laptop battery charging question

black olive · 6th February 2008, 20:05

when running the laptop from the mains power supply the screen is brighter than running on the battery.

when the laptop battery has been run down, and is running from AC, the battery charges and the screen is bright up to 81% ( on the control panel power meter) the unit then appears to switch over to battery power with the result that the screen dims.
if you pull te powe plug and reinsert it the screen brightens again for about a minute until the battery reaches this threshold again.

as you can imagine this gets annoying and makes the screen hard to view.
is there a setting to change this, or is the battery maybe on its way out.
any suggestions please

BMC123 · 6th February 2008, 20:12

depending on the model, have a look in the control panel under power settings, you should find something in there...

black olive · 6th February 2008, 20:31

thanks Ive tried that- it only gives options for screensaver/shutdown etc, unless screensaver is the dim option- ill go back in and play

brownie21 · 6th February 2008, 21:22

Quote:

Originally Posted by black olive

when running the laptop from the mains power supply the screen is brighter than running on the battery.

when the laptop battery has been run down, and is running from AC, the battery charges and the screen is bright up to 81% ( on the control panel power meter) the unit then appears to switch over to battery power with the result that the screen dims.
if you pull te powe plug and reinsert it the screen brightens again for about a minute until the battery reaches this threshold again.

as you can imagine this gets annoying and makes the screen hard to view.
is there a setting to change this, or is the battery maybe on its way out.
any suggestions please

It's your battery. Best to use the mains when possible. Laptop batteries (even modern ones) don't last long in any case and are only meant to be used when travelling.

pmessling · 6th February 2008, 22:40

it does the same on my fujitsu siemens laptop, its a power saving feature as the brighter the screen the more power it will use when using battery. it can still be adjusted using the brightness function key, do you have such key to play with

BMC123 · 7th February 2008, 00:42

One simple thing to do then. When the battery is fully charged, take it out and just run on mains.

eddybrown · 7th February 2008, 08:18

The option should be in the power options in the control panel I think

6th February 2008, 20:05	#1
black olive I really should get out more....... 260 SE vin 214 ( last mark 1 260 ) Join Date: Dec 2006 Location: Lancashire Posts: 2,009 Thanks: 1 Thanked 8 Times in 4 Posts	laptop battery charging question when running the laptop from the mains power supply the screen is brighter than running on the battery. when the laptop battery has been run down, and is running from AC, the battery charges and the screen is bright up to 81% ( on the control panel power meter) the unit then appears to switch over to battery power with the result that the screen dims. if you pull te powe plug and reinsert it the screen brightens again for about a minute until the battery reaches this threshold again. as you can imagine this gets annoying and makes the screen hard to view. is there a setting to change this, or is the battery maybe on its way out. any suggestions please __________________ [SIGPIC][/SIGPIC]

6th February 2008, 20:12	#2
BMC123 Posted a thing or two 2004 1.8 Connoisseur SE, 1999 XJ8 Join Date: Nov 2006 Location: Northern Ireland Posts: 1,163 Thanks: 0 Thanked 1 Time in 1 Post	depending on the model, have a look in the control panel under power settings, you should find something in there... __________________ [SIGPIC][/SIGPIC]

6th February 2008, 20:31	#3
black olive I really should get out more....... 260 SE vin 214 ( last mark 1 260 ) Join Date: Dec 2006 Location: Lancashire Posts: 2,009 Thanks: 1 Thanked 8 Times in 4 Posts	thanks Ive tried that- it only gives options for screensaver/shutdown etc, unless screensaver is the dim option- ill go back in and play __________________ [SIGPIC][/SIGPIC]

6th February 2008, 22:40	#5
pmessling Posted a thing or two TVR Join Date: Dec 2006 Location: West london Posts: 1,084 Thanks: 0 Thanked 0 Times in 0 Posts	it does the same on my fujitsu siemens laptop, its a power saving feature as the brighter the screen the more power it will use when using battery. it can still be adjusted using the brightness function key, do you have such key to play with __________________ Peter Essling Project carbon fibre well under way http://i100.photobucket.com/albums/m.../Logo_260s.gif http://i100.photobucket.com/albums/m...ner468x60b.gif

7th February 2008, 00:42	#6
BMC123 Posted a thing or two 2004 1.8 Connoisseur SE, 1999 XJ8 Join Date: Nov 2006 Location: Northern Ireland Posts: 1,163 Thanks: 0 Thanked 1 Time in 1 Post	One simple thing to do then. When the battery is fully charged, take it out and just run on mains. __________________ [SIGPIC][/SIGPIC]

7th February 2008, 08:18	#7
eddybrown Gets stuck in Rover 75 Club CDT & 73' MG Midget Join Date: Dec 2007 Location: Peterborough Posts: 543 Thanks: 0 Thanked 1 Time in 1 Post	The option should be in the power options in the control panel I think