Leaving battery disconnected when using 240v. OK?

spawn154 · 8th October 2007, 1:45 PM

Is it OK to take out the battery from my Inspiron 6400 laptop when I use it 90% of the time on 240v?

I want to do this in the hope of keeping the batteries life to a maximum. I was under the impression that when using the laptop on 240v the majority of the time, it will diminish the lifespan of the battery even tho it is not being used.

I also heard something about the battery being used somehow in a surge protection circuit (if there is one), and it mght not work if the battery is disconnected.

Feedback please

HeXa · 8th October 2007, 1:48 PM

should be fine.... iirc, storing the batteries in a cool place at 60-80% charge is good for their life... just never store them for long periods fully discharged.

Thought most modern notebooks had decent charging circuits that could handle having the battery inserted for long periods when running on 240VAC. Haven't heard of battery killing problems since the old P3 notebook days.

SLATYE · 8th October 2007, 1:53 PM

Quote:

Originally Posted by spawn154

I also heard something about the battery being used somehow in a surge protection circuit (if there is one), and it mght not work if the battery is disconnected.

Well, if there's a surge then it'll probably make the AC adaptor turn off (or die completely). If you don't have a battery in the laptop, this will also cause the laptop to turn off. If you do have a battery then it'll just run from that.

thebranded · 8th October 2007, 3:52 PM

the UPS the battary provides is convient but so far i've not lost power and had my battary out (touch wood)

I do find if i'm playing games do the like, my lappy gets rather hot, so i take the battay out just to keep it cool

TERRA Operative · 8th October 2007, 4:38 PM

If the battery is a lithium ion (Li-ion) or a lithium polymer (Li-Po) it will have a finite lifetime no matter how much or little you use it. If you stick it in a cupboard for a year it will have degraded due to age the same amount as one that has been properly used over the same period of time.

If it is Ni-Cad (unlikely for a laptop these days) or Ni-Mh (not so common now) storing it with a charge will extend it's lifetime.

sabretooth · 11th October 2007, 11:23 PM

Quote:

Originally Posted by TERRA Operative

If the battery is a lithium ion (Li-ion) or a lithium polymer (Li-Po) it will have a finite lifetime no matter how much or little you use it. If you stick it in a cupboard for a year it will have degraded due to age the same amount as one that has been properly used over the same period of time.

If it is Ni-Cad (unlikely for a laptop these days) or Ni-Mh (not so common now) storing it with a charge will extend it's lifetime.

TERRA is correct. Unless it's prone to overheating, you may as well leave it plugged in.

Dan's Data has a few articles on battery types and their respective lifetimes.

8th October 2007, 1:45 PM	#1
spawn154 Member Join Date: May 2003 Location: Sydney Posts: 287	Leaving battery disconnected when using 240v. OK? Is it OK to take out the battery from my Inspiron 6400 laptop when I use it 90% of the time on 240v? I want to do this in the hope of keeping the batteries life to a maximum. I was under the impression that when using the laptop on 240v the majority of the time, it will diminish the lifespan of the battery even tho it is not being used. I also heard something about the battery being used somehow in a surge protection circuit (if there is one), and it mght not work if the battery is disconnected. Feedback please __________________ Inspiron 6400

8th October 2007, 1:48 PM	#2
HeXa Member Join Date: Jul 2001 Location: Canberra, ACT Posts: 4,816	should be fine.... iirc, storing the batteries in a cool place at 60-80% charge is good for their life... just never store them for long periods fully discharged. Thought most modern notebooks had decent charging circuits that could handle having the battery inserted for long periods when running on 240VAC. Haven't heard of battery killing problems since the old P3 notebook days. __________________ -=ShadowLight =- Australia's Largest FREE Lineage 2 Server run by ex-SuperFly/MDC/iiNet GMs WTS: [ACT] assorted Dell/IBM P3 rackmount servers - 6 pack of beer each WTB: [ACT] decent Socket 939 HSF (pickup)

8th October 2007, 4:38 PM	#5
TERRA Operative Member Join Date: Jul 2005 Location: Niraikanai Posts: 3,883	If the battery is a lithium ion (Li-ion) or a lithium polymer (Li-Po) it will have a finite lifetime no matter how much or little you use it. If you stick it in a cupboard for a year it will have degraded due to age the same amount as one that has been properly used over the same period of time. If it is Ni-Cad (unlikely for a laptop these days) or Ni-Mh (not so common now) storing it with a charge will extend it's lifetime. __________________ Tereno Empireo Rapidmova Reakcii Armeno B3Motorsports.com - JDMLevin.com

8th October 2007, 3:52 PM	#4
thebranded Member Join Date: Nov 2006 Location: Sydney Posts: 1,129	the UPS the battary provides is convient but so far i've not lost power and had my battary out (touch wood) I do find if i'm playing games do the like, my lappy gets rather hot, so i take the battay out just to keep it cool