How to make laptop batteries last longer? - Page 3

Mr Lefty · 01-18-2009, 11:36 PM

Quote:

Originally Posted by Gas Man

What about appling the battery "shocking idea" that you can do on cordless tools to the laptop battery?

no idea what you're talk'n about

Gas Man · 01-22-2009, 10:11 PM

http://ysuusy.com/easybatteryfix.html

Mr Lefty · 01-22-2009, 10:39 PM

Quote:

Originally Posted by Gas Man

http://ysuusy.com/easybatteryfix.html

again... he has a LiIon battery... not NiCd

Gas Man · 01-22-2009, 10:51 PM

I'm sorry... sue me... geeeesh

fasternyou929 · 01-22-2009, 11:00 PM

It's because they're made to do that. Inside your battery is a smart charging circuit that decreases the amount of charge the battery will accept over time. This prevents the laptop fires from a few years ago.

I don't have an online reference to point you to, just something a very knowledgable co-worker told me. Seems the solution not only saved Dell a shitload of money on future lawsuits, but they are also making a killing selling replacement batteries now.

Mr Lefty · 01-22-2009, 11:17 PM

Quote:

Originally Posted by Gas Man

I'm sorry... sue me... geeeesh

naw just say'n... I'd never heard about that though...

Gas Man · 01-22-2009, 11:49 PM

Quote:

Originally Posted by ebbs15

naw just say'n... I'd never heard about that though...

Yeah its a cool idea... I want to do it to a spare old set of drill batteries... but have to find 18 volts..

Homeslice · 01-23-2009, 12:53 AM

Quote:

Originally Posted by fasternyou929

It's because they're made to do that. Inside your battery is a smart charging circuit that decreases the amount of charge the battery will accept over time. This prevents the laptop fires from a few years ago.

I don't have an online reference to point you to, just something a very knowledgable co-worker told me. Seems the solution not only saved Dell a shitload of money on future lawsuits, but they are also making a killing selling replacement batteries now.

Wow......fucking gay.

Sucks for them that I never buy direct from the manufacturer, though.

Rsv1000R · 01-23-2009, 08:38 AM

What I've found with phones, is that if you charge them while they are on, they last nowhere near as long as if you charge them while they're off. It wouldn't surprised me that your laptop does the same thing.

Avatard · 01-23-2009, 12:21 PM

A few things:

A) Thanks for the "surge the NiCad" link...I was looking for that info, I had seen it before (actually plans to build a NiCad "zapper", but couldn't find the info again).

B) LiIon batteries SUPPOSEDLY don't have "memory", but seem to benefit from the occasion "deep-cycle" anyway.

C) I don't think having your phone on or off while charging makes that much of a difference, but recently I have discovered a bit of useful info by experience: If your phone IS on while charging, and you take it off when fully recharged, cycle your phone's power before you stick it back in your pocket. Why? Because a phone when first turned on negotiates RF power transmission strength with the tower. If this negotiation is made with the phone plugged in, the RF output will be determined based on line power, and not battery power. Switching to battery will then result in reduced RF output (if the phone doesn't properly dynamically adjust - which it's supposed to do, but often does so with less-than-favorable results). By cycling the power off and on again, you force your cell phone to negotiate RF transmission strength based on available battery power, and it often results in "more bars", and a more stable signal.

01-22-2009, 10:11 PM	#22
Gas Man Trip's Assistant Join Date: Feb 2008 Location: Imported from Detroit Moto: 2009 HD Street Classic Posts: 12,149	http://ysuusy.com/easybatteryfix.html __________________ -Chris "Why pay somebody else to fuck up your bike?" Run Amsoil Product

01-22-2009, 10:51 PM	#24
Gas Man Trip's Assistant Join Date: Feb 2008 Location: Imported from Detroit Moto: 2009 HD Street Classic Posts: 12,149	I'm sorry... sue me... geeeesh __________________ -Chris "Why pay somebody else to fuck up your bike?" Run Amsoil Product

01-23-2009, 12:21 PM	#30
Avatard Crotch Rocket Curmudgeon Join Date: Nov 2008 Location: Here to integrity Moto: Li'l red baby Ninja Posts: 7,482	A few things: A) Thanks for the "surge the NiCad" link...I was looking for that info, I had seen it before (actually plans to build a NiCad "zapper", but couldn't find the info again). B) LiIon batteries SUPPOSEDLY don't have "memory", but seem to benefit from the occasion "deep-cycle" anyway. C) I don't think having your phone on or off while charging makes that much of a difference, but recently I have discovered a bit of useful info by experience: If your phone IS on while charging, and you take it off when fully recharged, cycle your phone's power before you stick it back in your pocket. Why? Because a phone when first turned on negotiates RF power transmission strength with the tower. If this negotiation is made with the phone plugged in, the RF output will be determined based on line power, and not battery power. Switching to battery will then result in reduced RF output (if the phone doesn't properly dynamically adjust - which it's supposed to do, but often does so with less-than-favorable results). By cycling the power off and on again, you force your cell phone to negotiate RF transmission strength based on available battery power, and it often results in "more bars", and a more stable signal. __________________ Insert free thought here. Last edited by Avatard; 01-23-2009 at 12:59 PM..

01-22-2009, 11:00 PM	#25
fasternyou929 SFL Expatriate #2 Join Date: Nov 2008 Location: Raleigh, NC Moto: CBR1000 Posts: 2,043	It's because they're made to do that. Inside your battery is a smart charging circuit that decreases the amount of charge the battery will accept over time. This prevents the laptop fires from a few years ago. I don't have an online reference to point you to, just something a very knowledgable co-worker told me. Seems the solution not only saved Dell a shitload of money on future lawsuits, but they are also making a killing selling replacement batteries now.

01-23-2009, 08:38 AM	#29
Rsv1000R WERA White Plate Join Date: Nov 2008 Posts: 1,059	What I've found with phones, is that if you charge them while they are on, they last nowhere near as long as if you charge them while they're off. It wouldn't surprised me that your laptop does the same thing.