can frequent USB charging damage the battery?

flyingtablet · 06-26-2009, 03:48 PM

I have lots of PDF papers to read and I often find related papers that
I want to upload to Kindle DX.
However, DX does not allow download of PDF through whispernet.
I have to use USB.

But the moment I plug in the USB cable, it starts charging.

I think the battery's lifespan also depends on charging cycle (even
if not complete charging)

Any comments?

pilotbob · 06-26-2009, 04:29 PM

I wouldn't worry about it. You are not going to affect the battery life in any dramatic way. Also, some will tell you what you are doing it BETTER for it, and some will say it is WORSE for it.

BOb

Lilly · 06-26-2009, 04:30 PM

Well the Sony PRS-505 did not come with a power cord, you had to buy it separately. I know we are talking about the Kindle but the only way you could charge the PRS-505 if you did not buy the cord was through USB and that's how I charged mine for the 1st 3 months of ownership with no problems. Also, most readers you have to connect them to a computer to load material by USB so I don't think you should worry. Only the Kindle has Whispernet to load data at the moment, so all other manufactured readers has been doing fine so far, even though they have to be connected to load data and charging while you do so; you actually gaining a benefit of rarely charging when you load content via USB.

KeithH · 06-26-2009, 04:36 PM

I agree: opinions vary. Here's mine:

NiMH likes deep cycle, but lithium likes shallow; i.e. charge frequently to prolong Lithium battery life.

Lithium can handle MANY more shallow charges versus deep, so don't let it run down any lower than necessary.

sirbruce · 06-26-2009, 08:12 PM

No, it does not. Li-Poly is fine with partial charges.

fugazied · 06-27-2009, 01:04 AM

It will be fine, lithium batteries are pretty robust. It's different to most laptop batteries where those batteries do need special management to avoid the battery getting a memory and holding only small amounts of power.

06-26-2009, 03:48 PM	#1
flyingtablet Member Posts: 22 Karma: 11 Join Date: Oct 2008 Device: none	can frequent USB charging damage the battery? I have lots of PDF papers to read and I often find related papers that I want to upload to Kindle DX. However, DX does not allow download of PDF through whispernet. I have to use USB. But the moment I plug in the USB cable, it starts charging. I think the battery's lifespan also depends on charging cycle (even if not complete charging) Any comments?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
How to get frequent news downloads (more frequent than 1x day)	Sydney's Mom	Calibre	6	08-29-2010 11:02 AM
PRS-600 USB Charging	sphinx666	Sony Reader	7	08-16-2010 08:41 PM
Usb charging ?	kinetic	iRex	8	02-11-2010 06:29 PM
PRS 505 Battery. USB charging and all that	billbarrowbush	Introduce Yourself	3	02-05-2009 04:48 PM
Charging via USB?	WilliamG	Amazon Kindle	8	11-22-2007 11:55 AM

06-26-2009, 04:29 PM	#2
pilotbob Grand Sorcerer Posts: 19,832 Karma: 11844413 Join Date: Jan 2007 Location: Tampa, FL USA Device: Kindle Touch	I wouldn't worry about it. You are not going to affect the battery life in any dramatic way. Also, some will tell you what you are doing it BETTER for it, and some will say it is WORSE for it. BOb

06-26-2009, 04:30 PM	#3
Lilly Guru Posts: 688 Karma: 2090 Join Date: Dec 2007 Device: Sony PRS-505, PRS-900 & PRS-950, Amazon Kindle2	Well the Sony PRS-505 did not come with a power cord, you had to buy it separately. I know we are talking about the Kindle but the only way you could charge the PRS-505 if you did not buy the cord was through USB and that's how I charged mine for the 1st 3 months of ownership with no problems. Also, most readers you have to connect them to a computer to load material by USB so I don't think you should worry. Only the Kindle has Whispernet to load data at the moment, so all other manufactured readers has been doing fine so far, even though they have to be connected to load data and charging while you do so; you actually gaining a benefit of rarely charging when you load content via USB.

06-26-2009, 04:36 PM	#4
KeithH New to e-reading Posts: 2 Karma: 10 Join Date: Jun 2009 Device: Kindle? (2? / DX?)	I agree: opinions vary. Here's mine: NiMH likes deep cycle, but lithium likes shallow; i.e. charge frequently to prolong Lithium battery life. Lithium can handle MANY more shallow charges versus deep, so don't let it run down any lower than necessary.

06-26-2009, 08:12 PM	#5
sirbruce Provocateur Posts: 1,859 Karma: 505847 Join Date: Feb 2009 Location: Columbus, OH Device: Kindle Touch, Kindle 2, Kindle DX, iPhone 3GS	No, it does not. Li-Poly is fine with partial charges.

06-27-2009, 01:04 AM	#6
fugazied Wizard Posts: 1,305 Karma: 1958 Join Date: Jan 2009 Device: iPod Touch	It will be fine, lithium batteries are pretty robust. It's different to most laptop batteries where those batteries do need special management to avoid the battery getting a memory and holding only small amounts of power.

Advert

Advert