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Kindle Fire USB Charging


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Initial post: Nov 15, 2011 4:28:03 PM PST
William says:
The only USB charger that works for me is the one that came with it. Anyone else have that issue?

In reply to an earlier post on Nov 15, 2011 4:52:20 PM PST
http://techcrunch.com/2011/11/15/kindle-fire-gets-torn-down-no-surprises-here/

the battery's charge time assumes an outlet connection for the 1.8 amps it supports; most USB ports and cables don't provide that, so expect a longer charge time on USB

In reply to an earlier post on Nov 16, 2011 2:40:12 PM PST
Mike Bethany says:
It's not a matter of it charging slower. He, and I, notice it does not charge when attached to a USB port using a regular Kindle USB cable. The only way to charge it is by hooking it up to the charger that came with it.

In reply to an earlier post on Nov 16, 2011 2:42:24 PM PST
I left mine (at 96%) connected to a powered USB2 hub last night and it did finish charging. YMMV

Posted on Nov 16, 2011 3:12:01 PM PST
The older Kindle USB chargers are rated at .85A, and the USB port on a PC is rated at .5A. Neither will be able to charge the Fire while it is turned on. They should charge it (slowly) when it is turned off. The charger provided with the Fire is rated at 1.8A, more than double the current capacity - a significant difference.

Posted on Nov 17, 2011 1:20:51 PM PST
smalltaco says:
The Kindle Fire will charge with the micro usb cable on the computer. But it's very very slow. It's maybe 9 hours to fully charge it. Know wonder the data cable wasn't included.

Posted on Nov 17, 2011 1:34:37 PM PST
Bruce, thanks for the explanation. I just wish they had made the Fire USB cable longer.

Posted on Nov 20, 2011 7:36:46 PM PST
Too bad it can't pull a Tesla and charge by Wi-Fi.

Posted on Nov 20, 2011 7:42:22 PM PST
If it does, it gives no indication like when plugged in. And testing it with the usb that I charge my phone with, makes no change in either icon status of battery, or under "device". So, maybe it is a very low current that only charges while off.

Posted on Nov 21, 2011 6:45:55 AM PST
S. Blackmon says:
Doesn't matter if I use the usb that came with the Kindle Fire or my old BlackBerry cord, neither will produce a charge. This is a hassle because the cable is so short and my outlet at work is in the floor.

Any thoughts on how to get it to once again charge via USB (which it did do when I first recieved the Fire)

Posted on Nov 21, 2011 9:24:53 AM PST
Are you turning it off while you're trying to charge it? That might help if not. When running it probably draws more than the .5A that the USB port can provide.

Your best option if you really need a longer cord is to find a charger that can provide the 1.8A at 5V that the Fire charger provides.

Posted on Nov 21, 2011 6:53:52 PM PST
William says:
So I have tried a number of chargers now.

Some charge (Light on Power Switch comes on and battery icon green)
For some just the light on power switch comes on but batter icon is white.
For others nothing.

In all cases my blackberry and Android phones work.

Posted on Nov 22, 2011 7:20:23 AM PST
S. Blackmon says:
I think I figured it out. I completely shut down the device, then plug in the USB cord. Doing this will turn the Fire on, and it will seem to just be in 'mass storage' mode, but in about 5 minutes, the orange charging light finally comes on.

Now if I could figure out how to get my Droid Bionic to charge via USB, I'd be set.

Posted on Nov 23, 2011 12:22:57 PM PST
Plug into USB. When it comes up in drive mode hit disconnect. Push the power button to put the Kindle to sleep. Charging light should come on.

Posted on Nov 23, 2011 1:52:32 PM PST
art says:
When I plug it into my computer, even though the charging light comes on, it gives no indication that it's charging (on the "Device" screen or the little battery icon). The battery percentage did not change at all in the hour or so I had it hooked up - neither increasing nor decreasing. At that rate it'd never charge but at least it wasn't discharging! Didn't try turning it fully off while charging this way though.

Posted on Nov 26, 2011 1:33:35 AM PST
Scottie1576 says:
http://www.tomshardware.com/reviews/amazon-kindle-fire-review,3076-14.html
http://www.tomshardware.com/reviews/amazon-kindle-fire-review,3076-19.html

Charging when you plug into a system takes 2.5x longer than using the microUSB AC adapter. Second, Fire must be in mass storage mode (see second link) in order to charge over USB while connected to a system. The KF can be on and still charge, but it must see this screen http://media.bestofmicro.com/U/W/316040/original/kindlefire_usbtransfer.png. To charge faster, you should set the Fire in mass storage mode then hit the power button to power down the display (display consumes the most power).

GL to all with the Fire.

Posted on Nov 27, 2011 5:49:23 PM PST
my name says:
Mine is charging while it is plugged into my laptop right now. The charging light is on and it has gone from 14% to 15%. It isn't turn off, just the screen is off. I noticed that right after I turn the screen on the battery is doing the charging animation (increasing green bars) for a bit, then it stops and shows the normal static battery image.

Posted on Nov 29, 2011 4:28:47 PM PST
I've had a friend in the US send me one to Australia cos I couldnt wait till July 2012! I didnt even think about the charger and when it arrived yesterday, it of course only had the US charger. If I buy an international adaptor will this work? - I know this sounds like a stupid question but I'm not very tech savvy. Any advice?

In reply to an earlier post on Nov 29, 2011 8:30:34 PM PST
I charged the device in Argentina at it works fine. I only used an adapter the plug.

In reply to an earlier post on Nov 29, 2011 10:45:24 PM PST
Thanks David, I've ordered an adaptor so let's hope it works!

In reply to an earlier post on Nov 30, 2011 1:18:21 AM PST
Last edited by the author on Nov 30, 2011 2:44:05 PM PST
Pushka says:
Yes Kim you just need a USA to Australia adapter. You can buy several from ebay for about $5. And it will charge (slowly) if you connect it via USB/micro USB as well. Voltage will be fine.

In reply to an earlier post on Nov 30, 2011 7:24:06 AM PST
Q says:
Since the US charger is 100-240v, you won't need a charger per se. Rather, you'll need an adapter that has prongs for Australian outlets and fits over the US prongs.

"Charger" implies a an electrical converter, but Kim doesn't need that. Just a way to convert the US prongs into Aussie prongs.

In reply to an earlier post on Nov 30, 2011 7:08:51 PM PST
Thanks all :)) - I have bought an adaptor and the "fire" is charging as we speak.

Posted on Dec 1, 2011 11:39:12 AM PST
D. Nagy says:
Having read all of the above....any USB to Micro USB cord will do, however when you plug them in.....EITHER to your USB on your computer OR into an AC to USB adapter OR Car Cigarette Lighter to USB..... you must allow the kindle to power up FIRST, then, DO NOT TURN IT OFF.... push the power button BRIEFLY to put the kindle into the SLEEP MODE.... you will see the orange charging light come on. It will take longer if you are charging from your computer than if you are using any AC adapter, but, it will charge. The key to all this is KINDLE ON / SCREEN OFF.

Posted on Dec 1, 2011 11:56:38 AM PST
Rev. Otter says:
i didn't have any trouble using my K2 charger (which is a USB-to-microUSB with a plug adapter on the USB end) to charge up my Fire.

in fact, that's all i used for the first few days, until i made outlet space for the KF charger. ;)
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Discussion in:  Kindle forum
Participants:  69
Total posts:  121
Initial post:  Nov 15, 2011
Latest post:  Jun 21, 2014

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