i just got a New Trent IMP1000 external charging battery that chargers anything with a USB but when i connected the samsung wire that came with my Galaxy Nexus into the New Trent it charged really really slow compared to putting the wire into the samsung block that goes into the wall.. I thought the problem was with the New Trent since it is only an external battery charger but when i used the USB they provided (which i thought was crap) it charged literally 100x faster than the official samsung usb wire into the New Trent.. WHY!? why does the New Trent USB Wire charge faster than the Samsung USB into the New Trent but they charge at the same rate if the Samsung USB wire is plugged into the Samsung wall block. i know this post sounds confusing but if you get it im just wondering why lol
With the Samsung USB wire you will probably only get your phone to charge with USB amps (check in About phone/Status). The other cable is probably wired to tell the phone it's a wall charger and thus will give you more amps.
If your phone says Charging (USB) you are limited to 500mA charging current, and if your phone says Charging (AC) it is limited to 1000mA current.
Related
I am considering buying this usb charging adapter cable to help speed up my charging rate at work where I don't have an AC adapter and my work computer's usb ports are conveniently placed. From what I have read, normal usb charging maxes out at 500ma, but can be increased if your usb port has more juice if you short the data wires, which will tell the phone to grab more power because it thinks it is plugged into an AC adapter.
I have found this adapter http://www.dealextreme.com/p/usb-data-charging-extension-cable-for-samsung-p1000-black-91141
it is meant for a galaxy tab, but From what I see is that it has a switch that either allows data / slow charge or allows quick charging. I have purchased a few of these already because I'm assuming it will still work with my galaxy s2.
I'll let everyone know how it goes, but does anybody see a problem with this or think I'm going to fry my phone for any reason?
Thanks.
very interesting, heck it's only $3 bucks, might as well just buy it and find out
yes, charging via USB port sucks, it's too slow at 500 mAh
if that does the magic trick, by shorting it and making it believe it's an AC then it'll be nice, and it can pull around 1000 mAh off the USB port (depending on your computer mainboard)
Id be curious to see if this actually works but i see no fault in trying it
cbutters said:
I am considering buying this usb charging adapter cable to help speed up my charging rate at work where I don't have an AC adapter and my work computer's usb ports are conveniently placed. From what I have read, normal usb charging maxes out at 500ma, but can be increased if your usb port has more juice if you short the data wires, which will tell the phone to grab more power because it thinks it is plugged into an AC adapter.
I have found this adapter http://www.dealextreme.com/p/usb-data-charging-extension-cable-for-samsung-p1000-black-91141
it is meant for a galaxy tab, but From what I see is that it has a switch that either allows data / slow charge or allows quick charging. I have purchased a few of these already because I'm assuming it will still work with my galaxy s2.
I'll let everyone know how it goes, but does anybody see a problem with this or think I'm going to fry my phone for any reason?
Thanks.
Click to expand...
Click to collapse
Only the Galaxy Tablets have this limitation (they cannot be charged at all via computer usb only via their "special" wall adapter) so the adapter won't do anything for a phone. The adapter works on the tablet because what the adapter is doing is shorting 2 pins on the USB cable to fool the TABLET into thinking it is on the AC adapter "specially made" for it.
As long as you plug the phone it into a self-powered usb port (ie: a hub with a power brick) you will get max current the phone allows. The adapter will make no difference on the phone because the phone CAN charge off the PC port while the tablet cannot. It won't hurt the phone but it won't help it either.
MisterEdF said:
The adapter will make no difference on the phone because the phone CAN charge off the PC port while the tablet cannot. It won't hurt the phone but it won't help it either.
Click to expand...
Click to collapse
Thanks for the info on the galaxy tab, however I disagree with you in your opinion that an adapter that shorts the data wires will not help the phone to charge quicker.
It seems either the devices or android system itself limits charging to 500ma so it does not damage the computer, the phone itself knows that it is connected via usb, and will state "Charging: USB Plugged"
If you let the phone think it is connected to an AC adapter, it will allow the battery to accept whatever amperage you throw at it, and you will see that the system states "Charging: AC Plugged"
Obviously there are two modes of charging going on here.
See this thread:
see here:
http://forum.xda-developers.com/showthread.php?t=844284
Has anyone tried this yet?
I have found that using the Galaxy Tab chargers works the same way. They have a 2amp output vs the .5 amps that most blackberry chargers and USB use... It shortens the charge time significantly.
TMO SGS2, Darkside 3v8, Kernel Venom 3#5, UVLC8
Charger considerations
Hi,
I need advise for the following:
Charger A (Li-polymer battery) output : 5V, 1A
Charger B (Li-polymer battery) output : 5V, 500mA
Device input: 5V, 750mAH (Li-ion / Li-polymer)
When using Charger A, some people comment that it will limit the current of 750mAH for the device and the device's battery should be fine since both the charger and device are at 5V. However, some people comment that this will shorten the battery life of the device since it will perform a 'quick charge' using 1A.
When using Charger B, some people comment that the device will draw more current than it can deliver and causes it to heat up and reduces the charger's life. However, some people comment that Charger B will extend the battery life of the device since it performs a 'slow charge'.
I also read that USB pins on the charger denotes if the charger is a PC or a dedicated charger. If it is a PC, the device will limit the drawing current. If it is a dedicated charger, the device will draw more current to charge itself.
I am confused as to who is right and which charger should i be using.
Can someone enlighten me ?
Thank you very much.
Guys, I have my normal charger at home which works fine. Here at work I have a fairly new (but cheap) USB cable. At work the charge never goes up, it stays at the same percentage all day. It charged my Optimus 3D fine.
If I swap it for a colleagues USB cable (came with his Windows Phone) it charges fine (same USB port or USB ac adapter).
Is there a certain type of Micro USB cable I should be looking for that's not stupidly priced? (in the UK)
Coming from an Iphone I didn't have any spare micro USB cables so I went to a computer store and bought 3 store brand (cheap) microUSB cables and they all work fine.
The only thing to take note of is some wall charges are seen by the phone as "USB" and not "AC Charger" and thus will only pull in 500mah which is pretty slow. If you install battery monitor widget by 3C it will tell you the amperage coming in and if the phone sees your connection as USB or AC.
I discovered my 1amp apple USB brick does not charge higher than 500mah only my samsung one does that came with the phone.
sluflyer06 said:
Coming from an Iphone I didn't have any spare micro USB cables so I went to a computer store and bought 3 store brand (cheap) microUSB cables and they all work fine.
The only thing to take note of is some wall charges are seen by the phone as "USB" and not "AC Charger" and thus will only pull in 500mah which is pretty slow. If you install battery monitor widget by 3C it will tell you the amperage coming in and if the phone sees your connection as USB or AC.
I discovered my 1amp apple USB brick does not charge higher than 500mah only my samsung one does that came with the phone.
Click to expand...
Click to collapse
yeah, but if I use the same USB port or the same AC plug I don't understand why 1 cable will charge fine, the other gives just enough to keep it at the same percentage all day?
I bought an OEM Samsung wall charger that charges at 1 Ampere. I started to charge my Zerolemon battery with it yesterday at about 6pm and here it is today and it is only at about 80% charge rate. Something is not right. I contacted the seller and they told me that the charger is from Samsung and it charges at 1 Ampere. It is either the charger is a knock off or my Micro-usb cable that connects into the wall charger is not the right kind.
Are there different variations of micro-usb cables that will work better? Some that allow more current to flow over them than others? My cable says that it is 28awg/2C. I remember when I had a playstation 3 I had problems with syncing the device with my playstation 3 with the USB cables I had bought. After tons of research it was the USB cables that were the issue. They didn't allow enough current to work properly with the PS3. I'm starting to wonder if I'm having the same issue with the Samsung Wall Charger. Is the 28awg wire gauge too thin?
---->[email protected]<---- said:
I bought an OEM Samsung wall charger that charges at 1 Ampere. I started to charge my Zerolemon battery with it yesterday at about 6pm and here it is today and it is only at about 80% charge rate. Something is not right. I contacted the seller and they told me that the charger is from Samsung and it charges at 1 Ampere. It is either the charger is a knock off or my Micro-usb cable that connects into the wall charger is not the right kind.
Are there different variations of micro-usb cables that will work better? Some that allow more current to flow over them than others? My cable says that it is 28awg/2C. I remember when I had a playstation 3 I had problems with syncing the device with my playstation 3 with the USB cables I had bought. After tons of research it was the USB cables that were the issue. They didn't allow enough current to work properly with the PS3. I'm starting to wonder if I'm having the same issue with the Samsung Wall Charger. Is the 28awg wire gauge too thin?
Click to expand...
Click to collapse
- charger is rated 1amp but usually puts out less depending on the quality and efficiency of it. You won't get the fastest charge with a 1amp psu. Get yourself a cheap 2amp and have plenty of headroom.
- also, if voltage in your wall outlet is low (rare) that would affect psu output.
- yes super thin usb cables can be part of the cause.
- of course, if the cable is meant for PC charging, it will be wired in such a way, to not exceed 450ma (or so) whereas a usb cable or charger that is meant and wired for fast charge, will provide...for me...1150ma (Search/Research my past posts for more detailed info)
- also, most kernels, slow down the charge rate as the batter gets closer to 100% charge.
- a bad battery or custom kernel with bad code, could both affect charging speed.
Hi,
I'm in deep sh*t, I lost a part of my luggage, where all the chargers for my phones and my laptop and the data cable for my SGS2...
In order to save on buying both a charger and a data cable (as on SGS2, they are separate), I'd like to ask, whether I could buy an
SGS4 charger ? Would it not do any harm to my batter on the long haul ? I know that the SGS4 charger is made of a USB data cable,
which is then plugged just in a socket connector...
Thanks!
darkman088 said:
Hi,
I'm in deep sh*t, I lost a part of my luggage, where all the chargers for my phones and my laptop and the data cable for my SGS2...
In order to save on buying both a charger and a data cable (as on SGS2, they are separate), I'd like to ask, whether I could buy an
SGS4 charger ? Would it not do any harm to my batter on the long haul ? I know that the SGS4 charger is made of a USB data cable,
which is then plugged just in a socket connector...
Thanks!
Click to expand...
Click to collapse
my understanding is that so long as the output voltage is the same (5.0V) and the max output current on the charger is rated 0.7A (or above), you should be in good shape. I even occasionally use my ipad usb charger + usb data cable to charge my s2.
Yea most USB chargers should be fine. Heck, I'm using a $7 generic one I got from a local store because mine always break and it works fine.
I agree with Bigtonyman, using most microUSB charger is fine. Only output voltage must be 5V
I am charging daily my SII with: original charger 700mA (home), Nokia charger 950mA (parents) and occasionaly with china car lighter charger 1000mA, and from computer USB port.
I have my original battery 1,5 year old, and the battery time is similar to when it was new.
Hey guys !
I just bought an Galaxy Tab S (8.4) from eBay but it came without any charger/cable.
As it is a Micro USB port, there's no real problem, I have literally tons of usb chargers available.
The problem is that most the chargers/cable I used only charged the battery at a 0.3A rate (measured with an USB voltmeter + battery app).
I know that the original charger was 5.3v 2A. I tried with some powerful 5.0v charger (3.0A/Quickcharger 3.0 compatible from Anker) but no luck so far...
Is there a specific charger/specs know to work well with this pad ?
I'm using this aukey 3.0 compatible wall charger and so far it's charging as expected
How fast does it charge ? I only get 0.3A with this charger, which charges really slow...
0.3A is 300ma i am surprised the battery charges at all at that low rate, My 10.5" draws 1700ma from my third-party chargers according to my usb monitor, I have managed to charge it as low as 1000ma from my notebooks usb port, but you need a charge only cable as a data cable will not charge at all.
John.