results
after 4th charging still giving shorter performance then stock battery.i will stop at tv repair centre early in next week then post here their measurement.personally i won't expect more like 1200mAh

shihte said:
after 4th charging still giving shorter performance then stock battery.i will stop at tv repair centre early in next week then post here their measurement.personally i won't expect more like 1200mAh
Click to expand...
Click to collapse
To compare the two batteries you should rate them in the same conditions. So if you can leave the stock battery with them to test them both and post the results I would be grateful.
Sent from my Desire HD using XDA App

kelany said:
thanks man for the warning
Click to expand...
Click to collapse
There was a thread for a third party battery expanding in the phone and pressing on the screen... scary
I can't understand why would someone put a 10 euro battery in 500 euro phone!
Sent from my Desire HD using XDA App

Hi,
is there any other seriuos alternative on the market?
Sent from my Desire HD using XDA Premium App

Agreed, I bought one of these Andida batteries from eBay as well, had it in for a couple of months & i've now gone back to the original battery. In my opinion, it doesnt last as long as the stock HTC battery.

I´ve bought this battery last week over ebay and at the 1st day i was pleased, because the operating time with it seems better than with the original battery. But after five daily loading sessions the battery drain gets faster and faster. Yesterday, after 1,5 hours Angry Birds and a little time listening music it runs from 100 to 38%. Today i´ve installed the original battery back and i was surprised. After five days in the drawer of my desk it shows 99% accu state. I will stay at the original.

not 1800mAh
It has only 1170mAh

anyone find a good replacement with higher cap ?

Thanks for warning.

As far as i know there's nothing better then mugen's 1500 =(

Don't look just mAh's, they will not tell all. Also, if HTC's factory battery costs ~30€, who believe that the battery which costs 10 euros, can be better than the original..?
Sent from my Desire HD using XDA Premium App

Hi, always replace a battery with that recommended by the manufacturer ...

I have a replacement desire hd battery. It lasts about 25% less the the original one, and it is set "to be" 1600mAh strong lol

Optimus 3D 3500 mAh battery

tourjefferson said:
Is this battery too good to be true?
http://www.amazon.co.uk/LG-Optimus-...6JR4/ref=sr_1_7?ie=UTF8&qid=1313762076&sr=8-7
It says the battery has 3500mAh which is more than double of the battery that comes with the phone...
I just wonder if that amount of mAh would be possible
Click to expand...
Click to collapse
anyone have tried this battery yet?

Wow that back cover (and the battery) must be HUGE! the camera area is recessed below the surface where the stock one comes out.
I'm sure some kind soul will try it and report back here.
Pete

i ordered one from the uk on ebay, should be here around next week, also i ordered the 1900mah battery which is better than the one that comes with the phone

My experience with these extra-large batteries with alternative battery case, is that they last longer than the original battery for a few weeks/months then last much less to the original.. Soon enough wont even charge.. They have a very short life.
I had one for the N95 8gb years ago.. came also with the extra-space back-lid.. sticking with the official mAhs...

most are the same
i have bought many many batteries for my previous mobile phones
all of them had a good capacity for some weeks or little months
after 3 months last less than my original battery
that kind of capacity with that price is too good to be true
so even if you buy this one dont quckly say it is good
just wait for 2 months of use and then have a conclusion
hope it was helpful

I've had mine for over 6 months.... Still the best battery I own. Easily lasts a whole day of interneting and playing games. Only time it came to low battery was when I was using it to record several hours of 3D footage.
Only issue is the size and weight.....

shredman09 said:
I've had mine for over 6 months.... Still the best battery I own. Easily lasts a whole day of interneting and playing games. Only time it came to low battery was when I was using it to record several hours of 3D footage.
Only issue is the size and weight.....
Click to expand...
Click to collapse
What battery is that? Name, and mAh....
Sent from my LG-P920 using XDA Premium App

can normal size upgrade battery be better than stock?

cinemano said:
My experience with these extra-large batteries with alternative battery case, is that they last longer than the original battery for a few weeks/months then last much less to the original.. Soon enough wont even charge.. They have a very short life.
Click to expand...
Click to collapse
I have the battery OP asks about. And your opinion is right. In the beginning it lasted a lot longer than the original. After a couple of months it was worse than the original and I have used the original battery since.

Anker 1600mAh in UK

One seller on UK eBay has the Anker 1600mAh DZ battery for £7.39 inc postage. That is a bargain price by anyone's standard, so I thought I would give it a try.I was half assuming that it would be poor quality or a knockoff etc.
Had it for a week now. First 3 or 4 charges I was very careful to charge fully overnight and then let it run down to at below 15% before plugging it in again. Full charge/discharge cycles are good for battery calibration and the good for the battery itself (apparently?!)
I have been trying out lots of different ICS betas recently and they have been chewing through my battery pretty quick. Also my stock battery is the one that came supplied with my DZ over a year ago so it was a little tired.
I always charge overnight. On my tired stock battery I would just about get through the working day and would likely need to plug in around 7:00 if I wanted to use/tinker with my phone in the evening. With the Anker I am easily getting through to the evening without going near a power point. So can get all the usage I need on a single overnight charge - perfect!
What I cannot comment on is what performance I would get from a new stock battery. Obviously it might be just as good or even better but for this price these Ankers do a very good job.
I've just ordered two more and a second replacement backplate. Guess I'm coming to terms with the fact the HTC are not going to release a high build quality, high spec, qwerty slider in the near future So we better stock up on spares/consumables whilst they are abundant and cheap

I just started using an Anker battery last week and so far it's working quite well. I've heard that non-oem batteries can lose their capacities faster so I intend to do a rigorous retest a year later.
I'd avoid buying up batteries for use in the future though. Lithium Ion batteries age with time as well and will lose capacity even without use.
For now though, it does seem to come close to the claimed capacity which was nice. I did some tests that were more controlled than simply using it for a day:
Code:
ILWT 285
1.5GHz Performance
Airplane Mode
Minimum brightness
MX Player SW Fast
Stretch Mute
Battery discharged to 89% before recharging back to 100% waiting for the trickle recharge to stop before starting video and unplugging.
Device running until 15% warning which is dismissed and then run until device auto shuts off.
Anker - Claimed 1600mah
375minutes
~250ma
1562mah
97.6%
HTC OEM 1300mah (1.5 years old)
274minutes
~250ma
1141mah
87.8%
I also ran another test with slightly different settings (which meant it couldn't be compared) where the average drain was 300ma:
319minutes
~300ma
1595mah
99.7%

Hi,
I recently bought the Anker 1600 and let AnTuTu Battery Tester run trough and got a Score of 630. In the AnTuTu Score Statistics it seems to be very good...
I am on Andromadus Beta3 (ICS) @1200Mhz
Don´t know what is this in comparision to the stock battery - I didn´t let the test run trough, maybe later. My stock batt is already over 1 yr old and I charged it almost every day or every 2nd day - so I don´t know if the result would be comparable...
Anyone knows about AnTuTu results of the stock battery?

blindio_de said:
Hi,
I recently bought the Anker 1600 and let AnTuTu Battery Tester run trough and got a Score of 630. In the AnTuTu Score Statistics it seems to be very good...
I am on Andromadus Beta3 (ICS) @1200Mhz
Don´t know what is this in comparision to the stock battery - I didn´t let the test run trough, maybe later. My stock batt is already over 1 yr old and I charged it almost every day or every 2nd day - so I don´t know if the result would be comparable...
Anyone knows about AnTuTu results of the stock battery?
Click to expand...
Click to collapse
you should test it with the exact rom, got 466 with andromadus on a new installation 768mhz, can't exactly remember other settings.
I'm seriously thinking of getting a new battery.
Anker doesn't need sanding or an extended battery cover, right? can't understand why the OP needed to buy a new one

No it fits fine with the original cover and is quite cheap as well - bought it at Amazon for abour 13 EUR including shipping. I think 466 is not so bad but I feel that Andromadus rom needs a lot of juice too.
With the new Anker I´ve got more or less the same duration like on cm 7.1 stable with stock battery...

Just got my anker in, excited. It fit perfectly, was @ 67% when I put it in, going to charge it all the way up and see what kind of results I can get with this badboy.
I don't know why but I'm going to trickle charge down to 75 then back up, then down to 50 then back up then let it roll. Me just being stupid.
Sent from my HTC Vision using xda premium

After a couple of recharges now I think the Anker is even getting better - but I am not getting more than 4hrs "screen on" @Andromadus. But for a 10EUR battery not bad.

MaxWiz said:
One seller on UK eBay has the Anker 1600mAh DZ battery for £7.39 inc postage. That is a bargain price by anyone's standard, so I thought I would give it a try.
Click to expand...
Click to collapse
ChronoReverse said:
I just started using an Anker battery last week and so far it's working quite well. I've heard that non-oem batteries can lose their capacities faster so I intend to do a rigorous retest a year later.
Click to expand...
Click to collapse
Hi guys
Could you guys please post here (or msg me) the ebay item number or seller name, etc for this Anker battery?? As even as a highly experienced ebayer with an account now for 11 years old, i find battery buying a complete minefield ........ sooooo many fakes that ebay take no action about.
So if am gonna try one of these, i'd at least like to get a genuine one.
Thanks

Guru Zeb said:
Hi guys
Could you guys please post here (or msg me) the ebay item number or seller name, etc for this Anker battery?? As even as a highly experienced ebayer with an account now for 11 years old, i find battery buying a complete minefield ........ sooooo many fakes that ebay take no action about.
So if am gonna try one of these, i'd at least like to get a genuine one.
Thanks
Click to expand...
Click to collapse
This is the one I bought yesterday:
http://www.ebay.co.uk/itm/220928813853
The seller gets good feedback from this and other forums and I'm pretty sure the batteries are genuine Anker. I believe it's the same seller as MaxWiz used as they were selling the same battery for £7.39 in February.
Can anyone please tell me how to get the best from a new battery? I hear different opinions on 'conditioning' batteries and do's and don'ts of charging/discharging.

Damn good service from the seller! Bought on the Sunday, dispatched on the Monday and arrived this morning. One working day as opposed to the advertised 5-7.
From the packaging, it looks genuine. The seller also uses Amazon marketplace which is probably why it came in Amazon packaging. Learned that 4-5 full charges and full discharges is the right way to treat a new battery so that's what I'll be doing.

I wouldn't fully discharge as its not good for it. Do a little more research, you'll find differing ways but the authorities on lithium ion batteries will tell you a full discharge is unhealthy
Sent from my HTC Vision using xda premium

demkantor said:
I wouldn't fully discharge as its not good for it. Do a little more research, you'll find differing ways but the authorities on lithium ion batteries will tell you a full discharge is unhealthy
Sent from my HTC Vision using xda premium
Click to expand...
Click to collapse
Thank you
As you mention, I've seen a variety of methods, some quite elaborate. The manual that comes with the Anker battery says 4-5 full charges/discharges.
Based on your knowledge, at what percentage would you recommend plugging back the charger?

15 to 20%
Sent from my HTC Vision using xda premium

demkantor said:
15 to 20%
Sent from my HTC Vision using xda premium
Click to expand...
Click to collapse
Thanks, I'll do that.
I made the mistake of not charging it for several hours before letting it discharge. I unplugged when it got to 100% and let it drain to 84% before I read that the first charge should be several hours. I've plugged it back on charge again and will leave it overnight before unplugging. Hope I haven't knackered the battery

I'd also like to buy a battery, but it seems that the eBay seller from the link posted by Chem23 does not ship to Romania.
D'you have any recommendations as to what should I order, that ships to continental Europe (and Romania)?

Just like to say I love this battery. I can easily get 12-13 hours of heavy, heavy use with it. The best I've gone with intermitted heavy use is 22 hours. That is definitely a far cry from the 8 hrs maybe I would get with the stock battery.
Sent from my HTC Vision using xda premium

geojoking said:
I'd also like to buy a battery, but it seems that the eBay seller from the link posted by Chem23 does not ship to Romania.
D'you have any recommendations as to what should I order, that ships to continental Europe (and Romania)?
Click to expand...
Click to collapse
The same seller sells via Amazon as LaptopMateUK. It may be worth looking at Amazon and checking if he can ship to Romania. Good luck!

Just got one of these, looking good so far, been very disappointed with the stock batterys inability to cope with all my tinkering and screen on time, hoping this will be the answer or at least a competent spare to keep in my wallet....

Checked Amazon but shipping is pretty expensive to Romania, higher that the battery itself... I'll check a few local stores, maybe one'll have this battery for sale.

I didn't find any other stores online where they send to the Europe mainland, and since i don't have a creditcard, I'm not able to buy on amazon. Anyone has any ideas where to get it instead?

Polarcell battery?

I am running an unofficial CM 10.1 ROM on my DHD and with 'slight' use I can probably get a full day out of the battery. Prior to the CM 10.1 ROM I was running a custom rooted ROM based on the final official android 2.3 ROM from HTC and I remember the battery lasting much longer (over 12-months ago). I won't be moving back to Gingerbread but want to improve my battery life and have seen good reports of the PolarCell batteries
http://www.ebay.co.uk/itm/390392597069?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
Has anyone replaced their stock battery with one of these? Any comments?
Andy

Would be interested in knowing this also. Dont suppose you took the plunge and bought one?

Hi guys
I would be interested too on this question, or another battery brand.
Only want that someone with experience tell us if possible which battery and what brand/model is the best nowadays to buy to our great Desire HD?
And if you can post the link where to buy and maybe some buyer reviews, would be wonderfully.
Because are too many "Fake" vendors nowadays.
But for some questions that I asked to other few members and one recognized developer, they said that one of best batteries are:
First - Oem
Second - Mugen
Third - Anker
....
That PolarCell I never heard do not know =S
Cheers

I guess dhd battery is a pain in the a** for everybody, I suggest you to go for sensation xe, evo 3d type batteries. There are plenty of ways to do it (with battery door or without) I was personally using without battery door because I was already using silicon cover for all phone. Btw you need to apply a small copper wire for external wireless antenna which is already built-in with your original battery door. Search for thread in this section you will find Evo3d battery thread. I have changed to HOX but still my wife is using my beloved DHD with 1950mah Mugen. Believe me it gives equal amount of satisfaction for this money. If you don't want to spend that amount, go for original Amaze 4g battery (which has the highest capacity when compare with evo 3d if I don't remember wrong) still you will be satisfied with battery life.
Please don't ask me, which rom am I using or how is battery life. It depends on people and how they are using.
I can give several examples, heavy usage with all the time 3g, bluetooth, mail sync, whatsapp, viber, browsing, auto brightness but no games and no wireless: it will handle 1.5 day.
or
Moderate usage, all the time mobile network on, a bit whatsapp, several regular calls, a bit browsing, no gaming and wireless off. My wife can easily manage for 2.5 days.
One more thing, if you will have 1950 mugen, your battery will stuck at %15, don't panic it will stay there for at least several hours (according to your usage ofc). Its some kind of a bug. I don't know if somebody found a solution.
I hope, my reply will enlighten you a bit Cheers!

Been using a Polarcell since october 2012 from the manufacturer CellePhone: (http://www.amazon.de/gp/product/B004I227RK)
New, it lasts the same as the original for me, that means about 3 hours of screen on with about the 70% of the total battery time, automatic brightness but mainly outdoors, so I bet that the auto brightness is actually full brightness the most part of the time, using 3G and no "data sync demanding apps running in background" except whatsapp and the usual google services.
I use to charge the battery every night while I sleep and even though I'm aware that overcharging a long time is harmful I use to let it charge until I wake the next morning.
With this usage schema, I'm facing today a 20% loss approximately, because the battery skips from 80% to 100% when charging.
So is more than a year of usage, around 400 charge cycles, and for 10€ is a good investment for me.
Being from a german company inspires more confidence than chinese clones.
Hope this helps to all of you folks!

A friend of mine picked one up and he had nothing but good things to say. I'll update this post once he replies to my text for exact details!

Bought one a few days ago from http://www.ebay.de/usr/wannsee-electronic (Germany).
The one i bought is for HTC Sensation, sold as 1800 mAh. To fit in DHD i remove the "film" and im surprising to see that on the aluminiumcase of the accu is written 1700 mAh.
Contact the merchant today and wait for an answer. So I didn't know it depends on Polarcell or the reseller...

I just got one myself for Desire S, it is a 1600mAh battery. Been using it for 3 days and I'm quite satisfied with this product.. I also bought one Anker battery for Desire HD....
I can't really compare those cuz its on a different device and different ROM. But I feel that both are doing fine for now..... You can give it a try.
Btw, Anker battery comes with full package, it comes with a box and manual.... The polarcell that I received just comes with a battery with no box, nothing else..
Maybe I would suggest you to get Anker.

Don't forget to use Battery Monitor Widget to see if its actualy a good battery.

I got one today for my old DHD.After couple days of usage I'll post and my opinions.
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I'm very satisfy from this battery.After couple charges for 12 hours each now my battery seems very stable. I'm running 30 hours and more with enabled 3g all the time.30-40 minutes calls including viber and 2 hours and a half display on.I think that this is a very gods result for this product.....cost 13€ .
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