Develop Bugs

[Q] Defy with charger of iPad working-

Hi guys, yesterday I lost my original charger of the Defy, but as I had another charger, but the iPad, just connecting and using it the same. Defy the loaded very quickly, in about 1 hour. I noticed that the charger voltage iPad is 10w while the Defy is just 5w. Will I have any problem if you continue to use or not?

The charger of defy outputs 5.0V, 750mA,
it's not safe if your charging voltage is too high

Please answer full specification of the charger of Defy, because I lose my charger original.
Specification Charger iPad:
10W USB Adapter
Input: 100-240V ~0,45A(0,45A) 50-60Hz Output: 5.1V ###2.1A
Thanks

car charger for KF?

I am looking for reliable car charger for KF. Any suggestions?

It needs to output 1.8v 1.8amps .. which is more than most car adapters will support.

krelvinaz said:
It needs to output 1.8v .. which is more than most car adapters will support.
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So, no car charging? Even slow? I mean, you can charge with 1A, slow but can do a job?

krelvinaz said:
It needs to output 1.8v .. which is more than most car adapters will support.
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I think you are wrong about the 1.8v, my charger says 5v @ 1.8 amps, which means you could use any usb charger rated at over 1.8 amps.

stomp_442 said:
I think you are wrong about the 1.8v, my charger says 5v @ 1.8 amps, which means you could use any usb charger rated at over 1.8 amps.
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Meant to say 1.8amps not volts. Most car adapters are 1amp or less. Many car lighters (the socket) max out at 1amp. Utility plugs may go higher, but the charger plug you use itself needs to support it.

You are right about the 1amp though, anything over 1amp will cost quite a bit more than the few dollars a 1amp adapter costs . In that case it would be worth looking into seeing if the manufacturer of the Kindle Fire sells a car charger, but I would only use that for trips, there is no way I would leave my KF charging in an unattended automobile.

Your best bet would be to find a car charger with a USB port on it that can support an iPad 2. If it can charge an iPad, it can charge the Kindle. Tons of good options on Amazon.

Charge
Wouldnt any cigarette lighter plug with a USB connection work?

schleppy said:
Your best bet would be to find a car charger with a USB port on it that can support an iPad 2. If it can charge an iPad, it can charge the Kindle. Tons of good options on Amazon.
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I bought the "GTMax Black 2-Port USB Car Charger Adapter 2A" from Amazon, it has two usb slots, one with 1A and the other 2.1A. Works great on my Bionic, have yet to try it w/ the kindle though.

I'm using a 2AMP charger as wel and it charges just fine. Most chargers designed for the IPAD will work well. Just make sure it has a regular USB port on it and not the apple connector

Any USB charger with a micro connector will charge it provided the KF is using less power at the time than the charger is able to provide. It doesn't have to be rated for 1.8 amps. I've used everything from a 0.5 amp Motorola RAZR charger to a 2.0 amp charger and they've all done the job. The only difference was the time required. I can't see why it being a car charger would make any difference either. My T-Mobile 1 amp car charger worked just fine with it.

Most USB chargers will work
Hi,
As others have said, most USB chargers will work. However, there is one exception that I ran into recently and its well documented on the forums here - if your battery gets too flat. e.g. you left it at home when you went away, it will need at least 5V @ 1.6A to actually recharge.
Regards

Just a quick question about External Batteries

I'm about to buy one of the i9300 compatible external batteries, such as the Anker Astro 2, Anker Astro 3 or one of the Powergen brand (The 12000 mAh one looks AWESOME). But before I do that, I was wondering if the charge ratio from this kind of batteries to the device is similar to the PC USB (Which takes forever) or the AC charger (That would be very nice).
The aim is to avoid running out of power in a long trip with heavy use of the device.
Anyone of you have experience with this kind of stuff? any recommendations?
Thanks for your time guys.

It should be similar to the charge rate of the wall charger. The astro3 has dual 5v 2A outputs and the astro2 has a 5v 1A and a 5v 2A output. The stock wall wart outputs 5v 1A.
Sent from my SGH-T999

I recently bought this for traveling:
Anker® Astro3E Mobile Battery Pack 10000mAh
I'm very happy with it, the charging is fast and the capacity seems to be as advertised. Not too big, and even looks pretty nice
Sent from my Nexus 7 using Tapatalk 2

Wired and wireless charging speed

Hello all,
I am trying to figure out which is the fastest charger, wired or wireless for the Nexus 5. To do this, I suggest we gather measurements about the charging speed for the phone charging when it has less than 75% charge.
My results are the following so far:
T-Mobile dual usb wall charger 700-800 mA
this ebay Qi charger [1] 200-300 mA
[1] http://www.ebay.com/itm/Wireless-Qi...l_Phone_PDA_Chargers&var=&hash=item51b121c146
Note that the T-mobile dual USB charger was the power source when using the Qi charger and the same microUSB cable was used in both cases.
Does anybody have a wired or wireless charger that can charge faster?
Also, I am using the Elixir 2 app to measure the mA, is there an alternative that does not require the screen on (I feel that it may affect the measurements)?

The one that outputs more mah will charge faster.
Sent from my Nexus 5 using Tapatalk

They're both awful outputs u need at least 1000 mA / 1A output. You can damage the battery with underpowered charge rates
Also that eBay link states 1A output in the description
Sent from my Nexus 5 using Tapatalk

Guys, for the wired chargers, we are not talking about the STATED MAXIMUM OUTPUT here, we are talking about the output IN PRACTICE. Most chargers are rated for instantaneous output (it can output 1A or 2A or whatever is listed on the charger, but only for a millisecond, then the rate will fall off).
Please use the app and let me know what your rates for wired charging are (not that the rates fall off when the device is charged more than 75%, so try to test when the charge is lower than that). I bet the rate you find will be lower than 800mA, but if this is not the case, I am curous on the charger and cable that you use.
As for the wireless charger, I know it is very very bad, am trying to return it.

A poor/cheap usb cable will make a massive difference too. I once had a cable that wouldn't let more than 384mA through it!
Sent from my Nexus 5 using Tapatalk

Exactly! This is why I picked the cable I am using now, but I could not get over 900mA with this combination of cable + charger. The Charger is a T-mobile dual USB 3A charger and in my opinion it is very good.

The stock wired charger is rated for 1.2A and actually charges at just over 1 A. The charging chipset in the phone limits charging to 1.5 A max.
The nexus wireless charger charges at 750 mA max. Bad positioning and cases will reduce wireless charging efficiency though.
http://www.anandtech.com/show/7517/google-nexus-5-review/3

I've noticed that during wireless charging my phone will charge at 500-600mA up until 85-87% and after that it will charge at 300mA to 100%, so make sure when you are testing to test at lower battery capacity. Also, try wireless charging from a USB port of a computer, I've noticed that I got better performance form USB port than from 2A touchpad charger.
Sent from my Nexus 5 using XDA Premium 4 mobile app

Wired charging is always going to be faster than wireless charging. Wireless charging on the Nexus 4 Orb takes about twice as long as charging via the supplied wired charger with the Nexus 5. Technology is going to have to advance quite a bit before wireless charging eclipses wired charging. There is an inherent inefficiency with wireless charging that wired charging does not have.

i bough one of those white, skewed ones off ebay for 10€ shipped and am pretty happy with it!

Is Qualcomm quick charge 2.0 supported on the OnePlus 3?

Hi guys,
Just a simple question... Is Qualcomm Quick Charge 2.0 supported on the OnePlus 3?
I know there is Dash Charge (which is great), but I have a powerbank which supports Quick Charge 2.0...
I want to know if it wil charge faster than a regular 5V/1A USB port.
Thx!

Same problem here, would like to know this too. Can anyone with a OP3 try and let us know the different charging times with a normal charger, QC QC2.0 and Dash charger?
Sent from my LG-H955 using XDA-Developers mobile app

I don't have a Quick Charge charger, but with another charger the OP3 pulls around 1.5 A @ 5V = 7.5 W from it. This is the USB compliant amount i think.
I don't think that the OP3 supports any version of Quick Charge... But with a capable charger (non-Dash) it's pretty quick, too! In my car it gains fairly quickly, even though i'm navigation with google maps and i don't have a Dash-Charge car charger! With previous phones (LG G3 for example) the phone even LOST battery capacity while being plugged in!

Normal 5V 2.4A Charger: 1.5A @ 5V
5V 3A Quick Car Charger (for Nexus 5X/6p): 1.5A @ 5V
Quick Charge 2.0 Wall Charger: 1.5A @ 5V... you're beginning to get the idea...
Dash Charge Wall Charger: 3.5A @ 5V

And I tried a genuine 5V 1A iphone charger, 0.5A @ 5V

GeneralDisaray2 said:
Normal 5V 2.4A Charger: 1.5A @ 5V
5V 3A Quick Car Charger (for Nexus 5X/6p): 1.5A @ 5V
Quick Charge 2.0 Wall Charger: 1.5A @ 5V... you're beginning to get the idea...
Dash Charge Wall Charger: 3.5A @ 5V
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This.

Just did the test by myself with the 'Ampere' app.
Battery was at 55%.
Dash Charge: 3330 mA
Qualcomm Quick Charge 2.0 Charger: 1420 mA
PC USB Port: 380 mA
My Nexus 6 charges at 2050 mA when connected to the Qualcomm Quick Charge 2.0 Charger.
Is it in some way possible to 'tweak' the OP3 so it can take 2000 mA when connected to a QC 2.0 charger?
I'm using ElementalX kernel btw.

OP3 is not quickcharge compatible so when connected to a quickcharge charger, the charger is in normal mode at 5V with a maximum of intensity that depend on the charger.
BUT the OP3 have only 3 charging step, one at 5V 0.5A, one at 5V 1.5A and then 5V 3.5A only if it's connected to a dash charger with a dash cable (or a oppo vooc with an adapter).
So for example, you connect to a 5V 1A charger, it will charge at 0.5V, like on a computer. But if it can draw 1.5A, it will do it but not above that unless a dash charger.
I tried many charger and it will not charge at another intensity.