Re: Mugen Power Batteries
 

Yeah I want to have a look at this. I have the SDK installed at home, but haven't had a chance to get into Maemo devel yet :(

Re: Mugen Power Batteries
 

Attached is what I am getting now.

Looks like the bar and percentage is accurate. I am not sure if I am just that flat and under 100% and some more charging will put me up to closer to 200% and bars useless again.

Normally I am 8 bars and then none and powered off in seconds once I run out of juice. This is better :)

Re: Mugen Power Batteries
 

i been reading threw the pages here, but i am getting no real answer of battery life, other than battery meter not working or bulky ph. please give me
battery life compare to original nokia battery please maybe even a poll would help

Re: Mugen Power Batteries
 

Yes, I am happy, if not very happy with the Mugen's bigger battery.
The battery really is 2400 mAh, as advertised, no scam.
I've had the battery since February.

At first, they had a design flaw, that microSD-card and camera was not working normally because there was a small magnet and a white patch missing from the back cover. I fixed those myself, but later also got the new working back cover from Mugen.
I still use the old cover though, because it has extra space underneath where I have BT-dongle, USB-microSD-adapter and 2nd microSD card. The new cover has this space filled and "a hack" is not possible.

The battery gives just enough extra power comparing to the old battery, that I can really enjoy GPS-tracking, web-surfing through WLAN and other stuffs. It gives 180% time comparing to the factory battery 100%.

I don't think N900 with the bigger battery and Mugen back cover is too thick or big, when I remember what benefits I get with it. We just cannot go around physics. Li-Ion batteries won't get smaller per mAh.

The only problem is that N900's closed source BME is miscalculating the bigger battery capacity. It is either a bug in BME-system, or in Mugen battery's resistor.
See: https://bugs.maemo.org/show_bug.cgi?id=9789
In practise, this affects how you see your remaining charge in programs like BatteryGraph and BatteryEye. But still the phone will work and shouts for recharging when the voltage goes below 3.6V. The voltage measurements are correct fortunately in BME.

The back cover does not affect camera at all.
On the contrary, it is better, because it does not have the shiny silver frame around the lens which sometimes causes troubles with the standard back cover.

I do not have photos of the N900 with the bigger battery and back cover, but the Mugen's page has one photo. And then this is true on the page: "This battery adds 7mm thickness to N900. It will be 25mm."

Re: Mugen Power Batteries
 

It gives 180% battery life compared to the original battery's 100%.
2400 mAh vs 1320 mAh. The battery really is 2400 mAh, so no scam there.

T.k.
 

Well just two days back i got this DURASTAR BL-5J 1700mah battery form a whole sale shop it costed me almost 13 US dollar.....

It is Great i could not fine any where on net the astimate time for those batterie mentioned before.....

Well it is Second day and man it is still full....
yesterday i got it by 6pm and the shop keeper told me to charge the battery full before using the cell....

It was fully charged at 8pm till then my N900 was recieved about 10msges then i pluged my cell to tv and listed to two music videos
the before going to bed i listed to some music tracks and played block game for about 30 mins then in the morning i have recieved some calls about 15-20 msges....
took a few pictures and amazingly the battery is still full....
It battery is excelent as compared to the original which i got with the set ......

Re: T.k.
 

I guess it will suddenly drop to 0% at an unpredictable moment and phone will switch off.
It is more easy to believe in broken capacity meter circuit in chinese batteries than in outstanding performance. Well, i've seen batteries that report weird values quite often.

What does battery graph report?

Re: T.k.
 

I want one...!

something like this ?
http://cgi.ebay.com/1700mAh-Capacity...-/220441132363

Re: Mugen Power Batteries
 

thats what im wondering f2thak
27 people have already bought that so it must be decent
plus for 10bucks why not?
going to order now

Re: T.k.
 

is that battery has the same size as the nokia BL-5J???

i hope that wont heat extra when OC'ing

Re: Mugen Power Batteries
 

obviously....... he has it in the n900

Re: Mugen Power Batteries
 

saw one on ebay, on the illustration, it is the size and thickness of the nokia bl-5j

Re: Mugen Power Batteries
 

@zimon:

I have also the mugen-power with the new backcover and I think also, the thickness is not to much. But my question, the problem with BME. Do you know, is the recharging from batterie correctly? I think, the time is to short for this, from zero to 100 percent, I must wait only 3 or 4 hours, in the specification from mugen i should wait 12 hours for the four times?! When the lamp is green, the recharging is stopping? Sorry for my bad english, I'm german man.

Re: Mugen Power Batteries
 

I have also bought this mugen power battery for N900 and got it just a few days ago.

bonsai009 I would just ignore the battery indicator and green light and charge the battery while the device is on for fully 12 hours and repeat this procedure 4 times (as is stated in the manual) ... at least I am doing that; just 2 times left ;)

So my first impressions are quite positive; the battery lasted for at least 18 full hours (after that I went to sleep and in the morning the battery was empty, so it could be even a few hours more), before that it lasted half of that time (the original one). I don't know if I'll gain even more time when the battery will reach its full capacity after this initial charges? WLAN connection was on all the time, except if a had to use 3G, during that time I watched some video news online, browse, read news online, download, installed applications could update it's data all the time, made a few Skype calls and also chat via Skype, used bluetooth connection for a few hours, the CPU is of course overclocked etc.

... so I am pleased :)

Obviously the phone looks and it is even bigger now, the camera has no cover anymore and the small plastic stand behind is also gone. The microSD card works fine (with this renewed cover).

Here you have also some photos (the first are made with N900 and the second one below with the Nokia 5320XM so that you can compare the quality of the cameras): ;)

http://img708.imageshack.us/img708/7132/20100616002.jpg http://img52.imageshack.us/img52/6320/20100616004.jpg http://img710.imageshack.us/img710/4136/20100616003.jpg http://img202.imageshack.us/img202/7414/20100616005.jpg

... and made with 5320XM with 2MP camera:

http://img821.imageshack.us/img821/3764/16062010001.jpg http://img685.imageshack.us/img6/8673/16062010002m.jpg http://img821.imageshack.us/img821/3046/16062010.jpg http://img685.imageshack.us/img685/8...062010002m.jpg http://img821.imageshack.us/img821/4073/16062010003.jpg

Re: Mugen Power Batteries
 

epic post, been waiting for info + photos like this...

the cost is just too high

Re: Mugen Power Batteries
 

Well i have got a Nokia 6600i that beats the pants off the n900 for camera qualty but there again it does have a 5mp camera and the mobile is a fraction of the size.

Re: Mugen Power Batteries
 

@ultravires have you tried taking pictures ? looks like camera is too deep , with flash enabled pics might look overflashed/white

Re: Mugen Power Batteries
 

I cannot really tell 'cause I am not a photography expert, just a regular user, but I don't see any deference between the photos taken (with flash) before and now ...

... as I said I am really not the right reference for this question. Perhaps somebody else could answer better to this one?

Re: Mugen Power Batteries
 

I cant see a reason to not post a picture :)

Re: Mugen Power Batteries
 

And I thought my N900 with Otterbox was huge!

WOW!

Re: Mugen Power Batteries
 

Well ... here you have ;)

Without flash
http://img689.imageshack.us/img689/3249/20100619006.jpg

with flash
http://img85.imageshack.us/img85/6075/20100619007.jpg
http://img687.imageshack.us/img687/1592/20100620001.jpg

with flash during the night (with lights off)
http://img823.imageshack.us/img823/5092/20100620003.jpg

Re: Mugen Power Batteries
 

I have seen many extended batteries on the net that don't increase the phone thickness. One of them is this one: "http://cgi.ebay.co.uk/1930mAh-BL-5J-HIGH-CAPACITY-BATTERY-NOKIA-5800-N900-/200471742882?cmd=ViewItem&pt=UK_MobilePhones_Mobil ePhoneAccessories_MobilePhoneBatteries&hash=item2e ad0c09a2"

But does it work?

Re: Mugen Power Batteries
 

If I understand it correctly, you just cannot void the law of physics (respectively the present technology of producing batteries); if the original battery is 1320 mAh and you want to to have a 2400 mAh battery then it can only be cca. twice as big.

Of course if somebody will innovate, develop, introduce and use some new kind of technology of producing batteries, they could also get smaller; but at moment we are not there yet.

... I could be wrong though and this MP batteries are just so big because of the cheap production using old technology :D

Re: Mugen Power Batteries
 

brought me this battery few days ago ..... battery life impressive initial tests, will be full power in few days after 5 full charges , will tell results

Re: Mugen Power Batteries
 

http://www.youtube.com/watch?v=zwqjQ...eature=related

Who cares about N900's size anymore! :D

Re: Mugen Power Batteries
 

Oh man, I could not see anything else than really ugly fake nails. I found some other Mugen videos though, and that thing have no camera cover or kickstand... and is just to bulky.

Re: Mugen Power Batteries
 

They might be real nails painted.

Re: Mugen Power Batteries
 

Has the newer (less than few weeks old) Mugen 2400 mAh batteries the resistor/thermistor thing fixed and N900's battery level indicator and BatteryGraph gets it right, or not?

That is, I wonder if there has been changes in the battery pack itself since last spring.

Re: Mugen Power Batteries
 

Can the language in english (from dutch)? I have bought the battery on October 22, 2010 and it suits me very well, life is clearly much, much longer than the standard battery, but the battery in which misaanwijzingen measurement application is still suffering and sadness. battery graph shows insane images, for example, after charging he indicates: 0% rate, charge = 5 mA, voltage indication is good and with that the rest is so unreliable. Advice: buy the battery, but feel free to remove any application from your phone battery check.

Re: Mugen Power Batteries
 

Sorry if this has been discussed before but didn't see any posts or threads on it.

I just received my new battery & cover; does anyone know of a compatible slip-over case?

Re: Mugen Power Batteries
 

Way to bulky f that id rather recharge every 4 hours, than carry that massive brick around, the n900 is big enough as it is than having that attched to it.

Re: Mugen Power Batteries
 

Well, to each their own; I myself have the opposite problem. I wanted the phone to be bigger and heavier.

It's easier to hold, harder to forget, and just feels substantial now. And I was constantly running on low battery @1320mah, as I run heavily overclocked with lots of heavy apps, have an always on openvpn session, maintain multiple mail & IM accounts, and use my n900 a lot.

We'll see how it goes, but so far I've been running for 4h and battery's only dropped one bar. :D

Re: Mugen Power Batteries
 

I'd just like to throw it out there that you SHOULD NOT BUY THESE. Two batteries in less than four months completely dead. Glad they sent me a testing unit and I didn't waste 90$ on it.

~Jeff

Re: Mugen Power Batteries
 

Damn. :(

Well, I'll keep my fingers crossed.

Re: Mugen Power Batteries
 

just graced over this thread, but i must admit i have seen many complaining about dead mugen battery's....

my dual option is looking better and better :D
and it is so much more cheaper and with 2750+mAh also better

my dual japod is still just flying and the old dual 'christgift' is being used by 'redkarma'

Re: Mugen Power Batteries
 

argg I had never read that till now. Mine is in shipment from china as we speak.

Re: Mugen Power Batteries
 

There seem to be a number of extended BL-5J connector batteries (ie. those for the 5800). Some of them would probably fit under the Mugen cover..

Re: Mugen Power Batteries
 

They've been suggested before, and it was pointed out that the battery goes in the other way up on the 5800 which means the connectors are in the wrong place so the battery extends the wrong way and they wouldn't fit in the N900.

Re: Mugen Power Batteries
 

Well that's annoying.

Re: Mugen Power Batteries
 

Mine is still fine. I bought it about six months ago and have used it lots.

If what you say is true, shouldn't you be talking about testing units, not "a testing unit"?

What were they testing? Are you sure they didn't make modifications based on your tests?