Home |
Search |
Today's Posts |
|
Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
Posted to sci.electronics.repair
|
|||
|
|||
Lithium Ion battery discharge
I have a Kindle DX that has twice discharged the battery
completely over night when the device was laid flat on a table. Normally I put the device on a shelf standing upright when it isn't in use and the battery never discharges in that case. It isn't a case of leaving the device "on" because the DX turns itself off after a few minutes, and I don't think that on/off affects the rate of discharge. The DX is an e-paper device that, as I understand it, consumes power only when the pages are written to the screen. Is it conceivable that the position of a Li battery could affect its self discharge rate? |
#2
Posted to sci.electronics.repair
|
|||
|
|||
Lithium Ion battery discharge
On 6/1/2017 1:14 PM, root wrote:
I have a Kindle DX that has twice discharged the battery completely over night when the device was laid flat on a table. It's trying unsuccessfully to talk to the mother ship. -- Jeff-1.0 wa6fwi http://www.foxsmercantile.com --- This email has been checked for viruses by AVG. http://www.avg.com |
#3
Posted to sci.electronics.repair
|
|||
|
|||
Lithium Ion battery discharge
On 01/06/2017 19:14, root wrote:
I have a Kindle DX that has twice discharged the battery completely over night when the device was laid flat on a table. Normally I put the device on a shelf standing upright when it isn't in use and the battery never discharges in that case. It isn't a case of leaving the device "on" because the DX turns itself off after a few minutes, and I don't think that on/off affects the rate of discharge. The DX is an e-paper device that, as I understand it, consumes power only when the pages are written to the screen. Is it conceivable that the position of a Li battery could affect its self discharge rate? What happens if you invert it in both cses of being in the horizontal and vertical overnight situations? |
#4
Posted to sci.electronics.repair
|
|||
|
|||
Lithium Ion battery discharge
Foxs Mercantile wrote:
On 6/1/2017 1:14 PM, root wrote: I have a Kindle DX that has twice discharged the battery completely over night when the device was laid flat on a table. It's trying unsuccessfully to talk to the mother ship. Thanks, but wireless is disabled, and if it were that it would also try when the device is upright. |
#5
Posted to sci.electronics.repair
|
|||
|
|||
Lithium Ion battery discharge
N_Cook wrote:
On 01/06/2017 19:14, root wrote: I have a Kindle DX that has twice discharged the battery completely over night when the device was laid flat on a table. Normally I put the device on a shelf standing upright when it isn't in use and the battery never discharges in that case. It isn't a case of leaving the device "on" because the DX turns itself off after a few minutes, and I don't think that on/off affects the rate of discharge. The DX is an e-paper device that, as I understand it, consumes power only when the pages are written to the screen. Is it conceivable that the position of a Li battery could affect its self discharge rate? What happens if you invert it in both cses of being in the horizontal and vertical overnight situations? I don't understand. I am very reluctant to allow the unit to lie horizontal for fear that it will discharge. After discharge the ordering of the (389) books is all screwed up. It doesn't seem to hurt if the DX lies flat for a short time, but overnight has twice been a killer. I am clutching at straws for an explanation since the only times I have left the DX off the shelf it came up empty the next morning. Google reveals no position sensitive self-discharge. |
#6
Posted to sci.electronics.repair
|
|||
|
|||
Lithium Ion battery discharge
On 01/06/2017 20:32, root wrote:
N_Cook wrote: What happens if you invert it in both cses of being in the horizontal and vertical overnight situations? I don't understand. I am very reluctant to allow the unit to lie horizontal for fear that it will discharge. After discharge the ordering of the (389) books is all screwed up. I would suspect a bug in the whatever it's using to do screen orientation sensing. It should be off in sleep, but they've had other power draining bugs, like the 3G one... |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Opened laptop battery to replace lithium ion cells (Lenovo X61tablet PC) -- Where do I get replacement battery cells? | Home Repair | |||
Opened laptop battery to replace lithium ion cells (Lenovo X61tablet PC) -- Where do I get replacement battery cells? | Electronics Repair | |||
How to make a lithium-ion battery explode... | Electronics Repair | |||
How to revive a LITHIUM Ion BATTERY | Electronics Repair | |||
BLD-3 Lithium Ion Battery Specs Mechanical and Electrical. | Electronics Repair |