I received a faulty Tab A (soft brick) which I was able to fix, however it seems to charge very slow. I used 3 different chargers for a Samsung and Xiaomi mobiles and Asus tablet, all around 2-4a, but they all charged at the same rate. It took 5hrs to reach 94%. I left it on flight mode for the last 24hrs and it's only dropped 1% (which is amazing) so I'm sure it's not the battery at fault. If multiple chargers/cables are charging at the same rate and the battery loss is solid I'm guessing it could be the USB port. If not, what else could it be? I don't know the history of this tablet as they just dumped it on me.
Very shallow curve, it should be a lot steeper:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Hello, I own a T585 and I can tell you that this is very picky with loading ports.
I have a multi loader (Easyacc) and the Tab is only with 2.1 Ampere fast charging.
Not with 1.0 not with 2.4 not with more.
Reccomend you to use a similar charger or a original.
I didn't quite understand what you mean. So I have to use a 2.1a charger or original Tab A charger only? I found them in 5v and 12v, both for Tab A, which one is correct?
Related
hey folks,
it's that never ending question i guess
i buyed that nice KIDIGI Dock for my dhd..it looks so pretty in it..and with the "Desk Clock" it adds a nice look to my desk.
so my question is, if its really that bad to keep it in there all the time. what about trickle charging? does usb support this?
i dont wanna damage my battery..
btw: when i get home, my battery is normally about 60% charged..if i put it in the dock whenever its on 60% it shouldnt damage it right? the memory effect can't happen on li-ion batterys compared to ni-cd ones i guess...
any tips?
how do you handle it?
DN41
ah btw: if you wanna have some pictures of the dhd in the dock, it's a pleasure to share them with you!
Li-ion battery does not have memory. They have a limited life time. Normally around 2 years. Whether you charge it or not, does not make a difference.
You can go read the boring details on Wikipedia.
ok thanks...so i think i'm gonna have that great look all the time
btw: this is it
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
DN41
Just a word of warning against buying an in car charger of eBay. I got one free with a phone holder, From here.
I used if for a few days no problem. I did notice that it did get a bit hot but thought that was because of the phone being so powerful.
Driving along the motorway at full speed and bang. The charger exploded. Loads of smoke.
I quickly unplugged what was left of the charger.
After I stopped I plugged in my other charger. But it would not charge. When I got home I plugged it in to the mains and fully charged it. When I got the battery full message I unplugged it but still got the battery full message. Even a hour after.
I use battery life from curvefish. Normally it says good. But then it said over volt. I turned off the phone. Then I got a loop of the following screens.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
this is after a hour of the battery being out. put it in. before i can turn it on it does the above.
I have had the phone for 34 days at this point. So I phoned phones4u who said yes I had it for 34 days but I was still able to exchange and not a repair. So I am lucky to get a new phone. But now am worried about using in car chargers.
not anything of use. just some info.
think i will look for a official samsung in car charger.
oh, and the phone holder was crap too.
Hello guys.
I have a Nexus 7, with a huge problem.
Ever since my little sister took it to Europe (and plugged it into a 220 volt instead of the 110 that we use here in the U.S), it died. Now, I've opened it and checked if the battery was somehow poorly plugged or something, but nothing.
The device will not turn on unless connected to a power source (and even then, not 100% of the time) (both my Macbook and wall work). This is what it looks like:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Is this a battery problem? Or a screen problem?
Also, when I took these pictures, it was the first time I could see the "Google" logo on the screen (although barely)
Any help would be greatly appreciated!
From the look of it you have either a damaged motherboard or screen. The motherboard is probably more likely. Can you check on your charger and see what the input voltage is some chargers can cope with 100-240v. What happens when you turn it on/plug it into a computer does it boot is it recognised by the computer? And lastly is there any possibility it was dropped?
Its possible that doubling the input voltage may have produced a surge in the usb voltage but it would be more likely to just fry your charger.
Sent from my Nexus 7 using xda app-developers app
Hi
I've realised, that sometimes charging of my S5 takes relatively longer.
I've measured the current with cheap USB current-voltage-metter, and I've found out, that depending on the micro-usb cable, the charging rare may varry form 0.3A to 1.3A (in measured case). The original charger is rated 5.3V 2.1A
When nothing connected, the charger gives 5.2V (5.19V).
On connected device, it jumps up in range of 5.25 - 5.4V
My measurements were conducted with 49% phone battery charge.
The results:
On original S5, S2 (and some random cables), the current was about 1.15A
Second "stage" of cables performed with 0.7A
Last "bath" chargerd the phone only with 0.3A
So the Question is:
Is there some cable-detection on the phone site? In the IPhone there is prottection, that will disable charging unless You provide >0.6-0.7A initial charging current (I've tested that).
So I guess there is some similar protection is S5. (Why steps of 0.3A 0.7A 1.15A)?
Do You know how it is performed? Anything more in this topic? Is this just a matter of cable, or maybe there is some resistance measured (over D+ D- wire?)?
The cables:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
The measurements:
Goodday folks, So i have a 910F running stock android 5.0.2 i recently noticed that sometimes my battery charges really slow from 90% till 100% to measure charging current i download an app called battery monitor by 3c. The current seems to be normal however i noticed another weird issue that my phone continues to draw some power from charger even when the battery indicator is full with green led (the draw seems to be going down around 100ma when i took it off) . Im using stock fast charger and cable can anyone else confirm if this is normal or if i have a defective unit? Attaching a picture for reference. Thanks
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
it will draw power to keep the battery at 100%
and it's normal for the charging rate to go down a bit when almost full.
a battery produces more heat while charging when it's almost full, so they need to slow down the charging to reduce the heat production.