Laptop Battery Life

[Carruth, Rusty]

Warning - what you are about to read is from the "king of rechargeable
battery killers", so take it with a few metric tons of salt!

 

I have recently been told that, for newer-technology batteries:

 

1 - you do not want to overcharge them - a sure killer

2 - charging to 100% all the time risks overcharging.  Charge to 90-98%
instead.

3 - discharging to some point below 20% reduces battery life, avoid it.
(I'm not sure what the lower bound is)

 

However, I have also been told:

 

A - always fully a discharge new battery and recharge fully 3 times
before use - this is supposed to make batteries more prepared or
something.

Vs

B - never fully discharge a battery.

 

Do we have anyone who works in the battery industry who can give us some
real insight?

 

Rusty

From: plug-discuss-bounces at lists.plug.phoenix.az.us
[mailto:plug-discuss-bounces at lists.plug.phoenix.az.us] On Behalf Of
keith smith
Sent: Monday, July 23, 2012 9:05 AM
To: Main PLUG discussion list
Subject: Re: Laptop Battery Life

 


That would make sense.  I still do not understand why my cellular
battery lasted over 4 years and was still viable when retired.  I had
much less from laptop batteries. 

------------------------
Keith Smith

--- On Sun, 7/22/12, Michael Havens <bmike1 at gmail.com> wrote:


From: Michael Havens <bmike1 at gmail.com>
Subject: Re: Laptop Battery Life
To: "Main PLUG discussion list" <plug-discuss at lists.plug.phoenix.az.us>
Date: Sunday, July 22, 2012, 10:18 AM

I think it would because a rechargeable  has a maximum amount of charge
time on it. at least that is the way it USED to be!

On Sun, Jul 22, 2012 at 9:12 AM, keith smith <klsmith2020 at yahoo.com>
wrote:


Sometime ago we discussed laptop battery life.  I asked the question
about leaving the battery out and if that would extend the life of the
battery.  I'm not sure that option was explored.

Last December I took the battery out of my two lap tops.  I use both
daily for about 15 or 16 continuous hours.

I have been thinking the batteries might be fully drained by now.  Much
to my surprise the newer laptop's battery was at 81% and the older
laptop's battery was at 58%.

Both are taking a charge.  After they are fully charged I will put them
back in my desk drawer and charge them again in 3 to 6 months.

I've have had poor performance from laptop batteries and did not want to
"cook" these.  It will be interesting to see if this extends the life of
the battery.

Any thoughts?

------------------------
Keith Smith


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-- 
:-)~MIKE~(-:


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