16 hours !?

When getting a new phone from e2save yesterday they reminded me - i must
charge it for 16 hours before first use!
is this some kind of old wives tale? - playing safe?
i've never heard such a thing before -and the phone manual clearly says a
full charge can take up to 2 and a half.....



--
Gareth.
A french man who wanted a castle threw his cat into a pond.
http://www.audioscrobbler.com/user/dsbmusic/

---

› See More: 16 hours !?

the dog from that film you saw explained :
> When getting a new phone from e2save yesterday they reminded me - i must
> charge it for 16 hours before first use!
> is this some kind of old wives tale? - playing safe?
> i've never heard such a thing before -and the phone manual clearly says a
> full charge can take up to 2 and a half.....

You've /never/ heard this before?

I thought it was common knowledge!

On Sat, 30 Dec 2006 10:19:46 GMT, Jono <[email protected]>
wrote:

>the dog from that film you saw explained :
>> When getting a new phone from e2save yesterday they reminded me - i must
>> charge it for 16 hours before first use!
>> is this some kind of old wives tale? - playing safe?
>> i've never heard such a thing before -and the phone manual clearly says a
>> full charge can take up to 2 and a half.....
>
>You've /never/ heard this before?
>
>I thought it was common knowledge!

Batteries have changed somewhat over the years. When they're 'full'
they will accept no more charge so keeping it on the boil for antoher
14 hours will no do any harm, but it's not going to charge it either.
--
-- Nick ICQ: 9235201 EMAIL & MSN: [email protected]
-- LOTR#4 SKOGA#8 DS#7 BOTAFOT#159 BOTM#2 FBOTY#06 PM#11
-- Suzuki GSF600n - www.bgn.me.uk You set my soul alight

"the dog from that film you saw" <[email protected]> wrote
in message news:[email protected]...
> When getting a new phone from e2save yesterday they reminded me - i must
> charge it for 16 hours before first use!
> is this some kind of old wives tale? - playing safe?
> i've never heard such a thing before -and the phone manual clearly says a
> full charge can take up to 2 and a half.....


A number of years ago I took delivery of a (then) brand new Orange SPV E200.
I rang them that afternoon to get the GPRS and MMS up and running. They
refused to help me until I'd have the handset on charge and switched off for
sixteen hours. When pressed the technical support said that during this
time the devices' menus would be set up properly. I explained that, no,
this isn't how it works, when it's switched off it is just that, switched
off - could she please perform the next step in her crib sheet.

These days I use Virgin...

--
The DervMan
www.dervman.com
"Faccia come dico non come,
guidi il diesel di Volkswagen."

"BGN" <[email protected]> wrote in message
news:[email protected]
> On Sat, 30 Dec 2006 10:19:46 GMT, Jono
> <[email protected]> wrote:

[snip]

> Batteries have changed somewhat over the years. When
> they're 'full' they will accept no more charge so keeping
> it on the boil for antoher 14 hours will no do any harm,
> but it's not going to charge it either.

A *first* charge, where the battery has never been charged before, should
be a little longer. When a charger indicates "full" the battery isn't
really full but at around 98% or so, leaving it a bit longer ensures a
proper full charge.

Why are people so eager to use a new phone that they can't wait a little
longer to help prolong the battery's eventual life..?

Ivor

"Ivor Jones" <[email protected]> wrote in message
news:[email protected]...
>

> Why are people so eager to use a new phone that they can't wait a little
> longer to help prolong the battery's eventual life..?



human nature!

but really - i'm happy to wait a bit - it's just that when sony themselves
say 'charge for 2 and a half hours' it seems to be stretching credibility
for the shop to tell you 16 hours.
3 or 4 hours maybe to get it going but - 16!?

it just sounds like a catch all statement to cover themselves just in case
someone causes premature death for their battery by giving it 20 minutes.



--
Gareth.
A french man who wanted a castle threw his cat into a pond.
http://www.audioscrobbler.com/user/dsbmusic/

"Ivor Jones" <[email protected]> wrote in message
news:[email protected]...
> A *first* charge, where the battery has never been charged before, should
> be a little longer. When a charger indicates "full" the battery isn't
> really full but at around 98% or so, leaving it a bit longer ensures a
> proper full charge.
>
> Why are people so eager to use a new phone that they can't wait a little
> longer to help prolong the battery's eventual life..?

Once it says 'fully charged' - it wont trickle charge, the phone's software
disallows any further charge. Most modern non-PDA phones don't trickle
charge once they're full, software is used to detect when charge has dropped
again (usually by 1.5%.) Technically there's not much point leaving a phone
charging past the 'fully charged' stage these days, even on first use.

However, if you're *that* desperate to use a phone, then you really should
get out more. Just let it charge away happily

"David R" <[email protected]> wrote in message
news:[email protected]
> "Ivor Jones" <[email protected]> wrote in message
> news:[email protected]...
> > A *first* charge, where the battery has never been
> > charged before, should be a little longer. When a
> > charger indicates "full" the battery isn't really full
> > but at around 98% or so, leaving it a bit longer
> > ensures a proper full charge. Why are people so eager to use a new
> > phone that they
> > can't wait a little longer to help prolong the
> > battery's eventual life..?
>
> Once it says 'fully charged' - it wont trickle charge,
> the phone's software disallows any further charge. Most
> modern non-PDA phones don't trickle charge once they're
> full, software is used to detect when charge has dropped
> again (usually by 1.5%.) Technically there's not much
> point leaving a phone charging past the 'fully charged'
> stage these days, even on first use.

When the phone says "fully charged" it's lying. It's typically at around
98% charge, you do need to leave it a little longer to get a 100% charge.

Ivor

"Ivor Jones" <[email protected]> wrote in message
news:[email protected]...
>
> "David R" <[email protected]> wrote in message
> news:[email protected]
>> "Ivor Jones" <[email protected]> wrote in message
>> news:[email protected]...
>> > A *first* charge, where the battery has never been
>> > charged before, should be a little longer. When a
>> > charger indicates "full" the battery isn't really full
>> > but at around 98% or so, leaving it a bit longer
>> > ensures a proper full charge. Why are people so eager to use a new
>> > phone that they
>> > can't wait a little longer to help prolong the
>> > battery's eventual life..?
>>
>> Once it says 'fully charged' - it wont trickle charge,
>> the phone's software disallows any further charge. Most
>> modern non-PDA phones don't trickle charge once they're
>> full, software is used to detect when charge has dropped
>> again (usually by 1.5%.) Technically there's not much
>> point leaving a phone charging past the 'fully charged'
>> stage these days, even on first use.
>
> When the phone says "fully charged" it's lying. It's typically at around
> 98% charge, you do need to leave it a little longer to get a 100% charge.


When most, surely? And it'll do this regardless of if it's the first charge
or otherwise...

But, if the battery needs conditioning, ensuring it's fully charged is
probably sensible.

--
The DervMan
www.dervman.com
"Faccia come dico non come,
guidi il diesel di Volkswagen."

On Sat, 30 Dec 2006 22:08:00 GMT, Gavin <[email protected]> wrote:

>Not really
>
>The proper (ie OEM) charger limits current to 1C, where C=cell
>capacity, e.g., 820 mAh for my L7.
>
>As cell voltage increases, so must charge voltage increase to force
>current through the cell until the voltage applied to the cell reaches
>a maximum of 4.235 V. As cell voltage rises to 4.235V, current
>approaches zero. When charge current falls to 0.1 C, the cell is full,
>at that point it won't take any more charge.
>
>Leaving it for a few hours more won't make any difference as the
>phones software won't do anything until it detects the voltage has
>dropped a bit, and then it will go back to charge mode.

I find that on my modern handsets if I plug the phone in and leave it
on charge all night it says fully charged, and in the morning I unplug
the power cord and plug it back in again and then it starts to charge
again for a few minutes.

This has always made me think that it just turns the charging 'off'
and it runs off of the phone battery for the rest of the night until
charging is restarted (but unplugging/plugging in again)
--
-- Nick ICQ: 9235201 EMAIL & MSN: [email protected]
-- LOTR#4 SKOGA#8 DS#7 BOTAFOT#159 BOTM#2 FBOTY#06 PM#11
-- Suzuki GSF600n - www.bgn.me.uk You set my soul alight

On 30 Dec 2006, the dog from that film you saw
<[email protected]> wrote:




> "Ivor Jones" <[email protected]> wrote in message
> news:[email protected]...
>>
>
>> Why are people so eager to use a new phone that they can't wait a
>> little longer to help prolong the battery's eventual life..?
>
>
>
> human nature!
>
> but really - i'm happy to wait a bit - it's just that when sony
> themselves say 'charge for 2 and a half hours' it seems to be
> stretching credibility for the shop to tell you 16 hours.
> 3 or 4 hours maybe to get it going but - 16!?
>
> it just sounds like a catch all statement to cover themselves just
> in case someone causes premature death for their battery by giving
> it 20 minutes.
>
>
>

I think this idea of topping all the cells by a super-long charge is
mainly for NiCds and NiMHs. Am not so sure Li-On needs it although
it take a few cycles before a lithium is completely up to full
strength too.