Use of the battery in a laptop?

Hi,

To keep the battery for a longer life what is the best:

1. using the mainpower : removing the battery and performing regularly a
decharging and recharging?
2. using the mainpower : keeping the battery into the PC and performing
regularly a decharging and recharging?
3. only working with the battery and of course performing the charging when
needed?

Regards
Huib

This depends on the battery technology used in the device. Most newer
batteries are Lithium-Ion type batteries which don't suffer from normal
"memory" issues but do lose capacity if overheated or charged at too high a
voltage. I personally would check the owner's manual that came with the
device as most do have usage/charging advice.

"Huib" <> wrote in message
news:4a74042f$0$2859$...
> Hi,
>
> To keep the battery for a longer life what is the best:
>
> 1. using the mainpower : removing the battery and performing regularly a
> decharging and recharging?
> 2. using the mainpower : keeping the battery into the PC and performing
> regularly a decharging and recharging?
> 3. only working with the battery and of course performing the charging
> when needed?
>
> Regards
> Huib

Hi,
Thanks for the reply.
I am using a Li-Ion battery (HP-laptop) and the documentation says
decharging and recharging regularly but this is not for a longer live of the
battery but only for a correcter indication of status of the battery on the
PC.
I did use the battery constantly in together with the mainpower bur after
1,5 year i can only 1 minutes on the battery alone.
From their my question what is the best general use of a battery in a
laptop.

Can overheating take place when battery is in the PC and mainpower
constantly used?
Charged to high is suppose will be under control?

Regards
Huib

"Richard G. Harper" <> schreef in bericht
news:0B507BAF-A6B2-48D0-8E1F-...
>
> This depends on the battery technology used in the device. Most newer
> batteries are Lithium-Ion type batteries which don't suffer from normal
> "memory" issues but do lose capacity if overheated or charged at too high
> a voltage. I personally would check the owner's manual that came with the
> device as most do have usage/charging advice.
>
> "Huib" <> wrote in message
> news:4a74042f$0$2859$...
>> Hi,
>>
>> To keep the battery for a longer life what is the best:
>>
>> 1. using the mainpower : removing the battery and performing regularly a
>> decharging and recharging?
>> 2. using the mainpower : keeping the battery into the PC and performing
>> regularly a decharging and recharging?
>> 3. only working with the battery and of course performing the charging
>> when needed?
>>
>> Regards
>> Huib
>

Hi,

On laptop Li-Ion batteries: http://batteryuniversity.com/parttwo-34.htm

> I did use the battery constantly in together with the mainpower bur after
> 1,5 year i can only 1 minutes on the battery alone.

Then it's dead and needs to be replaced.

> Can overheating take place when battery is in the PC and mainpower
> constantly used?

Certainly. A laptop can get very hot under normal use. This is why laptop
coolers are so prevalent and sell well.

> Charged to high is suppose will be under control?

It's not the charging components so much as the battery's response to heat
that kills it.

--
Best of Luck,

Rick Rogers, aka "Nutcase" - Microsoft MVP
http://mvp.support.microsoft.com/
Windows help - www.rickrogers.org
Vote for my shoe: http://rick-mvp.blogspot.com

"Huib" <> wrote in message
news:4a740edd$0$2864$...
> Hi,
> Thanks for the reply.
> I am using a Li-Ion battery (HP-laptop) and the documentation says
> decharging and recharging regularly but this is not for a longer live of
> the battery but only for a correcter indication of status of the battery
> on the PC.
> I did use the battery constantly in together with the mainpower bur after
> 1,5 year i can only 1 minutes on the battery alone.
> From their my question what is the best general use of a battery in a
> laptop.
>
> Can overheating take place when battery is in the PC and mainpower
> constantly used?
> Charged to high is suppose will be under control?
>
> Regards
> Huib
>
> "Richard G. Harper" <> schreef in bericht
> news:0B507BAF-A6B2-48D0-8E1F-...
>>
>> This depends on the battery technology used in the device. Most newer
>> batteries are Lithium-Ion type batteries which don't suffer from normal
>> "memory" issues but do lose capacity if overheated or charged at too high
>> a voltage. I personally would check the owner's manual that came with
>> the device as most do have usage/charging advice.
>>
>> "Huib" <> wrote in message
>> news:4a74042f$0$2859$...
>>> Hi,
>>>
>>> To keep the battery for a longer life what is the best:
>>>
>>> 1. using the mainpower : removing the battery and performing regularly a
>>> decharging and recharging?
>>> 2. using the mainpower : keeping the battery into the PC and performing
>>> regularly a decharging and recharging?
>>> 3. only working with the battery and of course performing the charging
>>> when needed?
>>>
>>> Regards
>>> Huib
>>
>
>
>

LI batteries are better in most ways than the Ni Cad batteries.
However-- discharging beyond about 80% can reduce capacity, or "kill" the
battery.
Overcharging or too rapid discharge can damage the battery, or even cause a
fire. Some batteries have circuitry inside the battery case that is intended
to reduce the chances of overcharging, over discharging and high discharge
rates or % of capacity.
Full capacity "may" be regained by going through a charge/discharge cycle,
usually thought to be 3 to 5 cycles.
Apple currently has a bit of a problem with iPods and the LI batteries.
(~800 documented problems/complaints, at least that's what the Feds seem to
be saying)
I really hope that the "A123" type makes it into laptop use. Currently, it
seems to be going into power tools, and under priority development for
electric vehicles.

The real problem with laptops and batteries boils down to an unrealistic use
time rating.
If this isn't bad enough, part of the charge circuitry is in the battery,
and the rest in the laptop.
This supposedly allow the battery mfr greater control of the
charge/discharge process.
However, the battery mfr also has a vested interest in supplying replacement
batteries.

I use LI Po batteries for RC electric powered aircraft, and have a fairly
complex and programmable battery charger/balancer/cycler.
(Ni Cad, Li, Li-Po, Lead Acid, and A123 batteries.)
I recently used this unit to recover a laptop battery that was unchargable
using an Acer "netbook". Seems the problem is known, and peculiar to one
battery maker.
The netbook battery was usable after recovery, but had a reduced capacity.
Since it was under warrenty, it was replaced.

"Richard G. Harper" <> wrote in message
news:0B507BAF-A6B2-48D0-8E1F-...
> This depends on the battery technology used in the device. Most newer
> batteries are Lithium-Ion type batteries which don't suffer from normal
> "memory" issues but do lose capacity if overheated or charged at too high
> a voltage. I personally would check the owner's manual that came with the
> device as most do have usage/charging advice.
>
> "Huib" <> wrote in message
> news:4a74042f$0$2859$...
>> Hi,
>>
>> To keep the battery for a longer life what is the best:
>>
>> 1. using the mainpower : removing the battery and performing regularly a
>> decharging and recharging?
>> 2. using the mainpower : keeping the battery into the PC and performing
>> regularly a decharging and recharging?
>> 3. only working with the battery and of course performing the charging
>> when needed?
>>
>> Regards
>> Huib
>

Hi, Roger & Chuck
Thanks both for the technical details and the clear information.

I can indicate in my Vista (HP DV9285ea) when an indication is required at a
certain level but i have no means to controle the charging level.
So in my case is the best to remove the battery (only working on the
mainpower and regular e.g. once / per month checking of the charging level
is between 40% - 80%.

Sorry Roger to mention it also into the other forum, but battery is HW and
not Vista related so i played on two horses ...but you are wright.

Regards
Huib

"Huib" <> schreef in bericht
news:4a740edd$0$2864$...
> Hi,
> Thanks for the reply.
> I am using a Li-Ion battery (HP-laptop) and the documentation says
> decharging and recharging regularly but this is not for a longer live of
> the battery but only for a correcter indication of status of the battery
> on the PC.
> I did use the battery constantly in together with the mainpower bur after
> 1,5 year i can only 1 minutes on the battery alone.
> From their my question what is the best general use of a battery in a
> laptop.
>
> Can overheating take place when battery is in the PC and mainpower
> constantly used?
> Charged to high is suppose will be under control?
>
> Regards
> Huib
>
> "Richard G. Harper" <> schreef in bericht
> news:0B507BAF-A6B2-48D0-8E1F-...
>>
>> This depends on the battery technology used in the device. Most newer
>> batteries are Lithium-Ion type batteries which don't suffer from normal
>> "memory" issues but do lose capacity if overheated or charged at too high
>> a voltage. I personally would check the owner's manual that came with
>> the device as most do have usage/charging advice.
>>
>> "Huib" <> wrote in message
>> news:4a74042f$0$2859$...
>>> Hi,
>>>
>>> To keep the battery for a longer life what is the best:
>>>
>>> 1. using the mainpower : removing the battery and performing regularly a
>>> decharging and recharging?
>>> 2. using the mainpower : keeping the battery into the PC and performing
>>> regularly a decharging and recharging?
>>> 3. only working with the battery and of course performing the charging
>>> when needed?
>>>
>>> Regards
>>> Huib
>>
>
>
>

Huib wrote:
> Hi,
>
> To keep the battery for a longer life what is the best:
>
> 1. using the mainpower : removing the battery and performing regularly a
> decharging and recharging?
> 2. using the mainpower : keeping the battery into the PC and performing
> regularly a decharging and recharging?
> 3. only working with the battery and of course performing the charging
> when needed?
>
> Regards
> Huib

I have a 4-year-old Dell laptop that still works with its original
battery pack. Other than removing the battery when I don't plan on using
the unit for a month or two, I have not paid much attention to the
charge/discharge status of the battery.

Obviously the battery is shot if you only get a minute's use out of it.
How old is this laptop?

Bill

"Bill Sharpe" <> schreef in bericht
news:...
>
> Huib wrote:
>> Hi,
>>
>> To keep the battery for a longer life what is the best:
>>
>> 1. using the mainpower : removing the battery and performing regularly a
>> decharging and recharging?
>> 2. using the mainpower : keeping the battery into the PC and performing
>> regularly a decharging and recharging?
>> 3. only working with the battery and of course performing the charging
>> when needed?
>>
>> Regards
>> Huib
>
> I have a 4-year-old Dell laptop that still works with its original battery
> pack. Other than removing the battery when I don't plan on using the unit
> for a month or two, I have not paid much attention to the charge/discharge
> status of the battery.
>
> Obviously the battery is shot if you only get a minute's use out of it.
> How old is this laptop?
>
> Bill
Hi,
Only 2 years, i am daily using my PC using the mainpower with the battery
always 100% loaded.
I recently dedected the problem after i forgot to connect the mainpower and
the battery when already after 1 minute to 10%.
I am intended to bye a new battery but i want first to some technical
details which i did receive on the forum with thanks to all.
regards
Huib

"Huib" <> wrote in message
news:4a74705e$0$2862$...
>
> "Bill Sharpe" <> schreef in bericht
> news:...
>>
>> Huib wrote:
>>> Hi,
>>>
>>> To keep the battery for a longer life what is the best:
>>>
>>> 1. using the mainpower : removing the battery and performing regularly a
>>> decharging and recharging?
>>> 2. using the mainpower : keeping the battery into the PC and performing
>>> regularly a decharging and recharging?
>>> 3. only working with the battery and of course performing the charging
>>> when needed?
>>>
>>> Regards
>>> Huib
>>
>> I have a 4-year-old Dell laptop that still works with its original
>> battery pack. Other than removing the battery when I don't plan on using
>> the unit for a month or two, I have not paid much attention to the
>> charge/discharge status of the battery.
>>
>> Obviously the battery is shot if you only get a minute's use out of it.
>> How old is this laptop?
>>
>> Bill
> Hi,
> Only 2 years, i am daily using my PC using the mainpower with the battery
> always 100% loaded.
> I recently dedected the problem after i forgot to connect the mainpower
> and the battery when already after 1 minute to 10%.
> I am intended to bye a new battery but i want first to some technical
> details which i did receive on the forum with thanks to all.
> regards
> Huib

When I purchased a new battery for an old Dell Inspiron 5150 the
instructions stated to only charge the battery when it was almost dead and
to charge it till it's fully charged. Also, if you use your laptop mostly on
AC power, to take the battery out. This isn't an observation from me. It's
directly from the battery manufacturer. Some batteries can be revived using
this procedure. Run it till it's dead, then give it a full charge. This
may have to be done multiple times. In your case, though, "it's dead, Jim!"

On Sat, 1 Aug 2009 11:00:27 +0200, "Huib"
<> wrote:

>Hi,
>
>To keep the battery for a longer life what is the best:
>
>1. using the mainpower : removing the battery and performing regularly a
>decharging and recharging?
>2. using the mainpower : keeping the battery into the PC and performing
>regularly a decharging and recharging?
>3. only working with the battery and of course performing the charging when
>needed?
>
>Regards
>Huib

For best battery life, leave it out of the laptop 40% charged and only
charge it when you need to use it.

Unfortunately for most of us, that's an inconvenient way to work and
if there's a power failure you crash.