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Groups > comp.sys.laptops > #614
| From | BillW50 <BillW50@aol.kom> |
|---|---|
| Newsgroups | comp.sys.laptops |
| Subject | Re: Sony laptop battery |
| Date | 2011-08-25 16:10 -0500 |
| Organization | A noiseless patient Spider |
| Message-ID | <j36dod$po3$1@dont-email.me> (permalink) |
| References | <Xns9E92DA7D8DE45spamretarderw1ldswan@216.196.109.145> <d37d6263-d127-410c-be2c-f949aa42d73b@r19g2000prm.googlegroups.com> <Xns9EBAE01477B77spamretarderw1ldswan@216.196.109.145> <jeradl.4yvis5@no.email.invalid> <cobd57d94dnv9d894bbe55jkkcsqbr7adv@4ax.com> |
On 8/25/2011 3:26 PM, Anthony R. Gold wrote:
> On Sun, 21 Aug 2011 20:47:56 -0500, jeradl wrote:
>
>> Also, there will be internal battery chemical degradation even when it's
>> not in use. The percentage is greater in nickel-based batteries, but
>> there is still some in li-ion. And within li-ion batteries there are
>> "dumb" types, which have no degradation, but will lose capacity; and
>> "smart" types which have some degradation, but only around 5-10%
>> compared to nickel-based 25-30%. Keep that in mind when buying your next
>> laptop batteries.
>
> What are you trying to say? "no degradation, but will lose capacity"? Maybe
> you could define your terms. What can be degraded if not capacity? Are you
> maybe confusing capacity with charge or what?
>
> And why keep anything in mind when buying batteries? Is there any model of
> laptop for which various technologies of battery are available for choosing?
What jeradl is saying is that dumb types knows nothing about the current
state of the battery (Windows is clueless too and thus has to learn by
discharging the battery and recharging). The smart type has supporting
circuits that knows what is actually going on with the battery. So
Windows doesn't have to learn on its own, but reads what the hardware
(smart battery) already knows.
Lithium (Li-Ion) has been used virtually in all laptops for about 12
years now. Li-Ion is said to sport more capacity vs. size and weight vs.
the below.
Ni-MH was used in the 90's and ended in the 90's pretty much.
Ni-Cad was used in laptops in the 80's and part of the 90's. Most
(including myself) feels Ni-MH is better and has far more capacity than
Ni-Cad.
Lead acid was rarely used, but I saw them in the late 80's. They are the
heaviest per capacity, but very forgiving otherwise.
If you know what you are doing, you could use any battery type you want.
Although you have to make a battery that fits and most likely have to
modify the charging circuit to do things differently vs. the original type.
--
Bill
Gateway M465e ('06 era) - Thunderbird v3.0
Centrino Core Duo 1.83G - 2GB - Windows XP SP3
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Re: Sony laptop battery "D@ve Pr1ce" <spamretarder@w1ldswan.plus.com> - 2011-04-01 16:01 -0500
Re: Sony laptop battery jeradl <jeradl.4yvis5@no.email.invalid> - 2011-08-21 20:47 -0500
Re: Sony laptop battery "Anthony R. Gold" <not-for-mail@ahjg.co.uk> - 2011-08-25 21:26 +0100
Re: Sony laptop battery BillW50 <BillW50@aol.kom> - 2011-08-25 16:10 -0500
Re: Sony laptop battery "Anthony R. Gold" <not-for-mail@ahjg.co.uk> - 2011-08-25 23:29 +0100
Re: Sony laptop battery BillW50 <BillW50@aol.kom> - 2011-08-25 18:34 -0500
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