Develop Bugs

Best car charger for ET4G?

I seem to have very slow charging times in the car. I'd like a quality car charger that has safe but fast charging times. I know some of the 2.1 A ones only work for iphones and ipads. Any recommendations? I'd prefer one that has a usb port so I can plug in a straight cable or one that comes with a straight cables. The coiled ones don't work well for my needs.
EDIT - I am very sorry - I had the wrong forum open. Moderators if you could please move this thread

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I like this one, charges at 950ma which is good for a car charger. Its coiled but charges fast.
http://www.amazon.com/Motorola-Vehi...Q9CA/ref=sr_1_1?ie=UTF8&qid=1318115435&sr=8-1
This one works well also, car and house charger. Charges at 850ma.
http://www.ebay.com/itm/OEM-Sprint-...ccessories&hash=item1e675d19f0#ht_2790wt_1322

Thanks to tenaciousj for kindly responding to your post!!
(By the way, this really belongs in Accessories, not Development.)

Whoops - VERY VERY SORRY - had the wrong forum open.

Search for the Palm Pre car charger on Amazon. Cheap USB charger and works great.
Sent from my SPH-D710 using XDA Premium App

The Motorola one above does NOT charge at 950ma for me. It only charges at 100-300ma which is the same as USB charging, VERY slow. This sucks because it's practically useless. When I used my EVO 4G with this charger, it was charging at the ~950ma...
http://www.amazon.com/Motorola-Vehi...Q9CA/ref=sr_1_1?ie=UTF8&qid=1318115435&sr=8-1

This is a perfect topic for the Android Development forum.

mprziv said:
This is a perfect topic for the Android Development forum.
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I concur.... :-/
Sent from my SPH-D710 using xda premium

lol this thread went better than expected

tracerit said:
The Motorola one above does NOT charge at 950ma for me. It only charges at 100-300ma which is the same as USB charging, VERY slow. This sucks because it's practically useless. When I used my EVO 4G with this charger, it was charging at the ~950ma...
http://www.amazon.com/Motorola-Vehi...Q9CA/ref=sr_1_1?ie=UTF8&qid=1318115435&sr=8-1
Click to expand...
Click to collapse
How are you measuring the charge rate? I have that same charger.

m4zt3r said:
How are you measuring the charge rate? I have that same charger.
Click to expand...
Click to collapse
through Battery Monitor Widget. Also during my 30min drive to work, it'll only charge up about about 6-8%. With the EVO 4G, it'd be more along the lines of 20-30% i think.

I'm using the one I got with my original epic. I did not know they make car chargers different. I thought they were all the same charging rate.
Sent From My Evo Killer!!!

I use a ac/dc converter it has 2 ac outlets and one usb. I also have a jlo car charger for a gps that pushes out 1Amp. Both of those have served me well
Sent from my SPH-D710 using XDA App

I would use a beer can to place the device on and a miniusb cable.
Sent from my SPH-D710 using XDA App

OP made a genuine mistake and isn't an idiot, so I won't Russian Nyan Cat this thread...

I Have two of these and a whole mess of these. When a cable goes bad from being mistreated, I grab another from the glovebox and stick it in the USB slot. If you have an older device that uses mini usb (slacker G2 for instance), you can just switch out the cable. After searching around, this one seems like it would push out more charging power, though. The Belkin one doesn't have a rating and the Kensington one pushes out 2.1 amps. I think I am going to upgrade.

It's all good. I maybe we can get this moved.
Samsung Galaxy S II

You need a charger that can put out more than 700 mA and shorts the D+ and D- lines of the USB port together.
If they aren't shorted together, the phone will go into USB charger mode, which will limit current to 450 mA if you have the same charging chip as the I9100, and 400 mA if you have the same charging chip as the I777 on AT&T.
Stock current limits on the I9100 and I777 are both 650 mA.
On the I9100, the current limits can be tweaked with some kernel mods. On the 777, they are fixed in hardware. Unknown about the Sprint variant.

k0nane said:
OP made a genuine mistake and isn't an idiot, so I won't Russian Nyan Cat this thread...
Click to expand...
Click to collapse
I was kinda looking forward to that

Nexus Wall Charger?

Since the Verizon Nexus is out, is anyone not going to be using the supplied wall plug charger adapter because they have something else/better ? I bought mine from the UK and it came with this behemoth sized "international" adapter that makes weird noises when it rapes/charges my battery :x
if any1 has a charger they dont really want, id be willing to throw in a few bucks for it :] plus shipping of course

As far as I know (and please correct me if I'm wrong) you can use any Android charger with micro USB. In fact, I used my OG Droid car charger on the way home and have it plugged into the Droid wall charger as I type this. It's working just fine.
So if you have a charger from an old Android phone, try it out.
p.s.
I would refrain from using that euro charger. You might fry your battery. Happened to a friend of mine from Australia earlier this year when he first moved here and didn't have a US phone.

arrtoodeetoo said:
As far as I know (and please correct me if I'm wrong) you can use any Android charger with micro USB. In fact, I used my OG Droid car charger on the way home and have it plugged into the Droid wall charger as I type this. It's working just fine.
So if you have a charger from an old Android phone, try it out.
p.s.
I would refrain from using that euro charger. You might fry your battery. Happened to a friend of mine from Australia earlier this year when he first moved here and didn't have a US phone.
Click to expand...
Click to collapse
I actually don't. I sold/returned all my old phones along with their adapters. I bought a $25 charger but its not "compatible" with my phone so, instead of charging at its usual 1amp, it only does 5mAh

Here's a link to a wall charger from Amazon,
http://www.amazon.com/Samsung-Trave...E70I/ref=sr_1_1?ie=UTF8&qid=1323972023&sr=8-1
$3.12.. looks like the same charger from Galaxy S1 and Nexus S.
Comparing the USB from Nexus S & Galaxy Nexus.. the Nexus S has a longer USB cable.

I'm interested in this as well. I'd like to identify another charger that can charge at full speed so I can replace that bulky U.K. charger.

zephiK said:
Here's a link to a wall charger from Amazon,
http://www.amazon.com/Samsung-Trave...E70I/ref=sr_1_1?ie=UTF8&qid=1323972023&sr=8-1
$3.12.. looks like the same charger from Galaxy S1 and Nexus S.
Comparing the USB from Nexus S & Galaxy Nexus.. the Nexus S has a longer USB cable.
Click to expand...
Click to collapse
dunno if thats 5mah or 1amp , and it looks kind of bad :/

Dmw017 said:
dunno if thats 5mah or 1amp , and it looks kind of bad :/
Click to expand...
Click to collapse
Should be .7amp, the proper voltage for this phone.

Amazon Best Sellers Rank: #37 in Cell Phones & Accessories (See Top 100 in Cell Phones & Accessories)
#2 in Cell Phones & Accessories > Accessories > Chargers > Wall Chargers
Can't be that bad.
http://store.androidcentral.com/samsung-travel-charger/5A17A8540.htm this looks more legit but you're paying a lot more.

add me to the list of the interested!

I already posted this a couple weeks back:
http://forum.xda-developers.com/showthread.php?t=1376045

The iPhone's wall charger works fine, it's almost identical to Samsung's but it's white.
Same amprage and everything
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Best Charger For GNex (or any USB device)

I've been hunting for an extra, high quality, 2A USB charger for my devices - but I didn't want to pay $25-$30 to get a Samsung or Asus 2A USB charger. And then I came across this blog entry by Ken Shirriff where he went and reviewed 12 different USB chargers including genuine and fake apple chargers + other brands.
http://goo.gl/rym3M
Really good and informative post. Definitely recommend a read. For the Cole's notes version, apple makes great USB chargers ... but not the best. The best USB charger in this review actually turned out to be the USB charger that came with the ill-fated HP TouchPad. This charger has very low noise and voltage drop characteristics.
What's more, you can actually get these great HP chargers for $15 on eBay. Or via Kijiji for $15 if you're in the Toronto area.
Mine is off Kijiji and here are logged screenshots of my GNex charging from 12% to 100% with both the Samsung charger that came with it and the HP Charger.
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FYI, I use this charger for both my GNex and my N7. I've posted OEM vs HP Charger graphs from my N7 here.

I see nothing in those graphs that makes me think one is better than the other. The lines are virtually identical, they go from 12%-100% in the same amount of time.
Sent from my Galaxy Nexus using xda app-developers app

RyanTX said:
I see nothing in those graphs that makes me think one is better than the other. The lines are virtually identical, they go from 12%-100% in the same amount of time.
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
It doesn't buzz like the stock one and it doesn't get hot when charging the GNex at ~1A like the stock one does. As well, this charger is capable of handling tablet charging as well. Guess I should have indicated all this in my first post.

RyanTX said:
I see nothing in those graphs that makes me think one is better than the other. The lines are virtually identical, they go from 12%-100% in the same amount of time.
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
The post is rating the chargers on far more than just how quickly it charges a phone.
Just to add my two cents, anecdotally, before even seeing this post, I was going to say that the touchpad chargers have been the best I've used also. Glad i bought 4 or 5 of them for $5/each when hp went on their firesale binge.

I read that same article and bough two of them months ago for $6. They are great. They do have a slight buzz if you put your ear up to them but nothing like the samsung one. Highly recommend them.

Interesting article. Not really sure what to make of it though, beyond not buying counterfeit chargers?

I've actually got a bunch of those HP chargers for my Gnex. I got them straight from HP for $4 each last summer. Very awesome chargers.

Is it healthy to charge the battery that fast ?

Cupellom said:
Is it healthy to charge the battery that fast ?
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I think its not.
Sent from my Galaxy Nexus using Tapatalk

Cupellom said:
Is it healthy to charge the battery that fast ?
Click to expand...
Click to collapse
palco2 said:
I think its not.
Sent from my Galaxy Nexus using Tapatalk
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Well... the battery charges at the same speed for both the stock 1A charger and the HP 2A charger. The device itself regulates how much power it will draw, and drawing 1A from a 2A charger is surely more efficient and will result in a longer lasting and better charger, as well as one that can be used for tablets and other USB devices that want to draw more than 1A. I wonder if you can take the 2A charger and put a USB Splitter or something on there and charge 2 1A devices at the same time... I'd imagine so.

I use my OEM Galaxy S4 charger. It charges all of my devices faster than any other charger I've ever tried.

Car charger that's recognised as an AC charger

Has anybody already found a charger for in the car, which is recognised by the phone as an AC charger? (besides from the official HTC car dock/charger)
Because the charger I'm using is recognised as an USB charger, and therefore doesn't charge faster then 500mA.

Bart1981 said:
Has anybody already found a charger for in the car, which is recognised by the phone as an AC charger? (besides from the official HTC car dock/charger)
Because the charger I'm using is recognised as an USB charger, and therefore doesn't charge faster then 500mA.
Click to expand...
Click to collapse
All the chargers I have are recognised as notmal charger, never had this problem you mentioned.

No problems with my car charger either
Sent from my HTC One using Tapatalk 2

clninja said:
No problems with my car charger either
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idanfima said:
All the chargers I have are recognised as notmal charger, never had this problem you mentioned.
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Click to collapse
What chargers are you using?
And it's not a big problem, it's not even a problem, it's just how the charger/phone works..

Bart1981 said:
What chargers are you using?
And it's not a big problem, it's not even a problem, it's just how the charger/phone works..
Click to expand...
Click to collapse
having it recognize that it is AC vs USB is one problem... but even if it says it is charging via AC, it doesn't always pull more than 500ma (even if it is a 2.1a charger, etc). i've been testing chargers and inverters w/ac adapters all week. i've got one more to test before i narrow down the issue (hopefully).

this was just delivered: http://www.amazon.com/gp/product/B009TBF7IG/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1
tested it using my normal method-- watching Battery Monitor Widget for about 20 minutes, while running Ingress. the app reported battery draw fluxuated between -56 and +300. i've been using Ingress as my test app because it tends to really hammer my battery. this new charger doesn't seem to be as consistent as the 5Vdc/2A wall charger i use with an inverter, but i'm going to keep trying it to see how it works in 'real world' cases over about an hour or two. i'll let you know, but this charger is potentially an answer to this car charger issue.
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Ok that looks promising indeed. Does the phone recognise it as an ac charger?
Too bad I can't order from amazon.com and on amazon.co.uk it's not offered.
Sent from my HTC One using xda premium

Bart1981 said:
Ok that looks promising indeed. Does the phone recognise it as an ac charger?
Too bad I can't order from amazon.com and on amazon.co.uk it's not offered.
Sent from my HTC One using xda premium
Click to expand...
Click to collapse
Yes, it is recognized as AC-- but so are most of the car adapters I've tried (mostly, those just have the 2 middle pins on the USB port shorted), but they have a lower wattage output, typically at like 6-8W. I bought this one specifically because it says it can output 5Vdc/2A, or 10W, per USB port. I suspect it will dip below 10W when both ports try to output at max capacity, but I'll be able to test that this weekend (and aside from testing, there's virtually no time where I'd have a need of that).
I performed a second test, about 30 minutes of talking on my phone via a bluetooth headset, Ingress open and running, push emails for GMail and Exchange, full brightness and volume, etc, and it only dropped down to discharging a handful of times. This is definitely much closer to the results I've gotten when testing a 5Vdc/2A output DC adapter.
You might be able to find other 5Vdc/2A adapters on Amazon UK, and ruling out the 'piece of junk' factor, hopefully some of them will work. I'd think that for the duds, you can at least return them for a refund by stating they don't output the proper wattage as stated on their product pages.

Compact/mini charger that actually outputs 1.0a

Hi, i'm a heavy user some days, so I need a compact charger I can put on my keyring. I thought I had the perfect one of eBay for ~$3 (http://www.ebay.com.au/itm/200720521235?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649)
However, after several tests using "Charger Timer" I figured out that it only chargers at 500ma-thus making it take a very long time to charge. The point in this charger is to provide me with a quick battery boost ad-hoc, but it's pointless as it takes 1hr20 for a full charger(stock at 1000ma takes 40 minutes)
The seller offered me a replacement, but I'm not sure whether to take it incase I wait weeks then find out its the same low-output charger.
This is a popular charger (dx, eBay)-does anyone else own it? Does it work for you at 1.0a?
Can anyone suggest a cheap alternative compact charger?
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So does anyone think I just got a faulty one? I don't know whether to both getting the replacement from the seller...
Sent from my GT-I9305 using Tapatalk 4 Beta

the Anker Astro Slim 3
ycon said:
So does anyone think I just got a faulty one? I don't know whether to both getting the replacement from the seller...
Sent from my GT-I9305 using Tapatalk 4 Beta
Click to expand...
Click to collapse
i dont know if this would work for you or not, but I just ordered the Anker Astro Slim 3 and it has two ports that will charge at 1 Amp each. It is slim enough that i have been able to charge my Galaxy S3 while using the phone and stacking the charger directly behind it. So far, i am very pleased with it. I am attaching a couple of pictures so that you can see it. I am charging my nexus 10 and my nexus S in the picture. Hope this is helpful

Thanks for that!
But I'm after something much more compact.
I'm really surprised this isn't a common thing-having it on my keyring (even if 0.5a) has been incredibly handy.
Any other suggestions?
Sent from my GT-I9305 using Tapatalk 4 Beta

Has anyone got a suggestion for me yet?
I've finally received the one I ordered, and no surprise, despite being advertised as 1a, it charges slooowly at 0.5a.
Size of it was prefect- fit nicely on my keyring and wasn't even bulky
And then after a week, it broke...

I like Anker stuff as well since I reviewed a lot of their products (in my signature link). The problem is that it sound like you are not from US, Australia from your ebay link? That is always an issue because a lot of US companies deal only with a few international amazon. You mentioned DX.com - love their products as well, reviewed a lot of their stuff, always a pleasure to deal with, and they ship to Australia without a problem.
Here is my thought about your 500mA charging. Are you sure its not a cable? Most of today's chargers are 1A-2A (all new Galaxy stuff charges at fast 2A speed) while tablets like Nexus 7 use at least 1A. So it's easy to get 1A charging speed out of most of today's chargers since they all use a common voltage/current regulator chips inside. BUT, you will LIMIT your current with usb cable. A lot of these cheap cables are designed for computers, and a common USB2.0 PC port only outputs 500mA, and cables are made out of thin wire. Thin wire will limit your current, will overheat, and will create other problems. For 2A you need to use USB cable with a thicker wires. So just look around your house for different usb cables to confirm. Usually the OEM cable that comes with your phone will be designed for max charging speed of your phone. I like buying Monoprice cables, but again not sure if they ship overseas.

At DX, look for the HTC One chargers. After lots of frustrating purchases those were the only that I could find that delivered the mentioned current.
I think you may have trouble finding one that fits your country's wall socket.

Have you tried different cables? My S3 draws anything between 0.3 and 1A from my charger depending on the cable I use.