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Thu Dec 13, 2012, 09:24 PM

Too good to be true (Kindle Fire HD 8.9) - or battery/cord problem?

I'm low tech, O.K.? Have only been on a laptop in the past three years, never take it anywhere, use it as a desktop, the dominant habit being to use it with a cord always, never the battery alone, unplugging it when logging off. Got a Kindle Fire HD 8.9 two weeks ago and have used it the same way, plugged in while in use. Half an hour ago, got nothing but a black screen. The tech went through about three minutes of getting me to try again, plugged in, would go away (to ask somebody?), then came back and said she was sending a new charger/cord. I asked what would that be good for if it didn't work on the battery alone either. She said that since I don't have other cords from iPods or anything else to try, it might be that the battery is drained. I said (again; again) that the battery was never used alone and always said it was 100% charged. She went away again, then came back to say she had gotten authorization to replace the whole device.

I don't know any other tablets, nothing before this than the Kindle reader that I had for about a year, but my general impression of the Kindle devices is that there is a clumsiness, sort of a clunkiness in using. This Fire HD 8.9 is very "sleek" as they tag themselves all right, less than 1/4" thick, but this also means that the power button and such are tiny and under the edge, hard to find and push.

Will appreciate any thoughts on any of this. Thanks.

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Reply Too good to be true (Kindle Fire HD 8.9) - or battery/cord problem? (Original post)
UTUSN Dec 2012 OP
UTUSN Dec 2012 #1
RC Dec 2012 #2
UTUSN Dec 2012 #3
RC Dec 2012 #4
ChromeFoundry Dec 2012 #5

Response to UTUSN (Original post)

Thu Dec 13, 2012, 09:34 PM

1. Additional info about battery (non-)use

A technician told me once that using the devices plugged in all the time (when in use) should be varied once in awhile, letting the battery run down to the notification to charge. Also, when things are plugged in when OFF, there is still current passing, right? I do NOT leave it plugged in when OFF.

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Response to UTUSN (Reply #1)

Fri Dec 14, 2012, 12:23 AM

2. You really should leave it plugged in once in a while, when not in use

 

Unless you use the device for long periods at a time. Otherwise the battery could be drained down to almost flat, if you Only use it for short periods at a time, giving no chance for a full recharge. (Nothing is 100% efficient)
I don't know about devices now, but there used to be devices that did not charge when they were in use. They charged only when they were off and plugged in.

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Response to RC (Reply #2)

Fri Dec 14, 2012, 09:52 AM

3. Isn't the draining while unused solved by turning OFF the wifi?

A tech told me that leaving the wifi ON while the thing is OFF would cause it to detect signals from the router and keep trying to connect, therefore spending the battery.

As for "devices that did not charge while in use," this one is charging whenever plugged in.

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Response to UTUSN (Reply #3)

Fri Dec 14, 2012, 10:36 AM

4. Modern electronics are never really 'off'.

 

That On/Off switch usually isn't. It is just a momentary push button that controls (toggles) the state of a simple logic circuit.
Shutting off Blue Tooth or the WiFi helps, but even then parts of the circuit will still be working.
On the crime show, ever notice whomever removing the battery from their cell phone, or someone suggesting doing so, so they couldn't be tracked? That's why. Most cell phones can be turned on remotely. Those circuits always draw power.

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Response to UTUSN (Reply #1)

Sat Dec 15, 2012, 07:16 PM

5. Li-ion batteries are different

than old style NiCad or NiMH. Li-ion do not have a 'memory' and cannot be discharged all the way down or they will never charge again. It is best to leave a Li-ion battery on the charger when you can because they only have a finite number of charge/discharge cycles.

Here is a link if you don't want to take my word on the subject:
http://news.tigerdirect.com/2008/02/08/fact-or-fiction-leaving-your-laptop-plugged-in-all-the-time-will-harm-your-battery/

http://www.howtogeek.com/124715/should-i-leave-my-laptop-plugged-in-all-the-time/


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