Database Develop

Home made battery for XDA

I've been having a helluva time with the new (internal) batteries available in the market ever since the original Furukawa battery died - the new batteries dont seem to be able to hold charge as well as the original one.
I was wondering whether it would make sense to connect two original nokia batteries (the bl5 looks thin enough) in parallel and connect them to the XDA using the same circuit board that's attached to the furukawa.
(If this works, the battery would maybe even provide more power than the original one!)
Anyone know if this would work?
The nokia battries are about 800mAH each, so if I connect them in parallel, would that raise the rating to 1600mAH?
Cheers
Omi

delayed answer but.. still...
Having an OLD battery on my thing... I'm also considering a "home made battery". Yes, it can be done.... I see no major problems. But remember that a battery = battery + protection circuit. If you put them in paralel, I guess it would be a better idea to strip the two nokia batteries from the protection circuit and use only the ORIGINAL one....
But this is still theory, I didn't tried it yet. But, I'm considering.
The best solution would be in finding a BIG flat battery, not connecting two in paralel.....
bye

If the batteries have the same voltage, and you still have your old one, you could open up all 3 and replace the cells from the nokia with the old cells. The use some shrinkwrap or tape to cever the old on up and plug it back in. As long as the voltages are the same (and they should be if you swap just the cells) then yes you'll have a much higher capacity battery to play with.

which is the best battery for xda iis

hi all,
I've just bought a 2nd-hand XDA iis and is battery is not so good.
So I intend to buy a new one.
But I'm wondering which bat is the best now.
I've gone to ebay and see that they have some types: original 1500 mAh, 2400mAh, "slim" 3200 mAh and "fat" 3600mAh.
I think the 3600mAh is the most suited for my xda.
Is there any better choice? Where could I buy it?
With the 3600mAh, how long would the xda would last if I use wifi IE with the lowest backlight?
Do any of you have any problems with it?
Could I use my old charger or Do I have to buy a bigger one?
Could I still use my usb-cable (not cradle) for charging my xda?
And is there any conflict with WM5? (I've just read in our forum that someone have problems with WM6).
Thank all of you so much.

son_volam002 said:
But I'm wondering which bat is the best now.
I've gone to ebay and see that they have some types: original 1500 mAh, 2400mAh, "slim" 3200 mAh and "fat" 3600mAh.
Click to expand...
Click to collapse
I would say that primarly it would depend on if a 'fatter' and heavier phone bothers you.
Keep in mind that just about all the cases and various accessories that hold or clip on to the phone are designed for a phone that has the original battery, so a thicker battery may well make them unusable (cases are the primary example I would give).
How long it would last is impossible to say, as it depends on how you use the phone, what apps are on the phone, and so on. Also, 3rd party battery quality does vary. Which manufacture is the best, I can't say as I've never seen any place that reviews battery life.
I've never heard of any incompatibilities when talking about a particular version of win mobile and a certain capacity battery, and can't imagine that it's even possible.
Pick one and see what you get, then post the results here so the every one else can benefit from your experience.

jdc said:
I would say that primarly it would depend on if a 'fatter' and heavier phone bothers you.
Keep in mind that just about all the cases and various accessories that hold or clip on to the phone are designed for a phone that has the original battery, so a thicker battery may well make them unusable (cases are the primary example I would give).
How long it would last is impossible to say, as it depends on how you use the phone, what apps are on the phone, and so on. Also, 3rd party battery quality does vary. Which manufacture is the best, I can't say as I've never seen any place that reviews battery life.
I've never heard of any incompatibilities when talking about a particular version of win mobile and a certain capacity battery, and can't imagine that it's even possible.
Pick one and see what you get, then post the results here so the every one else can benefit from your experience.
Click to expand...
Click to collapse
At last, I've bought a fat 3600 battery and I think it's a good decision.
Now, I can use my fone for browse Internet in near 6 hour with wifi; or I could use it with 5 day stanby (how amazing).
some small problems are:
- the fone is thicker and heavier (no problem with me).
- My third party charger is a bit hotter.
- And the charging time is longer (ofcourse).

do not by batteries by ACME power. I have bought 2400mAh and feel no difference compare to standard old battery. Besides, I have troubles with bt. it turns off by its self with only this battery.

I bought a battery for my Htc Harrier about 4-5 months ago. Sorry i dont know the brand of it but its says its 3200mah and "replacement for XDAIII". The inside of the battery is kind of bloated out from the heat and looks a little dodgy but still works. Ive had a few problems with it where it powers off for no reason. When i turn it on again the battery charge looks fine.
Just a couple of days ago for the first time my phone just completely hard resetted and lost all my data. I again turned it on and the battery charge was fine. im blaming that on my battery.
I use my phone mainly for listening to music on my bluetooth headphones while im driving to school and for typing things out on my bluetooth keyboard at school. The standared battery that comes with the phone simply has not enough charge time to do all this.
With all its annoying problems i still use my battery. I just make sure i back up my most important things on my storage card. And charge it every night.
Soon im going to buy a HTC Blue Angel due to my countrys crappy plans that the Harrier comes with. Maybe i might buy the 3600mah while im at it.
So my advice is if you dont need the charge of a extended battery then stay away. Unless you are like me and need the extra battery power then beware of some stress ahead that it might give you.

How **** is this battery?

Very **** it would seem. I only used tomtom for about 15 or 20 minutes today and played a couple of vids for a minute or two. Nothing else I can think of and no phone calls made. The fully charged battery this morning was giving me low battery status by the afternoon. Wtf? This is the 900 mAh one that came with it.

I last a full day with frequent internet/video/game use. maybe 2.5 hours of that stuff, 1 hour of text messaging, 1 hour of phone calls, 30 minutes of just dicking around, and the rest of the time with it in on in my pocket.
there's a bigger battery available - the model is "BP E270"

well with stock battery i was able to watch 2hour film...than battery was at 10% from fully charged..so battery is disaster....

if you would convert video for hardware accelration - it would not use 90% of battery, only 40% )

if you use a different ROM, some are more efficient with battery life.
also, there are third party batteries as big as 1800 mAh. be warned that this is just the manufacturer's claim and they're usually made in China. I think a site called dealextreme has it for the cheapest but there's a ton of different versions on the net. most bigger batteries come with a bigger back plate to accommodate the extra size. most do not have the "diamond" detailing.

I've got the 1800mAh Cameron Sino and it works brilliantly. I can leave the Wifi on all day, make calls, browse the internet without too much worry of the battery giving out half way through the day. With the origonal battery (900mAh) I practically gave up on the phone and used a Nokia E51 instead. The only downside to the new back cover is as tacky as hell and you need to put some tin foil over the GPS Antenna for it to work.
However, I can actually use the phone now on a day to day basis. Oh and the phone stands on its side now due to the extra thickness so I can watch TV progs etc without holding it.

I might try for a more powerful battery but not one of those oversized ones with bigger backplate. And I'm not sure I'm ready to risk a different rom, I'd frankly be bricking 'bricking' it.
What amazes me is, why did htc supply such a weak 900mAh battery in a phone which undoubtedly requires MUCH more power than say, my artemis, and that came with a 1200mAh battery. Doesn't make sense.

Yuna said:
if you would convert video for hardware accelration - it would not use 90% of battery, only 40% )
Click to expand...
Click to collapse
i am converting films for hw acceleration,i use mp4 for hd to convert them and than i use htc album to wact movie....and battery is disaster
also i am using nuedynamicclock but it only helps at night(it should help also when ppc is on cause i reduced voltage for 528MHz(from 1.35v to 1.1v),and i am using rom that is tweaked for minimal battery usage...it helps a little bit but not enough
900mAh is way to low for this device...
also if i want to buy new battery i need also new backplate so my diamond will be fatter???

[FAQ] Extended Battery is not Recognized correctly (discharging like the original)

the forum here is full with problems of people who did get a cheap chinese battery from ebay or somewhere else, that is not recognized by their htc hd2 and is discharging at the rate of the shipped original small battery.
also the forum is full with "solutions" that are NOT WORKING that WILL NEVER WORK.
this is the reason for this thread to give the people the one and only answer to fix their problem!
first of all, be sure to have the newest firmware to have the extended battery driver.
but this will only solve charging problems if you got one of the first shipped firmwares.
after that get the ORIGINAL EXTENDED BATTERY. also the 2300mah battery from the company "leicke" is working for me. (looks identical to the original extended battery, maybe its the same)
this batteries will be recognized correctly and will discharge in the right speed!
--- got a chinese "noname" battery? ---
your battery is crap like most other extended batterys for hd2. get another one, but continue reading the rest of this thread before!
i had a cheap 2400mah chinese battery before and had the same problem.
the thing is, that these chinese batteries are faking, they are normal ones because the driver of the hd2 origininally didnt support bigger batterys in the first roms.
the chinese batterys are out of date (they only added a kickstandcover) and also the capacity is mostly a giant fake!
i disassembled my chinese cameron sino battery and here is the result: its made of 2 small batteries pakaged in one frame and controlled with one chip that is sending fakedata to the phone, also the temperature is recognized wrong because it doesn't really have a sensor! it always shows 25,X°C all the time. like i said: totally faked data
tip but not a solution: if you discharge your chinese battery to 0%, remove it and put it back into the device, you should have 50% again, but thats no calibration because a calibration of this batteries is not possible!
my "leicke" battery did cost 21 euro incl shipping and is working correctly, also the high quality cover with metal-kickstand is fitting perfectly, not like the chinese ones that never fits!
dont try to fix the problem with hints and tricks or calibrations, it will NOT AND NEVER work with the cheap crappy chinese batteries! i already tested it!
i hope this thread is helping the most people with their cheap-battery-problems.
thanks for reading

Cheers for the info,,,, really was dissapointed with the cheapo one i got the other day..... Could you provide a link for the leicke battery?
~Many thanks in advance....
Mikeanywhere

here is the link of my battery: http://www.amazon.de/LEICKE®-Akku-7VDC-2300mAh-Akkufachdeckel/dp/B0043DOCFE
working 100%
i paid 20.99,- euro 3 weeks ago included shipping inside of germany. current price is 15,- euro without shipping

thanks very much! on order now...

How long does the Leicke battery last by you ?? By me not too long , just a littel more than the original -.-

for me it lasts with wlan on and permanent internet using ca 10-12 hours (and still is not empty). in standby-mode many days and maybe weeks with windows mobile. (under 5-10% draining a day with phone on)
it lasts nearly the double time of the original battery. i can tell you, that the 2300mah are the real capacity and how long your battery lasts depends on your systemsettings, phoneusage etc.
i use battclock to control the current powerdraining. with wlan on it is ca 140-300mah but mostly a little bit under 200mah. so you can calculate yourself how long the battery lasts until it is empty

I'm using the licked battery too and can confirm that it works correctly with the hd2. With current android builds the battery last for 3 days with moderate use. If you can live with the bulky shape, the leicke is definitely a great alternative to the official HTC extended battery. Cover and stand are also quite ok, aluminium cover would be nicer but can surely not be expected at such a low price.
Sent from my HTC HD2 using XDA App

I use the cheap China batterry 2400hr
I bought off ebay for $14.00 US shipped and it works perfectly. The back cover fits like it was made for it. Snaps on cleanly and has never come off or stick up on the edges. The battery charges with Android and WinnMo to 100% and lasts for days. Most of your charging problems may be your rom or radio version. There are probably multiple makers in China so some may be better than others. My Cheap China works works okydoky!

can you share the companyname and capacity of your battery? many people are interested in that

Here is the current link.
It has gone up a little bit. Just bid on it to get the cheaper price. There are several in his store. I got mine several months ago. Just buy a cheap silicone case and cut a hole for the cover to stick through on the back. Works good and looks fine. Only HD2 snobs will know any difference!
http://cgi.ebay.com/2400mAh-Extende...211159?pt=PDA_Accessories&hash=item4cf386c897

Just bought the Leicke too.
Unfortunately it does not charge at all in WinMO
I use an NRG rom.
It seemed to work in Android but it went really fast downhill at 50% at 7% or so it was at 3.9 Volts which is rather high to be at that %.

maybe your rom don't support extended batterys. try another one like the oem rom from htc and test it.
the first roms didn't charge real extended batterys.
and you need the right android kernel for extended batterys because many kernels are buggy,
i use the kernel of froyo sense 2.4 and its working perfectly

Which WinMo rom are you using Schildzilla?

i am using a german rom called "EPS V5" - it is only a little tweaked oem rom with the newest drivers

thanx a lot.. i'm gonna update the kernel

Its nothing to do with the battery , its the android os and he kernel which is main cause of the battery not getting detected where the manufacturers are putting in the code which only detects the stock battery and thus your extended battery reports and drains like the normal battery.
I have a mugen 4800 for my dell streak and because of dell's coding my battery is not getting detected on froyo and on gingerbread, however it is getting detected properly on android 1.5 and 1.6 so its nothing to do with the battery. I agree to your point regarding the kernels having the extended battery support and that is the main cause for this reporting error.

Thanks! Great info mate

Leicke Extended battery only charges when switched off
I've just bought the extended Leicke battery (from Amazon @ £15.)
When plugged into either my laptop or to the mains adapter I get orange and green alternating blinking lights and it doesn't charge. When the phone is off, the light is constant orange and charges.
I have the standard WWE ROM 3.14.405.2 and have just reapplied the same ROM in case I've done something to cause the problem.
This FAQ seems to confirm that the battery won't charge when the HD2 is on as a result of something that HTC have put into the Kernel to try and make sure that we only buy HTC branded batteries. It seems that I will need to go to a custom version, although I may just leave it off over night when charging.
Thanks.

Hi guys,
Got an HTC extended battery. Not recognized by my hd2 running Pdaimatejam WP7 ROM Ver-7.1. I have read though many threads on XDA, but no solution !
After charging in magldr mode for 10 hrs it shows only 55 %. And the battery tool by HTC only shows capacity as 1230 , while the actual capacity is 2300.
Can any one guide me to a wp7 rom which will recognize the extended battery.
Sent from my HD7 T9292 using XDA Windows Phone 7 App

I would also need some help, the "stock" MIUI ROM doesn´t recognize the Leicke extended Battery...
Could someone please help me with all this Kernel stuff etc. I´ve read a lot but I don´t know what special Kernel is compatible with what ROM...
EDIT: Is it an alternative to just buy an externel battery dock so that you could just switch the battery if it´s empty?

[Q] eBay High Capacity Battery?

I have ordered 2 high capacity batteries for my new HTC HD7 and DHD.
They are simply higher capacity batteries but not made by HTC.
The Desire HD battery is 1600mah (standard is 1230mah) and
The HD7 battery is 1500mah (standard is 1230mah)
My DHD is aweful with its standard battery - I won't even touch it once in the day and after 6 hours it will only have 1/4 left of battery!
The HD7 is much better and seems to last the whole day with call and text use but it is always on its last legs towards the end of the day - I imagine that these batteries will offer at least another 2 hours of good use a day to these phones.
My question really lies in the safety of these batteries... they are not HTC batteries - they are made by some oem somewhere in china I would guess and I don't know if they are likely to leak and damage my phone or not with extensive use. Does anyone have any actual experience with such batteries on their phones?
I did actually buy 2 spare oem batteries for my Nexus One from eBay and have never had problems with them however I have never used them for a sustained period so I don't know for sure...

i am also interested in this. ive seen a few 1500mah batteries on ebay. but my concern is if they are really 1500mah. they could just throw a sticker on there that says so.
as for safety, as long as the batteries output is equal to that of the stock hd7 battery i dont see why there would be a problem
you'll have to let us know how they work when you get em. i might end up just getting one here pretty soon though

It's not recomended and it is risky.Those batteries can really damage your phone and in some extreme cases you can even lose your warranty.You can find this hot topic in various forums, I read a Blackberry user buying one and after 3 months working presumly better the battery started to literally mealt, ouch ! (could have been a bigger ouch btw lol). I'd wait for an extended battery but I'm new to the world of HTC and don't know how they would react. Nokia in 2006 launched a program which replaced some particular batteries and delivered increased cappacity back.
OR buy a 2nd original battery. It's the safest decision and 2460 is still better than 1500

I bought a battery like this for my Treo 700wx. Worked great for awhile and than it started to die really fast. I put back the stock battery and it would even start to die on my pretty quickly. After that, I never would buy another extended battery. Seems hit or miss but just wouldn't trust it again.

^ Exactly. Forgot to add that their cycle life is a lot shorter. While with an genuine one you could go even for years, for an extended one you should expect 6-7 months at best.

Don't buy these batteries. They all look the same and I'm guessing originate from the same supplier. I bought one and it didn't fit quite right, and I worked out the label was misaligned, so I peeled back the label to line it up and low and behold the battery itself said 900mah despite being labelled 1500mah and "replacement for desire hd".
Blatantly trying to rip off users who are desperately trying to get a little better battery life, ironically they are actually getting a lower capacity battery! Beware! Also note, I've had my hd for a month now and the battery life has improved hugely, I always get a full day now! Although its in power save mode by bed time. I have though invested in an external 5000mah portable battery charger for use when I know I'll be away from mains or usb, a much safer option.
Cheers!
Ps this is by far the best smart phone I've owned, iPhone, blackberry storm, palm not a bit as good as this, wish it could deal with outlook meeting requests though, ie accept, reject, send...only fault, and I can live with it for how amazingly it does everything else.

yly3 said:
It's not recomended and it is risky.Those batteries can really damage your phone and in some extreme cases you can even lose your warranty.You can find this hot topic in various forums, I read a Blackberry user buying one and after 3 months working presumly better the battery started to literally mealt, ouch ! (could have been a bigger ouch btw lol). I'd wait for an extended battery but I'm new to the world of HTC and don't know how they would react. Nokia in 2006 launched a program which replaced some particular batteries and delivered increased cappacity back.
OR buy a 2nd original battery. It's the safest decision and 2460 is still better than 1500
Click to expand...
Click to collapse
I've bought plenty of generic batteries and have yet to have my phone blow up in my pocket.