Battery damaged by Chinese charger - General Questions and Answers

I recently took delivery of a Sony Xperia ZR after research told me of its amazing battery life. I used the phone for one day and found after 12 hours of heavy usage I still had 50% charge which I found to be quite impressive. Overnight I put the phone on a 4 USB outlet charger providing 2.1A that I bought online for cheap. The next day I found battery life to be very poor. I tested the charger with a multimeter and it was running 5.1V which is apparently within USB spec. Could the charger have damaged my battery? Should I be charging at a lower current?

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[Q] portable charger or extended battery?

i am going on a travel abroad... will be using camera and camcorder a lot and wifi.... what do you recommend? a portable charger or extended battery? i want a cheap solution..preferably available from ebay
budget : not more than $30-34
extended battery
Battery will do better
I've just come back from holiday and had a portable charger. It was useful, but I often found that the battery would hardly last the day and there wouldnt be any place to charge it (you don't really want to be back in your hotel when you could be out sight seeing). Rather than trying to find a socket, I'd just get an extended battery. You can just swap it over and continue your fun rather than rooting around for power.
if i buy an extended battery i need to also buy a seperate battery charger so that i can charge the 2 batteries at the same time
it depnds how you'll spend your time.
but you can swap the battaries on the phone to charge them.
Normally charging the battary will last 1 hour.
again it depnds about the places you'll visit.
How many mAh are you planning on using per day? An extended battery will give you 3000mAh compared to the 1400mAh on the original battery. A decent portable charger will give you 5000mAh.
The only down side of using the portable charger is waiting for the battery to charge, most will do that at 500mAh so 3 hours to totally charge the normal desire battery from flat. However while the extended life battery has died the charger will still have about 1.5 charges left in it.
1 thing to point out unless you get a solar charger some portable charges will only charge from USB so make sure you have a way to charge that when out and about
I would get the potable charger (and remember to put it on charge when you have a spare min throughout the day) as when you replace your phone you cant really do much with the extended battery with your new phone, least the portable charger can be used over and over again.
i finally opted for a spare battery solution. I bought an oem battery for desire/nexus one. and i will buy a battery charger so that i can charge both batteries when i go to sleep so that they are both ready the next day
Get a portable charger instead. Taking the battery in and out can wear off the back lid easily.
Get a big battery, it's better than changing between batteries. As well you have to carry the portable charger when you travel. And you have to charge it, too.
So the extended battery should last one day (except you use GPS all time) and you can charge phone when you sleep.
I use a proporta turbocharger and I found it more usefull 'cause I can spare it with my friends with Desire HD, iPhone 4 and LG Optimus 7: with 2 of this we managed to stay all charged all day long and recharged both of them in hotel during the night.
For a trip is a Extended 3000mAh Li-Ion Battery a good solution. It comes with battery cover. Price about 25 $
For the daily use, its too big for me.
yeahman45 said:
i am going on a travel abroad... will be using camera and camcorder a lot and wifi.... what do you recommend? a portable charger or extended battery? i want a cheap solution..preferably available from ebay
budget : not more than $30-34
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Click to collapse
Extended battery for sure.
can aosp/sense kernel recognize bigger extended battery? afaik, there is a problem when charging bigger extended battery.
in my personal opinion, the standard battery (htc original) is much better than other and my desire remain slim. and if i travel, i prefer to use big portable charger to charge the handset when is not used. and charge them both when i sleep.
Most batteries with lots of ampere just have them as a tag... Check this site for information:
http://batteryboss.org/
I suggest you buy another original battery as from time any battery will lose capacity and this way you are flexible.
To charge you can buy a cable designed for charging the smartphone from your car e.g. HTC CC-C200 or the car dock from my signature.
Why you should use this: The data line is used for power and not for data and therefor the charger is recognized as a wall charger, not as usb cable. Thus recharge is lots faster (with 1000 mAh) than with any 3rd party charger/cable with 500 mAh although the charger itself could give you 1000 mAh (USB specifications!).
I'd go with an portable charger because you don't acutally need to restart your phone when plugin it in.
drabbster said:
I'd go with an portable charger because you don't acutally need to restart your phone when plugin it in.
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If one is in a sunny place would it not be better to use Solar Charger?
solar charging is super slow
bliblablub said:
Most batteries with lots of ampere just have them as a tag... Check this site for information:
http://batteryboss.org/
I suggest you buy another original battery as from time any battery will lose capacity and this way you are flexible.
To charge you can buy a cable designed for charging the smartphone from your car e.g. HTC CC-C200 or the car dock from my signature.
Why you should use this: The data line is used for power and not for data and therefor the charger is recognized as a wall charger, not as usb cable. Thus recharge is lots faster (with 1000 mAh) than with any 3rd party charger/cable with 500 mAh although the charger itself could give you 1000 mAh (USB specifications!).
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Click to collapse
Thank you very much for the info.
I use a car charger (not HTC) which gives 1000 mAh and even with the original cable that came with desire, charging is slow. If I get this right, it is fault of the cable, right?
xristosdino said:
Thank you very much for the info.
I use a car charger (not HTC) which gives 1000 mAh and even with the original cable that came with desire, charging is slow. If I get this right, it is fault of the cable, right?
Click to expand...
Click to collapse
I suppose, best is you try it yourself - maybe a mate got one. As you may know USB allows only 500 mAh, using that secial cables that don't comply with USB (as they only charge) the producer can avoid this restriction.

[BATTERY] Cradle Chargers // Voltages, mAh

I'm interested in buying an external battery charger, or a cradle charger, so I can have two batteries going—one always charging outside of the phone—and thus never having to plug my phone in to charge. After a brief eBay search, all of the cheapest ones appear to be the same: you can find the model I'm referring to here.
My concern, however, is with the specifications listed, which read:
Input: AC 100-240V~50/60Hz 0.15A
Output: DC 4.2V~350mA~±50mA
USB: 5.2Vd.c.800mA
The output appears to be 300-400mA, which is slightly lower than a stock charger. As far as I know, this tells me how fast it will charge the battery. Since it will be plugged into the battery charger when I swap batteries (for the full discharge of the other battery), I don't care if it charges slower. However, the voltage appears to be quite low at 4.2V—and I'm entirely unsure how this will affect things. Will it still charge? Can it do damage to the battery? Should I not purchase this unit? What exactly does a lower/higher voltage mean?
Anyone?
Does it work? Is it safe? Does the lower voltage matter?
I've been using this same battery charger for over a year now. It charges my stock and extended battery (3500mAh) without any problem. Yes it does take longer compared to the normal charger to charge your battery because of the low mA but I don't think it has had any affect on my batteries. So the only downside is it takes comparatively longer to charge.
mo_danish said:
I've been using this same battery charger for over a year now. It charges my stock and extended battery (3500mAh) without any problem. Yes it does take longer compared to the normal charger to charge your battery because of the low mA but I don't think it has had any affect on my batteries. So the only downside is it takes comparatively longer to charge.
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Great! That's what I wanted to know. Thanks!
I have this charger as well. I can confirm that I have have not had any problems with the charger sense I got it. I ordered mine from Amazon here:
http://www.amazon.com/2600mAh-Batte...3352199&sr=8-4&keywords=Galaxy+note+batteries

Charger problem?

I bought a HTC Sensation from a guy and he didn't give me the genuine charger. The phone charged very slowly(6 from 1% to 100%). Since than I have tried many chargers(not genuine) and with nearly the same result. I than installed battery monitor widget. I see that while the phone is idle with the screen off it charges maximum 350mA. If i play 3D games in the meanwhile my battery goes down.
My question is how much mA does your battery charge when idle? How long does it take to fully charge? Is there any charger that I can buy from ebay or amazon that you have tried?
Sorry for the long question.Thx in advance
elvisypi said:
I bought a HTC Sensation from a guy and he didn't give me the genuine charger. The phone charged very slowly(6 from 1% to 100%). Since than I have tried many chargers(not genuine) and with nearly the same result. I than installed battery monitor widget. I see that while the phone is idle with the screen off it charges maximum 350mA. If i play 3D games in the meanwhile my battery goes down.
My question is how much mA does your battery charge when idle? How long does it take to fully charge? Is there any charger that I can buy from ebay or amazon that you have tried?
Sorry for the long question.Thx in advance
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Click to collapse
350mAh is very low for a maximum. How much mAh a charger uses to charge the battery depends on the battery level itself. If I'm down to say, 20%, my charger will charge at a rate of around 900-980 mAh. As the battery gets closer to full, say 90%, charging will taper off, and I might see about 200mAh.
Any charger rated at 5v - 1000mA (1A) will be what your after. I got an Australian certified charger off eBay for $10 and it does a great job.
My phone from say, 20%, on average will take around 1.5-2hrs to charge to 100%
Here's one very similar to what I bought. I had to buy one because my phone was purchased from Singapore, so obviously it didn't have the right adapter for Australia.
URL: http://pages.ebay.com/link/?nav=item.view&id=400208891755
Sent from my CM9 Stable Sensation using XDA Premium
I bought that anker battery that everyone keeps talking about and I have to say it works great although my phone takes a little longer to charge now (I'd say between 2.5 - 3 hours for a full charge). I'm currently tackling a new issue though, since I installed stable CM9 (a week or so ago) the battery will last most of the day but not the whole day where as CM7 would make the battery last a whole 24 hours. So around 30% less time with new rom!
I used to work in a phone shop and found that most USB micro chargers will be ok (from HTC, samsung and blackberry phones) and at home I either use the official HTC charger or a blackberry one.

Battery Care P3110...

Hello Guys!
I got today a new P3110 and I discacharged it to 2% and I plugged it now to load.
I have seen the charger pushes 2A @ 5V , this is pretty much for a battery of 4Ah, I know from my batteries ( AA AAA and others) that the charging current should be max. 1/3 of the capacity of battery.
So my question is: IS it better to charge it with the Samsung Galaxy S2 charger which provides only 0,[email protected],1V ?
It would last app. 6h to charge it till its full ( can be done over night, hopefully the charger wont melt)....
What do you think about that? Woul it harm to battery(li poly) to do it with small current?
cheers
If the charger seems much then tell me why Samsung made it.
Luigi2012SM64DS said:
If the charger seems much then tell me why Samsung made it.
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to destroy the battery faster, through much more currency than actually needed, so you have to buy a new one....
sh0ne said:
to destroy the battery faster, through much more currency than actually needed, so you have to buy a new one....
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Click to collapse
You have got to be kidding me. ITS SO THE TAB CHARGES FASTER. IT WON'T KILL THE BATTERY!!!!
Its because the tab has a much bigger battery 4000mah vs 16xxmah.
It charges it faster
MrAndroid12 said:
Its because the tab has a much bigger battery 4000mah vs 16xxmah.
It charges it faster
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Of couse it charges faster, but for long therm it will kill the battery faster. Its usual, like every battery. Every fast charger is not good for battery, I just wanted to know if somebody have a expieriance...
sh0ne said:
Of couse it charges faster, but for long therm it will kill the battery faster. Its usual, like every battery. Every fast charger is not good for battery, I just wanted to know if somebody have a expieriance...
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Click to collapse
Battery life span is a matter of charge cycles 0%-100%-0%. That is 1 cycle and surely batteries don't discharge to 0% not charge fully to 100%
-AFAIK- Even with lithium, Its the heat build up when "fast" charging that shortens any battery life - (same with fast discharging- I would never use those apps that do so) , so I agree with shOne. I have the same model & have noticed the battery does get quite hot when mains charging,( though have never thought to check charging AH).
I would imagine that the only damage you would do with using phone charger would be to the charger, by sucking out more than it can handle, not the battery ! -
-- But why not charge it via a pc usb port - this take a lot longer (so presume much lower AH) than the mains plug in charger - Most usb pc ports are nowadays - permanently live, even when pc off - same with the usb on a modern sky/virgin box. My battery does not get hot, charging this way. I dont know what the charge rate is charging this way ,because both the inbuilt notification & my battery app say "discharging" - (although actually charging)
(I agree that Samsung have provided a quick mains charger, and wouldnt be averse to selling replacement batteries earlier than would otherwise be neccessary, !! (I wouldnt use cheap replacement batteries in any I.T. stuff - I "blew up " a laptop once as a result!!)
I believe that the 2 amp charge is reasonable with the out put of most lithium batteries for this type of device. Since it is a lithium it will not be overcharging or over heating due to sensing, it would be a serious fire hazard... fyi I use a2 amp charger from Wal-Mart and I do not notice my device really heating up...
Sent from my GT-P3110 using xda app-developers app
Buff52 said:
-AFAIK- Even with lithium, Its the heat build up when "fast" charging that shortens any battery life - (same with fast discharging- I would never use those apps that do so) , so I agree with shOne. I have the same model & have noticed the battery does get quite hot when mains charging,( though have never thought to check charging AH).
I would imagine that the only damage you would do with using phone charger would be to the charger, by sucking out more than it can handle, not the battery ! -
-- But why not charge it via a pc usb port - this take a lot longer (so presume much lower AH) than the mains plug in charger - Most usb pc ports are nowadays - permanently live, even when pc off - same with the usb on a modern sky/virgin box. My battery does not get hot, charging this way. I dont know what the charge rate is charging this way ,because both the inbuilt notification & my battery app say "discharging" - (although actually charging)
(I agree that Samsung have provided a quick mains charger, and wouldnt be averse to selling replacement batteries earlier than would otherwise be neccessary, !! (I wouldnt use cheap replacement batteries in any I.T. stuff - I "blew up " a laptop once as a result!!)
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Click to collapse
Agreed. The worst I got was a cheap replacement off a street without a packaging for a dollar. When I plugged it in for a few minutes the battery turned extremely hit and the battery expanded as if it was a puffer fish that took an electric shock
"Agreed. The worst I got was a cheap replacement off a street without a packaging for a dollar. When I plugged it in for a few minutes the battery turned extremely hit and the battery expanded as if it was a puffer fish that took an electric shock"
--------
LOL.........mine was a supposed "genuine" DELL replacement battery I got on EB from HK. On the first charge (in the bedroom) heard a strange hissing then a loud "pop". Some of the underside casing was actually melted and there was battery gunge all over the internals!
Buff52 said:
"Agreed. The worst I got was a cheap replacement off a street without a packaging for a dollar. When I plugged it in for a few minutes the battery turned extremely hit and the battery expanded as if it was a puffer fish that took an electric shock"
--------
LOL.........mine was a supposed "genuine" DELL replacement battery I got on EB from HK. On the first charge (in the bedroom) heard a strange hissing then a loud "pop". Some of the underside casing was actually melted and there was battery gunge all over the internals!
Click to expand...
Click to collapse
A lot of things I bought from Hong Kong off Ebay actually came from mainland China pfff.....
It's those low quality defects they send you. Mass market goods in china doesn't require quality passes unlike Hong Kong where it's illegal once they get pass customs.
sh0ne said:
Hello Guys!
I got today a new P3110 and I discacharged it to 2% and I plugged it now to load.
I have seen the charger pushes 2A @ 5V , this is pretty much for a battery of 4Ah, I know from my batteries ( AA AAA and others) that the charging current should be max. 1/3 of the capacity of battery.
So my question is: IS it better to charge it with the Samsung Galaxy S2 charger which provides only 0,[email protected],1V ?
It would last app. 6h to charge it till its full ( can be done over night, hopefully the charger wont melt)....
What do you think about that? Woul it harm to battery(li poly) to do it with small current?
cheers
Click to expand...
Click to collapse
OK, electronics 101, chargers DO NOT PUSH power to a a battery, 2 AMPS is the chargers MAXIMUM OUTPUT, the device plugged to the charger PULLS what it wants (up to a maximum of 2A of current) so it can charge in a reasonable amount of time, you may be able to charge your tablet with a lower output charger but all it would do is take longer to charge (if the charger even had the power output greater then the static draw of the device), which is why most tablets simply CANNOT be charged by the USB 2.0 port on a computer or other small .5 A output chargers. You may very well charge while generating less heat, because of the slower charge cycle using the .7A S2 charger, but at the same time if you try to use the tablet while it's charging on the smaller charger it may very well drop in battery percentage as the smaller charger may not be enough to maintain the current requirements to charge the battery and run the device.
So in short, would charging with the smaller charger harm the battery, NO, but if it is enough to actually charge the device it will take atleast DOUBLE the amount of time to recharge as it would with the regular 2A charger.

Stock charger for extended battery???

Hello, I recently got my 6500mAh extended battery for my N7100 and I found that charging was pretty slow with the charger that comes with it (about eight hours for a full charge) compared with the stock charger that can charge the stock battery within one hour and half. Therefore, after reading the spec of the charger, I discovered that the slow charge was come from the fact that the output amperage of the charger was 800mA (800mAh). Therefore, by some calculation, 6500mAh/800mAh which was equal to eight hours. So, I then looked at the spec of the stock charger and I noticed that the output amperage is a bit higher, 2A (2000mAh). By the same calculation, I can predict that with the stock charger, I only need about three hours to completely charge my extended battery. Does anyone attempted to use a stock charger to charge an extended battery?

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