Develop Bugs

[Battery] Extended Battery or just Battery with more "juice"

I'm looking for an extended battery for the sgy of my Girlfriend. I have also the choice to solder two stock batteries together (parallel). But than I'll have a problem with the battery cover. Is there anyone with experiences in extended battery (not external) from sgy? Or is there anybody with experiences in soldering li-ion batteries together?
Thnx
Sent from my GT-I9000 using XDA App

external batt pack need to be chosen carefully, some dont work with SGY (like mine)

mai77 said:
external batt pack need to be chosen carefully, some dont work with SGY (like mine)
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External is exactly NOT what I'm looking for
Sent from my GT-I9000 using XDA App

Does your battery heats up? because mine does.....

Cerillus said:
Does your battery heats up? because mine does.....
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What do you mean? I've not jet built my own double sized extended battery, but I want to.
There are no extended 3000mAh batteries for SGY. So I have to buy two 1500mAh. These I'll solder together parallel, so I'll get a 3000mAh battery and build a custom battery cover
Sent from my GT-I9000 using XDA App

I think you should be carefull since the circuit only tolerate up to 2000mA current.

kurotsugi said:
I think you should be carefull since the circuit only tolerate up to 2000mA current.
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Why? The discharge load is the same, but the battery can support longer the discharge load (mA) at 3,6-3,7 Volts. So I dont put more mA in the circuit, just able to do it longer.
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hey guys, free shipping
http://www. dealextreme.com/p/3-7v-1500mah-rechargeable-battery-for-samsung-galaxy-y-s-5360-black-107728

DerBobo said:
Why? The discharge load is the same, but the battery can support longer the discharge load (mA) at 3,6-3,7 Volts. So I dont put more mA in the circuit, just able to do it longer.
Sent from my GT-I9000 using XDA App
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you sure ccoz i think theyd give a higher voltage rating if put together,,,

zeusseuz said:
you sure ccoz i think theyd give a higher voltage rating if put together,,,
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They give more voltage if you put them in series, but if you put the in parallel they give more amperes

Connecting two batteries in parallel should do the trick but it would take time to recharge the battery. How were you able to create a custom back cover? can you show it to us?

on ebay you find a 10 EURO 1500 mAh batt pack , and a 2800 mAh pack for 15 EURO.
sticks into usb socket.

portable mobile charger 1500 mAh
I got meself one of 'em at 10 EUROs.
it has got a Samsung + mini USB socket to charge it. if stuck into SGY, the bottom face is flush with SGY bottom cover.
at 15 EUROs one gets same thing with 2700 mAh of juice. These things are less hassle than changing batteries.

Porobu said:
They give more voltage if you put them in series, but if you put the in parallel they give more amperes
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Yea but the Device just takes what it needs. So two batteries (1100mA) results (2200mA). The phone takes what it needs (1000mA in a hour may be) so it takes 2,2 hours instead of 1,1 hour until the juice is out
Sent from my GT-I9000 using XDA

3.8v battery safe to use?

I've seen a similar subject for other phones but not for the GNex. I bought some OEM batteries off eBay and turns out they're fake... not only does the NFC not work but they also put out 3.8 volts where the real battery puts out 3.7... Does anyone know if this is safe to use. I really don't want to jack up my phone from using a bogus battery.
With other phones it seems that the main problem is the battery will not charge fully unless charged in the dock. I've used the battery long enough to check the voltage and if the NFC worked then took it out.
Sent from my Nexus 7 using Tapatalk 2

I'm not sure about the gnex specifically. I have an extended battery in my G2 and on "battery widget" it says it's 4.19V, on the battery the label reads 3.7VDC. It is a ebay china battery. I can't say if the widget is accurate or not, but I haven't had any issues on my phone.

Lithium batteries fully charge around 4.2v, 3.7-3.8v is for storing the battery long term. Since at that voltage there isn't much stress on the cells.

Thanks for the info. I'll just have to assume since the guy has sold quite a few of these china batteries that none have blown up yet or else it would have been reported on eBay.
Sent from my Nexus 7 using Tapatalk 2

I am using the extended battery and nothing wrong with it haven't had any problems yet and its been 4 months
Sent from my Galaxy Nexus using xda app-developers app

Chichitec 2500mah extended battery

What's up everybody, I just ordered these & hoping they'll do the job. I've ordered from them twice before (nexus one, evo 3d), the batteries in the past have held up pretty good but I don't think these have nfc :/ I ended up ordering these cuz' the qcell nfc enabled ones were sold out/unavailable so I didn't wanna' wait, plus I haven't seen a review on these yet so I said eh, I'll try em' out. If you guys are interested in purchasing some for yourselves I've included the link below, the only thing is that you have to pay using google checkout :/
http://www.htcexpress.com/samsung-b...-t-mobile-t999-att-i747-us-cellular-r530.html

DOG666 said:
What's up everybody, I just ordered these & hoping they'll do the job. I've ordered from them twice before (nexus one, evo 3d), the batteries in the past have held up pretty good but I don't think these have nfc :/ I ended up ordering these cuz' the qcell nfc enabled ones were sold out/unavailable so I didn't wanna' wait, plus I haven't seen a review on these yet so I said eh, I'll try em' out. If you guys are interested in purchasing some for yourselves I've included the link below, the only thing is that you have to pay using google checkout :/
http://www.htcexpress.com/samsung-b...-t-mobile-t999-att-i747-us-cellular-r530.html
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Hope it offers that extra 19%. If so, I might get myself one too.

art0605 said:
Hope it offers that extra 19%. If so, I might get myself one too.
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Click to collapse
Once I get them I'll update this post with info/screen shots about battery performance
Sent from my SGH-T999 using xda premium

another 3.7v batter that will die very fast if you use your phone to charge, due to overcharging. as our stock batteries full charge voltage is 4.3 where as that one is 4.2v
unless somehow our phones can distinguish the battery difference,

devilchrist said:
another 3.7v batter that will die very fast if you use your phone to charge, due to overcharging. as our stock batteries full charge voltage is 4.3 where as that one is 4.2v
unless somehow our phones can distinguish the battery difference,
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I always use the supplied wall charger that comes with these so Idk, lots of the extended battery reviews on here are the same voltage & they seem to be doing pretty good.

It's not the charger which matters but the phone itself which charges the battery, it's aiming for 4.3V as that's what it thinks it should have as the stock battery is designed for that. Although I haven't heard a single case of these 4.2V batteries having problems with being charged with 4.3V, that last part can be changed in the kernel and the charger chip driver. I'm getting some knock-off cheap battery myself so I'll see how it goes. This particular one seems quite steep in price @ $30, with proven ones like the PolarCell 2400mAh going out for half the cost.

you won't see the affect right away from overcharging. I use to play with a lot of batteries from RC, overcharging something we use to do get slight edge and boost at start. but it does have long term damage to batteries, specially lithium based. some cheaper batteries even catch fire.

Alright guys, got the batteries in the mail today, charging one & will report back later
Sent from my SGH-T999 using xda premium

DOG666 said:
Alright guys, got the batteries in the mail today, charging one & will report back later
Sent from my SGH-T999 using xda premium
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Whoop whoop!

And now we wait..
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

Well here's a couple quick pics, batteries seem to be doing pretty good, this is with some moderate use. I'll continue to drain them & recharge so I can calibrate em'
Sent from my SGH-T999 using xda premium

devilchrist said:
another 3.7v batter that will die very fast if you use your phone to charge, due to overcharging. as our stock batteries full charge voltage is 4.3 where as that one is 4.2v
unless somehow our phones can distinguish the battery difference,
Click to expand...
Click to collapse
Li-ion batteries have an overcharge protection circuit built into the battery pack itself and should prevent this from happening. If everything is working as intended, it should be impossible for the phone to overcharge a battery. That's not to say the protection circuit couldn't fail itself.
And I too played with RC batteries and you really can't compare those batteries with these. Different types of battery with different methods of charging.

It just keeps getting better & better
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Can you post the screen on time?
Send from my GT-I9300 with Tapatalk

I couldn't wait for more info on this battery, so I picked up two on amazon.com for a little bit less.

how's the thickness/back plate?
Sent from my SPH-L710 using xda app-developers app

tkbredx said:
how's the thickness/back plate?
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Based off of Amazon, these batteries are the same size as the stock battery.
From Amazon's Description: "Standard Size Do not need to change bulky back cover, increase battery life"

DOG666 said:
It just keeps getting better & better
Sent from my SGH-T999 using xda premium
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Any updates regarding your experience with these batteries? I used to own this brand for my HTC Sensation and was very pleased with it. Almost had about 400+ recharge cycles before the battery started to wear out. Looking forward on your feedback!

manoei said:
Any updates regarding your experience with these batteries? I used to own this brand for my HTC Sensation and was very pleased with it. Almost had about 400+ recharge cycles before the battery started to wear out. Looking forward on your feedback!
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damn- not deliverable to my area thru Amazon

Am tempted by the 3000Mah battery by E-Cell....
http://www.ebay.co.uk/itm/GOLD-3000...ultDomain_3&hash=item3f1b24bf0b#ht_2324wt_962
Purchased a 2100mah previously to replace the 1450mah that was in my Sony Xperia Play.... Definately added a few more hours of play to it..... Hmmmm....

Any way of posrting one x + battery

As most of the config are same is there any possibility we can port one x + battery in to our one x by changing the case or by using the same case. That's the only one I need from one x +
Sent from my HTC One X using Tapatalk 2

Hi
forumhookersdotcom said:
As most of the config are same is there any possibility we can port one x + battery in to our one x by changing the case or by using the same case. That's the only one I need from one x +
Sent from my HTC One X using Tapatalk 2
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It depends. If the battery isn't the same size then no it isn't going to be possible as physically it will not fit.
Even if the same size, the charging circuit may not fully charge the battery so the extra capacity isn't realised easily in the current model.
Regards
Phil

PhilipL said:
Even if the same size, the charging circuit may not fully charge the battery so the extra capacity isn't realised easily in the current model.
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That's not how battery charging works. It would charge fine.

Hi
BenPope said:
That's not how battery charging works. It would charge fine.
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Click to collapse
Not if the maximum voltage for a full charge is different. Typically lithium ion charges to 4.1 to 4.2 volt depending on the battery and design, the lower full charge voltage will favour longevity over capacity, the higher voltage utilises the full capacity of the cell but stresses the cell more lowering it's life time.
If the HTC One X+ battery is designed to be pushed to a slightly higher voltage to achieve the higher capacity fully, and/or being allowed to drop to a lower voltage during it's duty to get the extra, then the charging circuitry in the HTC One X will not realise the full extra capacity, it will charge fine, but the extra capacity will not be seen.
If the max/min duty voltages are the same, then it will charge just fine to full capacity, assuming the data connections are identical between the cell and the phone that is. However in this case it is more likely the extra capacity is then achieved by a bigger battery, so it will not fit. The FCC information already shows a different placement arrangement for the antennas so the internals are arranged differently and what we are probably looking at is a slightly bigger battery.
Another issue if it fits and works is the charging will take longer. For safety the charging circuit in the phone has a safety timer calibrated to work with the original battery, if the charging takes longer than expected (as it would with the higher capacity battery) the charging is halted to avoid the potential for an explosion, so unless this timer is also changed, or is set automatically by data supplied from the inbuilt battery protection circuit, it might prove problematic charging the higher capacity battery, especially from flat to full, as the safety timer will terminate the charge before the battery is fully charged.
Regards
Phil

I strongly suspect that the charge voltage is the same and any timer is unlikely to kick in as it will have plenty of headroom.
The difference is most likely due to physical size or perhaps an improved charge density.

We can order one x+ battery and case if it charges well and works good right . Are you sure it won't works ?
Sent from my HTC One X using Tapatalk 2

BenPope said:
I strongly suspect that the charge voltage is the same and any timer is unlikely to kick in as it will have plenty of headroom.
The difference is most likely due to physical size or perhaps an improved charge density.
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I have doubts that htc will make the battery interchangeable as they would suspect that one x owners would attempt a battery swap.

Anyhow the battery will not be, at least theoretically, interchangeable, as you aren't supposed to open the housing.
So that wouldn't be a worry.
Phil, what you say regarding a timer is total nonsense.... If u keep your phone plugged in and play a game in the meantime, charging can take also the whole day, because you're using the battery in the meantime.. BUT it is charging!! Charging does not interrupt after a specified amount of time..
What the phone, and also any other phone has, is a circuit which is stopping the charge when battery is full. How does it know the battery is full? This circuit is not in the phone but in the battery
Regarding the charging voltages and so - again nonsense... The voltage of a battery is fixed. It does not vary at all or if it does it is a measuring error. Nor does the charging voltage. This is again fixed.
(of course nothing is perfect, they can vary, but with 1% or even less, must be a tolerable error.)
When charging a battery what may vary and it depends on the charger is the electrical current's intensity (measured in amperes).
Putting a battery with a higher capacity in the phone will have the following results:
1. Longer battery life
2. Slower charge
But if the battery has the same voltage (and i think it does) it will work, and it will charge fully!!
Most probably htc is using the same voltage on all their phones...
If this is true, the only thing that could stop us from changing the battery will be the form factor of it....
Sent from my HOX InsertCoin using xda app-developers app

Charging lithium ion batteries is two phase; firstly, constant current, where the voltage is variable, and then constant voltage, where the current is variable.

Thx mate well still... From experience with other phones where i changed my battery- i don't think the charging process will be an issue... Usually a manufacturer uses the same process of charging with all phones or at least similar models.... I swapped li-ion batteries with li-pol and had no issue at all
So if form factor will be the same, in my opinion it will work!
Sent from my HOX InsertCoin using xda app-developers app

Let me know if any one tried swapping
Sent from my HTC One X using Tapatalk 2

Another Gold 3500 battery review...slightly scientific

Wanting more battery life and having reading a few positive reviews about the Gold 3500, I got one from Amazon (UK). The numbers 3500 vs 2500 mah indicate I should get around 40% extra battery life compared to stock but having played with RC cars and helicopters running LiPo packs I know that pack ratings aren't everything.
Actual battery capacity depends on the discharge rate, the more juice you pull the less the effective battery capacity you get with a lot of energy wasted in heat due to internal battery resistance. Fact of life with batteries of all chemistry.
My original battery is about 6 months old now, charged daily from anywhere between 0-50% remaining. In day to day use the Gold does seem to last longer based on my 6 months experience with the original battery but how much better is it?
I charged the batteries in my phone and turned the phone off once it hit 100% but kept the charger on as it seemed to charge for a bit longer.
Using my RC battery charger, I used the discharge function setting the low voltage cut off to 3V (standard for lithium batteries) and set the discharge rate at a constant 300 mah. Using a constant discharge rate may not be realistic but it does allow for a fair comparison, keep in mind that our phones power usage jumps up and down depending on use.
Results
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6 month old stock battery rated at 2500 mah = 2364 mah (which is what I would expect from a battery with 180 cycles on it)
Brand new Gold 3500 rated at 3500 mah = 2524 mah (a bit disappointing but at least as good as a new stock battery)
Now the discharge rate can make a big difference to effective battery capacity, it might be that the 3500 mah rating on the Gold batteries was determined using a very low discharge rate or they discharged it to below 3V.....or its just a gold wrapper over a stock battery
Interesting to note that the stock Sammy battery is pretty true to its rated capacity, so the perceived increase in battery capacity I experienced with the Gold battery is probably just the difference between a 6 month old battery and a new one.
Oh well, at least I have a spare battery now and didn't pay a fortune for the Gold. The Gold does seem to last a bit longer than the 6 month old stock on so I am happy enough with it.
Notes:
Gold battery had been in use for 2 weeks to run it in
Only one discharge cycle was performed
Could be that I have a dud battery, you results may differ
In real day to day use the discharge properties of the Gold may result in a higher 'effective' capacity
Solar flares are the source of all coding errors
Fairies do live at the end of your garden :cyclops:

It's a shame i've read this post only two days after buying me one of those. Anyway, even if it won't last longer, i'd still have a spare battery right? So everything is not lost

nope, its a shame they rate it 3500mah if this is the case for all.
Mignon, maybe your can get a replacement from thrm and test again. Especially if you have a dud.
Do notice I notoce a significant increase in battery life after charging it past 100%. Probably placebo, I dont know.

Don't think I have a dud, in my experience lion batteries either work or don't. It's not a crap battery, it's just as good as stock but doesn't match the advertised 3500 mah rating.
And it's shiny gold so things aren't that bad
Sent from my GT-N7000 using xda premium

Well that sucks.....haha...i order a gold a week ago.....it should be here soon.....

I got 3500mah gold battery. I review it.
My rom is ultimate rom v5.1, and my stock battery was 11 months old.
Screen on time was always less than 4 hours.
Yesterday I got the gold battery, and I used it up to 1% without first charge, then I charged it 12 hours to initilize the battery.
So unpluged the charge, and tested it as the same usage. I always downclocked to 1000MHz, wifi on, no use 3g data, brightness is zero, bluetooth and gps is off. I downloaded 15 files and apps today, listened to music, did multi windows function, and almost used web browsing.
Now my battery is just 1%. Screen on time is over 5 and half hours. Obviously the battery was improved.
If official JB are released, the battery will be improved more.
But this is not made in Japan. This is made in China because Japanese is so strange on package.
Some of Chinese battery are so dangerous and may be fake, but this gold battery is good one.
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here are pics
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I'm satisfied with this.
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mingonn said:
Don't think I have a dud, in my experience lion batteries either work or don't. It's not a crap battery, it's just as good as stock but doesn't match the advertised 3500 mah rating.
And it's shiny gold so things aren't that bad
Sent from my GT-N7000 using xda premium
Click to expand...
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I dropped my stock and it works perfectly till 55% then it dies. Gonna throw it away soon. So some of the cells could be damaged. Its not either they work or dont m8.

@Mingnon thanks for your effortful tests.
@eeynjae, what are all apps spreading around those icons in your notification bar ?

I am pretty sure most mobile 3.7v phone batteries are single cell, only the mugen styled battery extender jobs that require a different back cover run two cells in parallel.
Remaining capacity is usually just a function of cell voltage so it's strange that it should just tank at 55%. Battery protection circuits generally prevent discharge past 3.0 volts so not sure what it's going on there.
Either way it sounds like you need a new battery, wouldn't risk recharging a damaged cell...
Sent from my GT-N7000 using xda premium

mingonn said:
I am pretty sure most mobile 3.7v phone batteries are single cell, only the mugen styled battery extender jobs that require a different back cover run two cells in parallel.
Remaining capacity is usually just a function of cell voltage so it's strange that it should just tank at 55%. Battery protection circuits generally prevent discharge past 3.0 volts so not sure what it's going on there.
Either way it sounds like you need a new battery, wouldn't risk recharging a damaged cell...
Sent from my GT-N7000 using xda premium
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yeah its strange. Stuff started to happen at 50, whrn restarting bat percentage dropped to 10-15%. Without restartingbit would go down normally in beginning. Now after using it some time and dropping it its 55%.
Its definitely it either works or doesnt.
Anyway I dont think it's single cell.

i have the same battery bought it a few months back i'am very satisfied....
it's not a 40% extra time even framework it designed to work with less voltage since after using it below 15% i notice always fake meter value, when you keep your phone asleep for half an hour you will notice an increase in percentage. not accurate but runs fine, its a spare and a great replacement i dont care if it's slightly powerful than stock at least its the same size for 4 extra hours.. i never needed to change case nor a cover of anything its great

Sorry for my off-topic question, but i see in this topic there are advised people recently i bought a noname car charger for my Note, (specs: output 5.5V DC, 800mAh) - is this charger good for the Note or it would damage it? (i read somewhere that the original car charger's output is 5V... this difference of 0.5V has any importance?) Thanks.

mingonn said:
Results
-----------
6 month old stock battery rated at 2500 mah = 2364 mah (which is what I would expect from a battery with 180 cycles on it)
Brand new Gold 3500 rated at 3500 mah = 2524 mah (a bit disappointing but at least as good as a new stock battery)
Click to expand...
Click to collapse
Thanks for your time and efforts - your results are similar to my amateurish measurements performed twice and reported on the other 3500 battery thread. Having no device to test the actual capacity, I just used the continuous video playback in plane mode with minimal backlight. The time to full discharge was almost identical in both cases.

zetlorf said:
Sorry for my off-topic question, but i see in this topic there are advised people recently i bought a noname car charger for my Note, (specs: output 5.5V DC, 800mAh) - is this charger good for the Note or it would damage it? (i read somewhere that the original car charger's output is 5V... this difference of 0.5V has any importance?) Thanks.
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Nobody?

zetlorf said:
Nobody?
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It won't damage your phone, but if you are going to use it as a gps while charging, it will probably keep dranig the battery, 800mah is not enough to charge it while screen is on and gps is running

baz77 said:
I dropped my stock and it works perfectly till 55% then it dies. Gonna throw it away soon. So some of the cells could be damaged. Its not either they work or dont m8.
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Some of the cells? Its a 3. 7v Li There is only one cell:silly:

i have been disapointed by this type of battery

hardtheory said:
i have been disapointed by this type of battery
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Why is that?
After i've received mine, i've never ran out of battery during my day. Definitively improved the usage of my phone.