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my battery life solution

Well my battery life is pretty good, I have the 2750mah and I'm running lightning rom 1.5 with the stock kernel and I get a solid 2 days, but just in case I ever decide to go back to the stock battery I made this nifty little thing. It's an altoids case with a portable charger and adapters inside, and the parts list is as follows:
1x 1N4742A 12V Zener Diode $1.59
Model: 1N4742 | Catalog #: 276-563
1x 6V 50mAh Solar Cell Encap $14.99
Model: 277-1205 | Catalog #: 277-1205
Both of which are available at radioshack, I also had to cut up an old mini-usb cable for the input.
Let me know what you guys think!

Lol that is awesome. How long for a full charge?

I haven't tested how long the solar panel will take to charge the battery in the case, but the battery is only 1000mah, so I get another 30% in about an hour, hour and a half ish
Sent from my ADR6400L using XDA App

quite clever indeed what would happen if you used a couple solar panels in parallel?

I was thinking about it, at 14.99 a piece I just might. They produce 50ma each, so a second in parallel would be 100ma and charge twice as fast.
Sent from my ADR6400L using XDA App

Wow that's badass. You should consider marketing it
I've often wondered why no one has made a phone case with photoelectric cells that continuously charge your phone.
Sent from my ADR6400L using XDA App

there are not alot of times when i am not near electricity but i agree for those times when i am this is a sweet idea... camping over the weekend comes to mind.

i wish i had the money/time/resources to bring this to market, it is perfect for camping lol, my fiancee and i spend a week in the catskills every summer and im definitely bringing this along this year

Very nice . there is a solar charger in the market but who know how much time the charge.

I went a slightly different route. My Altoids charger will charge any USB device from a readily available 9v battery and one battery will get you several charges.
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It has a standard USB port on the end and the red LED indicates when the charger is turned on. A simple switch on the side turns it on and off and it's regulated to 5v like any USB port.
And then my wife completely forgot that I built it and bought me one of these for x-mas.
It's called a Powerstick and has a small lithium battery inside that charges from any USB port, and comes with a bunch of small adapters to fit many different USB devices. The Powerstick cost about $25 + shipping, but the Altoids charger cost me about $15 to build, including having to replace the voltage regulator once after accidentally smoking the first one during assembly. The Powerstick is slimmer, but the Altoids charger wins for geek factor. Also, the powerstick needs charged off USB, whereas I can walk into almost any gas station or Wal-Mart and buy a 9v battery. So the Altoids charger wins on long trips.

Dude make me one n I'll buy it from u
Sent from my ADR6400L using XDA App

Dangerous Dave said:
I went a slightly different route. My Altoids charger will charge any USB device from a readily available 9v battery and one battery will get you several charges.
Click to expand...
Click to collapse
I want this so bad. I'm gonna have to figure out how to put one of these together for myself.

Dangerous Dave said:
I went a slightly different route. My Altoids charger will charge any USB device from a readily available 9v battery and one battery will get you several charges.
It has a standard USB port on the end and the red LED indicates when the charger is turned on. A simple switch on the side turns it on and off and it's regulated to 5v like any USB port.
And then my wife completely forgot that I built it and bought me one of these for x-mas.
It's called a Powerstick and has a small lithium battery inside that charges from any USB port, and comes with a bunch of small adapters to fit many different USB devices. The Powerstick cost about $25 + shipping, but the Altoids charger cost me about $15 to build, including having to replace the voltage regulator once after accidentally smoking the first one during assembly. The Powerstick is slimmer, but the Altoids charger wins for geek factor. Also, the powerstick needs charged off USB, whereas I can walk into almost any gas station or Wal-Mart and buy a 9v battery. So the Altoids charger wins on long trips.
Click to expand...
Click to collapse
thats sick, i like how the battery is replaceable, you could even use a rechargeable 9v and a solar panel to recharge it XD
mine has a standard usb as well, i just didnt show the proper angle lol, its in the pic below. the portable charger inside mine is an energizer xpal1000

I am FAR too stupid for this crazy ass thing. lol

Dude you need to make a Youtube video on how to make this! You can even charge your phone while is in your pocket!!! (i don't know how safe that is but sounds super awesome!)

chepo84126 said:
Dude you need to make a Youtube video on how to make this! You can even charge your phone while is in your pocket!!! (i don't know how safe that is but sounds super awesome!)
Click to expand...
Click to collapse
i just took a little ingenuity and the info from this instructables post, nbd
http://www.instructables.com/id/How-to-make-a-Solar-USB-charger-simple/

krickatthedisco said:
I was thinking about it, at 14.99 a piece I just might. They produce 50ma each, so a second in parallel would be 100ma and charge twice as fast.
Sent from my ADR6400L using XDA App
Click to expand...
Click to collapse
It really depends on how much sunlight you have. Volts X watts determines the time it takes to charge. I am building mine tonight, and my calculations indicate about 8 hours for a full charge in bright sunlight.
Sent from my ADR6400L using XDA Premium App

Which charger is better?

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Well I have this two charger,idk which one is better for my battery,since I have 3 battery I take turn to charge them with the left charger the one that u can buy in ebay,ok back to the real question,when I charge my phone with the right charger (original) it take 2 hour to fully charge stock battery but not the china battery
,it take 5 hour to fully charge this China battery with original charger,if i use the ebay charger (wall charger) it charge all types of battery within 5 hour? Why is it so? Any idea?
Sent from my HTC Vision using XDA App

Recently bought another new battery ,seems the China battery have worn out a lot..(30min use it died off) Yoobao,was a reliable brand,i bought the 1500mah..and guess wat? It last three times longer than my stock battery
I use mainly for web browsing,facebook,music and more..
Sent from my HTC Desire Z using xda app-developers app

Probably the China charger identifies itself as an USB port, so that it can charge any type of battery with a lower amount of current. Shouldn't damage the battery if you charge it with the HTC one though.

bogdan5844 said:
Probably the China charger identifies itself as an USB port, so that it can charge any type of battery with a lower amount of current. Shouldn't damage the battery if you charge it with the HTC one though.
Click to expand...
Click to collapse
But about the amount of charge that store in the battery by using the China charger,will it like lack charge of a few hundred mah of the battery since its not genuine charger? I talking abt the battery charger that u put ur battery on that port and charge not the USB
Sent from my HTC Desire Z using xda app-developers app

The China charger will take to long to charge any battery above 1200mha . Since most of thoes chargers only charge at a crappy 500ma-700ma to get a good charge you need minimum of 800ma and 1000ma=1amp to get a good charge and still be able to use the phone while charging to reduce charger heat up. As for the wall battery only charger mimicking "USB" I'd does no such thing it just gives straight voltage to the battery and meters it till it reaches Max voltage and to avoid over charging the input amperage to the battery is like 200-500ma .. hopefully this helps you guys out on choosing a charger. Fyi all HTC official USB wall chargers are rated at 1amp
Sent from my T-Mobile G2 using xda app-developers app

arsonist63086 said:
The China charger will take to long to charge any battery above 1200mha . Since most of thoes chargers only charge at a crappy 500ma-700ma to get a good charge you need minimum of 800ma and 1000ma=1amp to get a good charge and still be able to use the phone while charging to reduce charger heat up. As for the wall battery only charger mimicking "USB" I'd does no such thing it just gives straight voltage to the battery and meters it till it reaches Max voltage and to avoid over charging the input amperage to the battery is like 200-500ma .. hopefully this helps you guys out on choosing a charger. Fyi all HTC official USB wall chargers are rated at 1amp
Sent from my T-Mobile G2 using xda app-developers app
Click to expand...
Click to collapse
So u are saying the official battery charger from HTC are better since its current is 1amp?
Sent from my HTC Desire Z using xda app-developers app

„Better” in this case means that it will charge faster. Think of it this way - you want to fill a glass with water. If you pour it from a bottle with a large opening, it will fill faster. If you pour it from a bottle with a smaller opening, it will fill slower.
Which bottle is better/worse? Depends on how fast you want to charge your battery.

bogdan5844 said:
„Better” in this case means that it will charge faster. Think of it this way - you want to fill a glass with water. If you pour it from a bottle with a large opening, it will fill faster. If you pour it from a bottle with a smaller opening, it will fill slower.
Which bottle is better/worse? Depends on how fast you want to charge your battery.
Click to expand...
Click to collapse
Since I got 4 battery(don't ask me y,2 of them were China battery it die off pretty fast,1 stock and yoobao)..I have no choice but to use the China charger,but China charger are much slower..but will it fill up the full capacity of the battery?
Sent from my HTC Desire Z using xda app-developers app

I've been using a Crackberry charger for over two years.

I see no reason why it should not. It's not like it suddenly stops at a certain percentage or something. Just be sure to not let it too much in case the charger doesn't have overcharging protection (a.k.a. it knows when the battery is full so it doesn't overcharge it)

bogdan5844 said:
I see no reason why it should not. It's not like it suddenly stops at a certain percentage or something. Just be sure to not let it too much in case the charger doesn't have overcharging protection (a.k.a. it knows when the battery is full so it doesn't overcharge it)
Click to expand...
Click to collapse
But the charger will turn blue from pink when its full,is it safe to use?
Sent from my HTC Desire Z using xda app-developers app

Steven How said:
But the charger will turn blue from pink when its full,is it safe to use?
Sent from my HTC Desire Z using xda app-developers app
Click to expand...
Click to collapse
If the charger has an indicator letting you know its full then most times it has a auto off function and wont overcharge the battery so its will be safe to use thoes chargers
Sent from my T-Mobile G2 using xda app-developers app

arsonist63086 said:
If the charger has an indicator letting you know its full then most times it has a auto off function and wont overcharge the battery so its will be safe to use thoes chargers
Sent from my T-Mobile G2 using xda app-developers app
Click to expand...
Click to collapse
Okay,thx
Sent from my HTC Desire Z using xda app-developers app

Recently I came across a few USB charger in my room,the China one (which I talk abt it earlier)have output of DC 5.2v 800ma,while stock HTC charger is output 5v 1a,and the galaxy tab charger has output of 5v 2a..which one would charge the battery faster? if I use the galaxy tab charger will it damage my battery?
Sent from my GT-P1010 using xda app-developers app

Interestingly, I used a cheap Samsung charger a few times (from an Galaxy Ace I think), and it seems to load much faster than the original charger...

Depends on amp and volts. Should say on charger
Sent from my HTC Vision using Tapatalk 2

samsung = 5.0 x 0.7amps

More current = faster charge, the percentage of completely full will depend on what current the charger stops.

Is it ok to charge my phone with a 5.3v with 0.75 a...instead of using the stock charger which was at 5v 1a? Will it damage the battery??
Sent from my LT25i using xda app-developers app

lithium ion batteries are very tricky. First we use lithium not because is good, because it can takes any form you want and it's cheap.
Lithium can't take deep discharge and can't takes overcharge, in most case it will catch on fire or explode. That's why in battery packs you need to '' balance'' them one by one to make sure that the first cell get full, will stop charging.
Those batteries are heat sensible, they dont like high temperature or low temperature. If you choose to store them, better to put them in the fridge than the freezer @ 40% charge
Of curse sellers'll say that they dont have memory effect, but it more or less true, it depends how you use them.
They loose their capacity with number of charges AND time. Yes, you can have a brand new lithium cell totaly dead because its too old. Due to internal cell oxidation. This permanent degradation in capacity is about 20% per year. Degradation is, however, highly dependent on the temperature at which the battery is stored.
Permanent Capacity Loss versus Storage Conditions Storage Temperature 40% Charge --------- 100% Charge
32°F (0°C) 2% loss after 1 year -------- 6% loss after 1 year
77°F (25°C) 4% loss after 1 year --------20% loss after 1 year
104°F (40°C) 15% loss after 1 year --------35% loss after 1 year
140°F (60°C) 25% loss after 1 year --------40% loss after 3 months
Click to expand...
Click to collapse
So yes, if you charge it TOO fast, it will affect the performance.
Slower is the better. I use my pc (500 mah) or a motorola charger 700 mah.
For charger with high amp, some cell phone batteries has a built in limiter, so it wont make much difference from a certain mah.
Lithium is good, but far from the best.
You can have all kind of info there : http://prowiki.isc.upenn.edu/wiki/Lithium_ion_batteries

Monoprice 5,000 mAh External Battery Charger

Product URL: http://www.monoprice.com/products/p...=10831&cs_id=1083110&p_id=9283&seq=1&format=1
Having the Nexus 4 as my main device at the moment, there are things that I have to adapt to.
For one, there is not a removable battery so I have to carefully manage my battery. Using this device moderately and managing data settings, wifi, brightness, etc.. you can easily go a whole day if not more.
But playing games is a big no-no when away from a charger, on any smartphone. Add being on IM, listening to Spotify, and running uTorrent you better be prepared to have a mini coal mine in your back pocket.
With my S3 I could just swap batteries and be good to go. When I had my S2 I could just throw on my 3500 mAh extended battery. When I had my Note 2 I didn't manage jack due to the monster battery.
So I started looking for an extended battery charger for my Nexus 4 so I wouldn't never had to worry. Monoprice, like always, seemed to offer one of the better ones and at a fair price. $28.95 for a 5,000 mAh external battery with 2 USB ports. One at 1 amp for smart phones and the other port at 2.1 amps for tablets.
Pros
Charges phone quickly
Unit is charged via micro USB
Nice soft coating
Size gives me 2+ full charges on Nexus 4
Good build quality
Uses USB to output charge
2.1 Amp port for tablets is a plus, even though I have not used it due to not having a tablet
LEDs, when button is clicked, show current charge for battery
Automatically stops charging when device is fully charged
Cons
Again a problem that I did not run into myself, but if you charge a smartphone and a tablet you only get 2.1 amps of total output.
Size could be a little slimmer, then again this is a 5,000 mAh battery. (There is a smaller unit available that could solve this if you need a smaller unit).
The button on the ext. Battery has the iPhone/iPad button design that I found to be quite tacky, but obviously does not effect its usability.
The battery when fully drained will take a while to charge, being a 5,000 mAh battery of course, thats a given.
To get a mental picture of the size of this battery, its about the size of an iPod classic, just a bit shorter. I also took some snapshots of it.
I have used the battery for 2 weeks and can say I am very satisfied with the product. I even found myself using it while at home on the couch or any other area where an outlet is hard to get to. On Christmas day, while watching basketball, I sat on the couch with the battery hooked to my Nexus 4. I didnt have to sit awkwardly by an outlet whenever my battery got low.
P.S. The days of having to lay logs in the pooper and noticing horrifically thar your phone only has 5% battery life left are over!

$36 extra for delivery to Sydney, Australia
I really wanna buy one of these or a similar decent quality but they seem expensive in Aus.

I'm thinking buying this one, smaller and maybe pocketable
Should be enough to full charge the nexus 1 time.
http://www.monoprice.com/products/p..._id=1083110&p_id=9752&seq=1&format=4#feedback

I have the same external battery have used it on vacation a few times. Makes for a nice backup power source and I have had no issues with it.

I was close to getting that one too, flashlight seemed useful. If it would have had a key hold or lanyard slot I would have gotten it for my keys.
I went for the bigger battery.
Sent from my Nexus 4 using xda app-developers app

Azralag said:
I was close to getting that one too, flashlight seemed useful. If it would have had a key hold or lanyard slot I would have gotten it for my keys.
I went for the bigger battery.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
thanks for the heads up on this charger, i just ordered one. how long did it take to charge your nexus 4? did you get a chance to test the 2A usb yet?

Holy **** is that an iPhone home button on it lolll
Sent from my Nexus 4 using xda premium

neotekz said:
thanks for the heads up on this charger, i just ordered one. how long did it take to charge your nexus 4? did you get a chance to test the 2A usb yet?
Click to expand...
Click to collapse
I have not used the 2.1 amp USB yet. Charging my Nexus 4 was just as quick as on then wall charger, if not a tad quicker.
Sent from my Nexus 4 using xda app-developers app

alleyezondisromo said:
Holy **** is that an iPhone home button on it lolll
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
Yeah that's one of the things I listed as a con, looks tacky.
Sent from my Nexus 4 using xda app-developers app

So is there any chance that this charger will fit into a jeans pocket?

Stupid question, but which port do you normally use to charge your nexus 4?
Sent from my Nexus 4 using xda premium

Any port will do...either 1A or 2.1A
The phone/battery have a regulator/BMS...you plug in 2.1A port the phone will only draw what it needs and normally is limited to 1A or so
I have 20K power bank for long trip and a small 5600mah which is small enough for pocket (Google "ipolar" & "Michi strengtholic")
Sent from my Nexus 4 using xda premium

gagdude said:
Stupid question, but which port do you normally use to charge your nexus 4?
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
I use the 1 Amp.
Sent from my Nexus 4 using xda app-developers app

Thanks for the review. Been wanting a battery charger for a while and just ordered this one. I used the coupon code "INCENTIVE" to get 20% off. It expires today though.

i just got the charger today, the 1a port does deliver around 900mah. i think this is more of the phone throttling down the current since the 1.2a factory charger shows the same output.
The 2a port works on my phone(still only delivers around 900mah) but wont charge my nexus 7 at all.

Looks a must-have battery for those who travel.
Can anyone suggest a coupon? I tried looking online but couldn't find anything useful.
Thanks!

Just out of curiosity, how long does it take to charge these external battery packs from 0% to fully charge?

SovereigN7 said:
Just out of curiosity, how long does it take to charge these external battery packs from 0% to fully charge?
Click to expand...
Click to collapse
It takes pretty long. I would guess around 6 hours using my nexus 4 adapter.

The 9000mAh battery is only $29 right now.
http://www.monoprice.com/products/p...=10831&cs_id=1083110&p_id=9531&seq=1&format=2
Costs a dollar more than the 5000mAh but packs a lot more juice.

Just picked up the 5000mAh... its good.. I charged my N4 and my moms phone at the same time.. for some reason it doesnt want to charge my Asus Transformer TF300... that sucks.. tried both ports... Its fairly small also... I like it definitely a good buy.. I also bought another cable for my N4 coz the stock cable sucks money balls.. these ones are gold plated and works really well...
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$40 USB "Qi" charger found

Couldn't find this in a forum search
http://www.fasttech.com/products/1154/10001946/1215400
Says Qi and works with N4, but can't find it in the Qi site and there's no Qi symbol on it, so probably not approved (but neither are all the N4's currently out there [pre-rev 12])
$40 shipped and could be the basis of an in-car solution...
Anyone tried it?

http://forum.xda-developers.com/showthread.php?t=2074862
Same item it looks like just different description and what not - from the same vendor.

parker09 said:
http://forum.xda-developers.com/showthread.php?t=2074862
Same item it looks like just different description and what not - from the same vendor.
Click to expand...
Click to collapse
Yup, I (re)found the USB version.

Fasttech USB Qi Charger
Ordered mine today, says 10-14 days shipping directly from fasttech. When I get it ill throw up some pics and a review on how it works.

WibblyW said:
Couldn't find this in a forum search
http://www.fasttech.com/products/1154/10001946/1215400
Says Qi and works with N4, but can't find it in the Qi site and there's no Qi symbol on it, so probably not approved (but neither are all the N4's currently out there [pre-rev 12])
$40 shipped and could be the basis of an in-car solution...
Anyone tried it?
Click to expand...
Click to collapse
On an unrelated note, I've never heard of this website before, it looks very promising! I have a feeling I will be throwing my money at my screen soon.

Looking forward to a review!

wow. this looks very clean OP.
anticipating some pictures and review.

More detail and N4 references here
http://mcpower2012.en.ecplaza.net/2013-5v-usb-qi-wireless--356088-2839504.html

Found another thread for something very similar: http://forum.xda-developers.com/showthread.php?t=2074862

Efficient output is just 500-700mA? Too small to charge N4?
I thought the standard one is around 1A or over.
Thanks.

500-700 mA is perfectly ok for charging. When you charge from a computer via USB, the max current is 500 mA unless you use kernel tweaks.
Sent from my Nexus 4 using Tapatalk 2

ma678 said:
Efficient output is just 500-700mA? Too small to charge N4?
I thought the standard one is around 1A or over.
Thanks.
Click to expand...
Click to collapse
It's got to depend on the output (mA) the USB power adaptor has to offer too. They even show it connected to a laptop USB port. So I think it WILL charge, but maybe significantly slower than a direct power connection.
By using a lower output USB power supply, sounds like you might be able to trade charge speed with temperature rise. If so it may be ideal as a charger to keep your phone topped up. Kind of like a low power trickle charger, which would be fine if my phone is on it most of the day... I actually don't like the idea of Qi chargers that make the phone get hot - seems to be trading convenience and wear on the phone's USB connector with reduced battery service life as it keeps going through nasty heat cycles?
Decided to risk it and order one
Sent from my Nexus 4 using Tapatalk 2

jkoljo said:
500-700 mA is perfectly ok for charging. When you charge from a computer via USB, the max current is 500 mA unless you use kernel tweaks.
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
not sure about that, it might charge If your not doing anything, but say if using gps it might not supply enough juice to charge fast enough
Sent from my Galaxy Nexus using Tapatalk 2

BrianDigital said:
not sure about that, it might charge If your not doing anything, but say if using gps it might not supply enough juice to charge fast enough
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
I agree, Used in a car with GPS on, maybe pulling 3G data for maps, bright screen, etc., it's likely that despite this charger, the phone will slowly go flat. And get hot doing so... All that energy from the battery/charger has to go somewhere - mainly heat once the battery is charged. If the phone's consuming, say 750mA at around 4.1v battery voltage, that's around 3W of heat to dissipate.

I am investing time looking for a Qi charger but that problem appears to be present on several cheap alternatives, the current they supply is not enough, or you might expend a couple of extra hours charging your phone

Just a quick update, ordered from fast tech on Jan 29th and received shipping notification today (Jan. 31st), registered airmail with tracking from Hong Kong post.
Sent from my Nexus 4 using xda app-developers app

I do have this wireless charger. Ordered from aliexpress, it's always the same with different branding and logos.
It does the job, charging.
But:
Need to be very precise when positioning it
Back glass make the phone sliding, and cancel all the effort offered in the above point, making the phone not charging
I recommend to wait for a charger with more than only one wireless charging chip/antenna.

Ok I have this charger now. On first charge and working ok so far... Seems to be best in this position. Has now cut off an an indicated 99%...
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Lining up the edge of the charger with where the bottom of the LCD is, seems reliable. Using an XtremeGuard style protector on the back, which gives enough friction to stop sliding if the charger is horizontal and the phone vibrates.
Above is FastTech image. I'm using stock N7 charger and cable at the moment because it was handy. Unit came with a USB charger and cable (with EU plug - I'm UK based)
----
Picked up phone and used it to 98%. Returned to charger and it charged back to 99%, but didn't beep this time when charging started. Maybe it needs to be more discharged before this happens....
----
Now at 100%. Charger seems to poll the Nexus about every 30 secs (solid blue light for a few secs) to see if it needs charging. Then light goes off. When it charges, the blue light flashes slowly but continuously.

Did anybody try the Large models?
For some reason they are cheaper even though they come in black or white and have the Qi logo/writing on it.

facetubespam said:
Did anybody try the Large models?
For some reason they are cheaper even though they come in black or white and have the Qi logo/writing on it.
Click to expand...
Click to collapse
They are reported to work. I wanted the flexibility of being able to use alternate sources of power (car, pc, wall adaptor). have yet to try limited power available from a PC's USB port...

Recommendations for an External Battery Charger?

Can anyone recommend a high quality external battery charger for the S4? I'm familiar with Samsung's version - however, it only supports 700 mA, so it will take forever to charge a battery.
Are there any high quality external battery chargers that support 2A charging? Obviously, quality protection circuits are a must.
Clarification: I'm not looking for an external battery pack. I'm looking for a charger that will charge a spare OEM S4 battery.

Limeaide or newtrent
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app

trdspectacoma said:
Limeaide or newtrent
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
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I added a clarification above. I'm not looking for an external battery pack. I'm looking for a charger that will charge a spare OEM S4 battery.

I see sorry misread. Not sure about external extra battery chargers
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app

Haphim said:
Can anyone recommend a high quality external battery charger for the S4? I'm familiar with Samsung's version - however, it only supports 700 mA, so it will take forever to charge a battery.
Are there any high quality external battery chargers that support 2A charging? Obviously, quality protection circuits are a must.
Clarification: I'm not looking for an external battery pack. I'm looking for a charger that will charge a spare OEM S4 battery.
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Click to collapse
I believe that's incorrect regardling the output of the charger. I'll have to take a picture of it, but it's definitely higher than 700 ma.
My samsung has two output ma, one is 1.7 amps. The other is 450 ma.

Haphim said:
Can anyone recommend a high quality external battery charger for the S4? I'm familiar with Samsung's version - however, it only supports 700 mA, so it will take forever to charge a battery.
Are there any high quality external battery chargers that support 2A charging? Obviously, quality protection circuits are a must.
Clarification: I'm not looking for an external battery pack. I'm looking for a charger that will charge a spare OEM S4 battery.
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Click to collapse
Just bought the samsung oem !!!
1.7A output not 700mAh ... its 1700mAh/1.7A
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anuj6111 said:
Just bought the samsung oem !!!
1.7A output not 700mAh ... its 1700mAh/1.7A
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Aha! So their website lists the wrong specs. In this case, that's good. Thank you so much for posting this!

Haphim said:
Aha! So their website lists the wrong specs. In this case, that's good. Thank you so much for posting this!
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No problem !! :good::good:
the "Thanks" button is right there ....

anuj6111 said:
No problem !! :good::good:
the "Thanks" button is right there ....
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Clicked!

The reason website lists it as 700mA is due to the charger it comes with it is a 700mA charger.
I mean probably if you connect this to your 2A Samsung charger it will charge at 1.7mA, however if you connect it to the charger comes inside the box, it can only do 700mA at most.

fincan said:
The reason website lists it as 700mA is due to the charger it comes with it is a 700mA charger.
I mean probably if you connect this to your 2A Samsung charger it will charge at 1.7mA, however if you connect it to the charger comes inside the box, it can only do 700mA at most.
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Ah, that makes sense. What is the current rating of the default charger that comes with the S4? (mine is en route)

fincan said:
The reason website lists it as 700mA is due to the charger it comes with it is a 700mA charger.
I mean probably if you connect this to your 2A Samsung charger it will charge at 1.7mA, however if you connect it to the charger comes inside the box, it can only do 700mA at most.
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Nope the official website does not list that a charger is sent within the package...
i recieved mine without a charger .... but it was a single pack not like the fake battery n charger in different packs....
there is no charger with it just using the s4 charger output 2.0A - with this charger output 1.7A....
http://www.samsung.com/uk/consumer/...es/smartphone-accessories/EB-K600BEWEGWW-spec
The tech specs on the website state 1.7A.....

anuj6111 said:
http://www.samsung.com/uk/consumer/...es/smartphone-accessories/EB-K600BEWEGWW-spec
The tech specs on the website state 1.7A.....
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Hmm. I wonder if the UK version is different. Because here are the US specifications:
http://www.samsung.com/us/mobile/cell-phones-accessories/EB-K600BUWESTA-specs
And as you can see, it lists 700 mA. (Technically, it lists 700 mAh, so I guess if there's one mistake, there could be a second...)

Haphim said:
Hmm. I wonder if the UK version is different. Because here are the US specifications:
http://www.samsung.com/us/mobile/cell-phones-accessories/EB-K600BUWESTA-specs
And as you can see, it lists 700 mA. (Technically, it lists 700 mAh, so I guess if there's one mistake, there could be a second...)
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Click to collapse
samsung gone bonkers !!!! :laugh::laugh: