Develop Bugs

Any experience with qcell batteries?

As the title says: anybody tried qcell batteries before? I found them earlier on Amazon.
http://www.amazon.com/QCell-Univers...id=1342222580&sr=8-2&keywords=Qcell+galaxy+s3
They appear to have good reviews and the price is right. They also have nfc antennas in the batteries, not that I see myself using nfc for anything.

Definitely interested with this too. I ordered these today.
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Please report back how they are after a week of use. Thanks
Sent from my SCH-I535 using Tapatalk 2

DINLONG said:
As the title says: anybody tried qcell batteries before? I found them earlier on Amazon.
http://www.amazon.com/QCell-Univers...id=1342222580&sr=8-2&keywords=Qcell+galaxy+s3
They appear to have good reviews and the price is right. They also have nfc antennas in the batteries, not that I see myself using nfc for anything.
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i place my order.....guess it will arrive at my place end of next week. will share more when i get it.

From all the reviews I've read, they're supposed to be same as OEM at half the price.

The reviews from amazon seem a bit fishy, all raving 5 star reviews and all the reviewers are brand new accounts with just one review. I'll have them by tomorrow and will post my results.
Any special app or way I should test them with? Or just a few full charge cycles to see?
Sent from my SAMSUNG-SGH-I747 using xda premium

Alex2x3 said:
The reviews from amazon seem a bit fishy, all raving 5 star reviews and all the reviewers are brand new accounts with just one review. I'll have them by tomorrow and will post my results.
Any special app or way I should test them with? Or just a few full charge cycles to see?
Sent from my SAMSUNG-SGH-I747 using xda premium
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I am almost 100% certain that those reviews are fraudulent. Look at their other batteries. The ones with only 5-7 reviews are pretty much the same. 5 stars, only review... it's really not hard to game Amazon like this. Verified purchase doesn't mean much either when you can give money to your friends/family/employees/strangers to buy them and give them 5 stars.
Then the rest are 1 star reviews from people who bought them and realized they are crap.

mb27 said:
I am almost 100% certain that those reviews are fraudulent. Look at their other batteries. The ones with only 5-7 reviews are pretty much the same. 5 stars, only review... it's really not hard to game Amazon like this. Verified purchase doesn't mean much either when you can give money to your friends/family/employees/strangers to buy them and give them 5 stars.
Then the rest are 1 star reviews from people who bought them and realized they are crap.
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I ordered two and they work fine. NFC works as well and tested from my phone to my wife's S3. When I ordered they didn't have the two battery and separate charger available so was only able to get the batteries at $8.99 each shipped. Definitely stay away from Anker and Hyperion since it is confirmed they do not support NFC. The 2300mah QCell's are as good if not better than the Samsung original in terms of battery life.

Just received my Qcell batteries and charger a few minutes ago. Have the first battery charging now, will update when I have used them a time or two. It is not hard for me to believe the batteries would have similar characteristics to the OEM, it isn't rocket science... but time will tell.
---------- Post added at 12:07 PM ---------- Previous post was at 11:24 AM ----------
OK, the Qcell battery is charged, I put it in my S3, and it fits like normal, powers up as normal, I can confirm NFC works the same as the OEM battery for me. I will comment on battery life, when I have used it a bit. Is there a good battery diagnostic app that mught be useful?

I have had the qcell batteries and charger for about a week now and I am definitely happy. After charging it fully and completely discharging it three times, I would have to say that it lasts noticiably longer than the standard 2100ml battery. Plus they are dirt cheal
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I have this as well. Got the two batteries and charger. The batteries are holding up nicely but the charger only charges them up to 90%. Anybody else see that?
Sent from my SGH-T999 using xda premium

eI keep hearing the aftermarket chargers don't fully charge any of these batteries. Has anyone found a charger that will fully charge?

Ordered mine today should be here Tuesday. I will report my findings
Sent from my SCH-I535 using Tapatalk 2

Yeah I bought some ebay cheapies, 2 batteries and a charger for $10, and the charger only goes to 88%. Weird. The batteries give roughly 75% of originals. Not bad for the price.

jlczl said:
I have this as well. Got the two batteries and charger. The batteries are holding up nicely but the charger only charges them up to 90%. Anybody else see that?
Sent from my SGH-T999 using xda premium
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DINLONG said:
eI keep hearing the aftermarket chargers don't fully charge any of these batteries. Has anyone found a charger that will fully charge?
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kronium said:
Yeah I bought some ebay cheapies, 2 batteries and a charger for $10, and the charger only goes to 88%. Weird. The batteries give roughly 75% of originals. Not bad for the price.
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Mine charges to 100% but it takes a loooong time. About 8 hours or so, starting from 15%. It seems to slow down for the last 10% too. This should be better for the battery, than a fast charger. The charger LED is purple while charging, and will turn blue when finished.
Try leaving it on the charger and see what happens. I thought the same as you guys the first day, but finally figured it out after some testing, using a volt meter, and then finally just leaving it on the charger for what felt like forever.
Only had the batteries a few days but battery life seems comparable to OEM.

Be careful with the chargers. I had a similar one with my evo 3d. After about a few months of use the charger contacts shorted and the charger basically fried up. Basically not a good idea to put a battery in it while it's plugged into the wall

jlczl said:
I have this as well. Got the two batteries and charger. The batteries are holding up nicely but the charger only charges them up to 90%. Anybody else see that?
Sent from my SGH-T999 using xda premium
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I haven't had that issue. My charges 100%
Sent from my SGH-T999 using Tapatalk 2

firetruck41 said:
Mine charges to 100% but it takes a loooong time. About 8 hours or so, starting from 15%. It seems to slow down for the last 10% too. This should be better for the battery, than a fast charger. The charger LED is purple while charging, and will turn blue when finished.
Try leaving it on the charger and see what happens. I thought the same as you guys the first day, but finally figured it out after some testing, using a volt meter, and then finally just leaving it on the charger for what felt like forever.
Only had the batteries a few days but battery life seems comparable to OEM.
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Even after 24 hours it only charges the battery to 90%.
Sent from my SGH-T999 using xda premium

jlczl said:
Even after 24 hours it only charges the battery to 90%.
Sent from my SGH-T999 using xda premium
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I would contact the seller. Mine is slow but like I said, about 8-10 hours for a charge. Does the light ever change on the charger?

firetruck41 said:
I would contact the seller. Mine is slow but like I said, about 8-10 hours for a charge. Does the light ever change on the charger?
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I might do that.
Yes. It turns blue.
Sent from my SGH-T999 using xda premium

Fake Samsung charger

I got a Samsung micro USB charger and there is blurry text.
Anyone know if the charger is fake of it is Manufacturing defect?

I think it is a manufactoring defect.
And what do you care about the charger?
If it charges your phone it's good, isn't it?
Geert
Verstuurd van mijn GT-I9300 met Tapatalk

As long as the specs are right, doesn't really matter, does it - unless you want to file a dispute for possibly getting ripped off. I bought a charger for $1.50 on eBay and it works just fine.
Sent from my SGH-T999 using xda app-developers app

I think it's a fake. They all over the place in Indonesia market, selling for $3-$5. Some look like the realy ones with hologram and same packaging as Samsung ones.
The problem with fake charger is that they dont last long, I think their components are of very low quality.

Looks fake just by the LU sticker
Sent from my Galaxy S3 using neighbors wifi

I still wouldn't trust the charger very possible that it could over charge your phone
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ironman1000 said:
I still wouldn't trust the charger very possible that it could over charge your phone
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ummmm not likely the phone has control over its charging... ever notice how it takes a second for your phone to start charging after you plug it in. thats because the phone actually makes the effort to connect the power input to your battery as well as disconecting the charger from the battery.. also having a higher output charger wont make you phone light on fire as the charger may have the ability to supply said amount of power but the phone will only "draw" a maximum amount as most are actually designed to do these days.... meaning i can throw a phone that came with a 700 mAh/ .7 Ah charger on a 2100 mAh/ 2.1 Ah charger and actually not have it draw more then lets say 1.5 Ah because that is the maximum it was desinged to do so. also leaving your phone on the charger after its full wont hurt the battery ... unless we are talking about several days straight. after a battery is full most charging systems enter what is known as a trickle or float speed. basically just enough to suplly power to phone as if the battery werent in it. say going from 700 mAh down to 200 - 400 depending on if your phone is actually deeep sleeping or slightly to heavily active. mid you if your screen is on during that time that number may still be higher.
now im not saying that this is always the case some really cheap and poorly built pos may cause a fire (saying as both phone and chargers alike) ... cause they do. but the reasons why they go up is nearly always due to poor quality and something fails instead of i plugged a high power charger into my phone and dantes inferno then visited on my bedside table.

i-Blason PowerGlider Battery Case in Stock

http://www.amazon.com/i-Blason-Powe...70579413&sr=8-2&keywords=htc+one+battery+case
I'm going to bite the bullet. Anyone else with me? I'm curious to see how long it takes to charge since it only outputs 0.5A of current.

Arcadia310 said:
http://www.amazon.com/i-Blason-Powe...70579413&sr=8-2&keywords=htc+one+battery+case
I'm going to bite the bullet. Anyone else with me? I'm curious to see how long it takes to charge since it only outputs 0.5A of current.
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I ordered one a couple of hours ago. Got the phone today and im excited to see a battery case already available. Over in the Nexus 4 forums were still waiting.

silentsnow31802 said:
I ordered one a couple of hours ago. Got the phone today and im excited to see a battery case already available. Over in the Nexus 4 forums were still waiting.
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The Mophie is also out for the HTC One, but I don't like the looks of it.

Arcadia310 said:
The Mophie is also out for the HTC One, but I don't like the looks of it.
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And quite a bit more expensive. The only real difference I see is the charge rate. IIRC I read somewhere the Mophie covered the power button and I use the IR blaster. Either way ill give this one a shot, if I dont like it ill check out the Mophie.

The output of 500mA convince me not to be a guinea pig for this case.
I'm convinced that's just not enough power to charge up the phone while in use. Also that rate of output I'm sure it will take hours to change a phone.
Sent from my HTC One using xda premium

Alternative case 3800mah
http://forum.xda-developers.com/showthread.php?t=2314388

shook187 said:
The output of 500mA convince me not to be a guinea pig for this case.
I'm convinced that's just not enough power to charge up the phone while in use. Also that rate of output I'm sure it will take hours to change a phone.
Sent from my HTC One using xda premium
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I dont need it to charge. I just need it to sustain power. If both the phone and case are full just turn the case on so it discharges first. Its perfect for me, itll keep my phone topped up while im at work and not using it much.

silentsnow31802 said:
I dont need it to charge. I just need it to sustain power. If both the phone and case are full just turn the case on so it discharges first. Its perfect for me, itll keep my phone topped up while im at work and not using it much.
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The phone should stay charged if you don't use it much even without the case. I'm not sure what's the purpose of having a case if you're not using the phone, it will stay charge while not in use.
I personally need the case to be able to charge my phone up or hold charge while it's propped up streaming a baseball game with the AtBat app.
But I know for a fact 500mA just won't be enough power for the phone to hold a charge while in use. You will actually get power drain while in use.
Either way guys let me know how it goes I'll keep an eye on this case.
Sent from my HTC One using xda premium

shook187 said:
You will actually get power drain while in use. /snip
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No offense, but what's your problem with this? Batteries drain when in use, period. If you're using a battery case, then the batteries are still draining. If I wanted to actually charge my phone, I'd use an external backup battery or AC-- I'm ordering this case to extend runtime by slowing consumption rate.
It just seems like you'd be better suited with an external battery.

Rirere said:
No offense, but what's your problem with this? Batteries drain when in use, period. If you're using a battery case, then the batteries are still draining. If I wanted to actually charge my phone, I'd use an external backup battery or AC-- I'm ordering this case to extend runtime by slowing consumption rate.
It just seems like you'd be better suited with an external battery.
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I don't think you used the mophie juice pack before because it actually charges up the phone while you using it. That's a feature I actually need because I will actually watch a baseball game or two while at work and don't want to be tied down to a power cord.
With the Mophie case I get 2 full charges and what ever time it took the case to fully charge the phone. Needless to say I'm cordless for a whole day with heavy heavy usage and constant screen on time.
I want this case for the simple fact it has a kickstand but besides that what's the point in having this case if all it does is charge the phone while not in use. And it does a poor job at that too because it takes up to six hours to get the battery fully charged if you don't use the phone.
Does this case actually extend usage by slowing consumption rate? By how much is the question. I don't think much with the .500mA out put.
Sent from my HTC One using xda premium

shook187 said:
I don't think you used the mophie juice pack before because it actually charges up the phone while you using it. That's a feature I actually need because I will actually watch a baseball game or two while at work and don't want to be tied down to a power cord.
With the Mophie case I get 2 full charges and what ever time it took the case to fully charge the phone. Needless to say I'm cordless for a whole day with heavy heavy usage and constant screen on time.
I want this case for the simple fact it has a kickstand but besides that what's the point in having this case if all it does is charge the phone while not in use. And it does a poor job at that too because it takes up to six hours to get the battery fully charged if you don't use the phone.
Does this case actually extend usage by slowing consumption rate? By how much is the question. I don't think much with the .500mA out put.
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Different users, different use-cases. "Not in use" means different things to different people, and my phone consumption is tweaked to be pretty low. As is I usually get through the day with about 30-50% left at the end; while I'm walking around at work, it's just playing music or I'm using a tablet to watch video instead (since I don't want to use my work machine for that...you can guess why ). Since my phone cycles down a lot of the time, 500mA is enough to trickle charge when I need it, and slow usage (by the USB charge rate, which is hardly shabby) when I am.
Since I don't need to use my battery aggressively, there is certainly a point for my use-case. And I really can never see a situation where I would want to charge my phone completely. If I really had to, I have external batteries for tha.t

[Q] Chargine speed?

Just got my G3 last night.
Loving it so far, but i noticed that the charging speed is very slow..
Also, the charger and cable that came with the phone gives me "weak power" notification even when I plug it into the wall.
So I have to use my old charger and cable...
any thoughts ?

Coming from a Note 3, this does feel slower.
Nexus ONE

I'm still using my galaxy s4 charger since its a larger cord. Charges about the same speed as my g2.

Yep coming from the note 3 I notice a difference too. It's gotta be the fact the note had usb 3.0
Sent from my LG-D851 using XDA Free mobile app

Yes, coming from the Note 3, the G3 is slow as hell. Actually, very disappointed on it but it is what it is.

I haven't even used the one that came with the phone. Use the blackberry blade chargers, they'll charge at about 1% a minute or so. Best 5 bucks I ever spent.
Sent from my LG-D851 using XDA Free mobile app

The charger that comes with the phone is 1.8 amps, the Note 3 comes with a 2 amp charger. Not sure how much current the G3 can pull vs the Note 3, but you could try using a Note 3 charger and see if it's any faster.
I had an old charger by my nightstand and when I plugged it in at around 20% it said it would take it 6 hours to charge haha. The included charger quoted 2 hours.
It's possible that your cable (or the charger) is damaged OP

I plugged my 2 day old G3 in yesterday at 18% and it calculated charge to 100% to only take 1hr46min. Your charger must be phuked if it is showing slow charging. All chargers I have that are over 1.5mAh charge at the faster rate.

OhioDroid80 said:
I plugged my 2 day old G3 in yesterday at 18% and it calculated charge to 100% to only take 1hr46min. Your charger must be phuked if it is showing slow charging. All chargers I have that are over 1.5mAh charge at the faster rate.
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Mine charges no slower than any other phone I've owned. I don't do Samsung, so I can't say anything about them. Charges every bit as fast as my wife's M8.

T-Fanatic said:
I haven't even used the one that came with the phone. Use the blackberry blade chargers, they'll charge at about 1% a minute or so. Best 5 bucks I ever spent.
Sent from my LG-D851 using XDA Free mobile app
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This ^^^. $5 on eBay for TWO of them. They're 6 feet long, and charge at 1.8A - fast as hell on my N5. I'll see how it is on the G3 when I get it. But they're honestly so good I bought 6 of them total. For $15, and how good they are, why not?

Did u try them? Do u have link from ebay?

Using the supplied charger for everyday charging?

So the stock charger that comes with the phone is a quick charger. Would using this charger every night to charge my phone kill the overall lifespan of the battery? Is it bad for the battery?

I don't think there's enough data to reliably say whether it's significantly decreasing the life, but fast charging does produce more heat which will theoretically degrade your phone quicker. I personally use a normal wall plug overnight and keep the quick charger by my desk in case I need a top-up during the day.
Here's some light reading:
http://pocketnow.com/2014/12/25/speed-chargers
https://www.reddit.com/r/nexus5x/comments/42xq9p/fast_charging_bad_for_battery_in_long_run/czegbzm

noahjk said:
I don't think there's enough data to reliably say whether it's significantly decreasing the life, but fast charging does produce more heat which will theoretically degrade your phone quicker. I personally use a normal wall plug overnight and keep the quick charger by my desk in case I need a top-up during the day.
Here's some light reading:
http://pocketnow.com/2014/12/25/speed-chargers
https://www.reddit.com/r/nexus5x/comments/42xq9p/fast_charging_bad_for_battery_in_long_run/czegbzm
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Quadrider10 said:
So the stock charger that comes with the phone is a quick charger. Would using this charger every night to charge my phone kill the overall lifespan of the battery? Is it bad for the battery?
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QC 3.0 significantly improves charging efficiency and heat reduction. Please don't confuse fast chargers with quick charge technology.
http://www.androidauthority.com/quick-charge-3-0-explained-643053/

I've read all that and still can't really decide if it's OK to use everytime

Quadrider10 said:
I've read all that and still can't really decide if it's OK to use everytime
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Of course it's fine to use it everyday, manufacturers wouldn't ship a charger with a phone that you shouldn't use.

geoff5093 said:
Of course it's fine to use it everyday, manufacturers wouldn't ship a charger with a phone that you shouldn't use.
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Pardon my cynicism but manufacturers get paid to sell phones. Slow degradation due to heat might have you buying a new one 20% sooner than if you slow charged. Not saying this is the case, but you have to look at the flip side of your argument too.

demi9od said:
Pardon my cynicism but manufacturers get paid to sell phones. Slow degradation due to heat might have you buying a new one 20% sooner than if you slow charged. Not saying this is the case, but you have to look at the flip side of your argument too.
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It would be a fine balance between that and having to deal with warranty issues from faulty chargers.
Sent from my SM-G935V using Tapatalk

My moto x pure battery is still in good condition after using qc2.0 for a year. I'd say it's all gonna be fine.

I plan to have this phone for a long time. 3-4 years. That's why I've been a little worried about using it.

Try testing it for yourself.
I haven't used any charger except the QC 3 that came with the phone yet, but I have noticed it gets pretty warm.
Plenty apps available to monitor your battery temp. (Link in my sig )
Heat is definitely bad for batteries.
As far as charge rate it's hard to say. Fast charging a car or marine battery is significantly degrading it. Not sure about the batteries used in modern tech. I would assume they can handle fast charging well given the only charger included is a rapid charger.

Use the QC3 charger for everyday charging. It will be fine. Discharging the battery is going to hurt more.
If you want to maximize it:
discharge no lower than around 40-50% or so.
charge it higher than 90%.
Have fun using your device.

demi9od said:
Pardon my cynicism but manufacturers get paid to sell phones. Slow degradation due to heat might have you buying a new one 20% sooner than if you slow charged. Not saying this is the case, but you have to look at the flip side of your argument too.
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Manufacturers wouldn't have customers buying another phone of theirs if their phones don't last long.
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