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"Richard" <[email protected]> wrote in message
news:[email protected]...
>I have a PDA that I use for sat nav but when I dont use it for a while the
>battery goes flat and I loose data.
> What I thought of doing was installing a cigarette lighter in the glove
> box (1995 Discovery) so I can have it on charge all the time. Is there a
> permanent live feed behind the glove box I can connect to?
> Or does anyone know of a reason I shouldn't have it on charge permantly?
>
> Thanks
> Richard
>
>
Hi,

apart from a constant drain on the battery I've heard that if you start a
vehicle with gadgets already plugged in it can fry the electrics in said
gadgets.

might be an UL but I always unplug my mobile etc before starting the car.

Peter


 

"Richard" <[email protected]> wrote in message
news:[email protected]...
>I have a PDA that I use for sat nav but when I dont use it for a while the
>battery goes flat and I loose data.
> What I thought of doing was installing a cigarette lighter in the glove
> box (1995 Discovery) so I can have it on charge all the time. Is there a
> permanent live feed behind the glove box I can connect to?
> Or does anyone know of a reason I shouldn't have it on charge permantly?
>
> Thanks
> Richard

The digital clock feed is permanently live and in that area. I suppose it
could eventually flatten your battery but I doubt a PDA on standby uses much
though the adapter probably sucks more juice down dropping the voltage. I
would be more worried about whether the PDA adapter would not overheat
certainly my mobile phone adapter gets quite warm. If your unit will
recharge batteries while connected to an external supply I would be happier
with a switched power source which would just top up when you were driving
and get some decent rechargeables by choice NiMH type

http://www.7dayshop.com/catalog/default.php?cat=3&type=3060&man=0&filterwords=&go=SEARCH&comp=Derek

 
Richard <[email protected]> uttered summat worrerz funny about:
> I have a PDA that I use for sat nav but when I dont use it for a
> while the battery goes flat and I loose data.
> What I thought of doing was installing a cigarette lighter in the
> glove box (1995 Discovery) so I can have it on charge all the time.
> Is there a permanent live feed behind the glove box I can connect to?
> Or does anyone know of a reason I shouldn't have it on charge
> permantly?
> Thanks
> Richard

Is it a Mio? I have one of these, there are a number of things you can do to
safeguard you data, especially if you are using Medion Navigator such as
backing up all your saved destinations.etc etc.

Lee D


 
On Sat, 5 Aug 2006 12:32:17 +0100, "Lee_D"
<[email protected]> wrote:

>Is it a Mio? I have one of these, there are a number of things you can do to
>safeguard you data, especially if you are using Medion Navigator such as
>backing up all your saved destinations.etc etc.

My mio always seems to loose all my tomtom favorites when the battery
goes flat :(

 
Its a iPaq 3630. Tom Tom is ok when the battery goes flat. But I lose the
Bluetooth manager and the program to run the Memory Map maps. I have to
reinstall from pc.
I have tried saving those two programs on to the compact flash card but they
wont work from that.

Richard


"Lee_D" <[email protected]> wrote in message
news:[email protected]...
> Richard <[email protected]> uttered summat worrerz funny about:
>> I have a PDA that I use for sat nav but when I dont use it for a
>> while the battery goes flat and I loose data.
>> What I thought of doing was installing a cigarette lighter in the
>> glove box (1995 Discovery) so I can have it on charge all the time.
>> Is there a permanent live feed behind the glove box I can connect to?
>> Or does anyone know of a reason I shouldn't have it on charge
>> permantly?
>> Thanks
>> Richard
>
> Is it a Mio? I have one of these, there are a number of things you can do
> to safeguard you data, especially if you are using Medion Navigator such
> as backing up all your saved destinations.etc etc.
>
> Lee D
>


 
On 2006-08-05, Derek <[email protected]> wrote:

> I would be more worried about whether the PDA adapter would not
> overheat certainly my mobile phone adapter gets quite warm. If your
> unit will recharge batteries while connected to an external supply I
> would be happier with a switched power source which would just top
> up when you were driving and get some decent rechargeables by choice
> NiMH type

It's best to use the switched method, Lithium Ion batteries of the
type used in most phones and PDAs don't like to be on permanent
charge, it damages the battery.

--
Blast off and strike the evil Bydo empire!
 
Tom Woods <[email protected]> uttered summat worrerz funny
about:
> On Sat, 5 Aug 2006 12:32:17 +0100, "Lee_D"
> <[email protected]> wrote:
>
>> Is it a Mio? I have one of these, there are a number of things you
>> can do to safeguard you data, especially if you are using Medion
>> Navigator such as backing up all your saved destinations.etc etc.
>
> My mio always seems to loose all my tomtom favorites when the battery
> goes flat :(

Duno about Tom Tom but on the Medion Navigator Software there is a file
called Favorites, every now and then I bung a copy over to the Memory card.
As the Medion Nav will self install it's not a dead loss then if it dies
away from home/PC. It also has a backup facility which again restores
everything.

I found by switching all the settings I've managed to retain the battery
quite well so far only having one hickup in just over tweleve months.

Lee D


 
Richard <[email protected]> uttered summat worrerz funny about:
> Its a iPaq 3630. Tom Tom is ok when the battery goes flat. But I lose
> the Bluetooth manager and the program to run the Memory Map maps. I
> have to reinstall from pc.
> I have tried saving those two programs on to the compact flash card
> but they wont work from that.
>
> Richard

Have you got a Backup option? I've found this works well, but only as well
as your most recent backup.

Lee D


 
On 2006-08-05, jOn <[email protected]> wrote:

> from http://www.ipaqrepair.co.uk/ipaq_battery.php
>
> 9. How frequently can you recharge the battery?
>
> Due to the nature of the batteries used in all iPAQ models you can recharge
> as often and for as long as you like. Your battery will not be damaged by
> this practice nor can it be overcharged, constant charging of the iPAQ's
> battery will actually improve the battery's life span.

Lithium Ion batteries get hot if left on charge and can be damaged and
even explode, either the FAQ above is wrong or the ipaq isn't using
lithium ion batteries. Devices like laptops have a charger built-in
which keeps them topped up, and the batteries themselves have in-built
intelligence which uses a protocol called smbus or something like that
to keep them within spec. Smaller devices like PDAs and phones don't
tend to do that so much due to size. Perhaps the ipaq has more
battery smarts but I'd tread that FAQ entry with caution. In general,
if a lithium-ion battery gets warm or hot, it's being screwed by the
charger.

As for improving the lifespan, lithium-ion batteries have a shelf life
that drops with age, which is why laptop batteries and mobile phone
batteries don't tend to be much use after 4-5 years or so. Quite how
the ipaq faq thinks that keeping it on constant charge makes it better
I don't know, absolutely no other battery FAQ of any kind I've ever
seen has said anything like that regarding Li-Ion. That part for
certain is total rubbish.

Here's one link that's from a fairly reliable source, there's others
out there too if you care to do a bit of googling.

http://www.batteryuniversity.com/parttwo-34.htm

--
Blast off and strike the evil Bydo empire!
 
Ian Rawlings wrote:

> Lithium Ion batteries get hot if left on charge and can be damaged and
> even explode, either the FAQ above is wrong or the ipaq isn't using
> lithium ion batteries.

Smart lithium chargers are single chip systems now, its quite
conceivable the Ipaq has a "gas-gauge" circuit and can decide for itself
if it wants to charge.

Steve
 

"Ian Rawlings" <[email protected]> wrote in message
news:[email protected]...
> On 2006-08-05, jOn <[email protected]> wrote:
>
>> from http://www.ipaqrepair.co.uk/ipaq_battery.php
>>
>> 9. How frequently can you recharge the battery?
>>
>> Due to the nature of the batteries used in all iPAQ models you can
>> recharge
>> as often and for as long as you like. Your battery will not be damaged by
>> this practice nor can it be overcharged, constant charging of the iPAQ's
>> battery will actually improve the battery's life span.
>
> Lithium Ion batteries get hot if left on charge and can be damaged and
> even explode, either the FAQ above is wrong or the ipaq isn't using
> lithium ion batteries. Devices like laptops have a charger built-in
> which keeps them topped up, and the batteries themselves have in-built
> intelligence which uses a protocol called smbus or something like that
> to keep them within spec. Smaller devices like PDAs and phones don't
> tend to do that so much due to size. Perhaps the ipaq has more
> battery smarts but I'd tread that FAQ entry with caution. In general,
> if a lithium-ion battery gets warm or hot, it's being screwed by the
> charger.
>
> As for improving the lifespan, lithium-ion batteries have a shelf life
> that drops with age, which is why laptop batteries and mobile phone
> batteries don't tend to be much use after 4-5 years or so. Quite how
> the ipaq faq thinks that keeping it on constant charge makes it better
> I don't know, absolutely no other battery FAQ of any kind I've ever
> seen has said anything like that regarding Li-Ion. That part for
> certain is total rubbish.
>
> Here's one link that's from a fairly reliable source, there's others
> out there too if you care to do a bit of googling.
>
> http://www.batteryuniversity.com/parttwo-34.htm
>
> --
> Blast off and strike the evil Bydo empire!


All very interesting. Here is what I have done, I have put a lighter socket
in the glove box but its only live when the ignition is on. So the iPaq will
only charge when the ignition is on.
I assume this is ok?

Richard


 

"Ian Rawlings" <[email protected]> wrote in message
news:[email protected]...
> On 2006-08-05, Derek <[email protected]> wrote:
>
>> I would be more worried about whether the PDA adapter would not
>> overheat certainly my mobile phone adapter gets quite warm. If your
>> unit will recharge batteries while connected to an external supply I
>> would be happier with a switched power source which would just top
>> up when you were driving and get some decent rechargeables by choice
>> NiMH type
>
> It's best to use the switched method, Lithium Ion batteries of the
> type used in most phones and PDAs don't like to be on permanent
> charge, it damages the battery.

from http://www.ipaqrepair.co.uk/ipaq_battery.php

9. How frequently can you recharge the battery?

Due to the nature of the batteries used in all iPAQ models you can recharge
as often and for as long as you like. Your battery will not be damaged by
this practice nor can it be overcharged, constant charging of the iPAQ's
battery will actually improve the battery's life span.


 
On 2006-08-05, Richard <[email protected]> wrote:

> All very interesting. Here is what I have done, I have put a lighter socket
> in the glove box but its only live when the ignition is on. So the iPaq will
> only charge when the ignition is on.
> I assume this is ok?

That's the best bet, you won't run down your car batteries, and won't
feck up the ipaq.

--
Blast off and strike the evil Bydo empire!
 
On 2006-08-05, steve <[email protected]> wrote:

> Smart lithium chargers are single chip systems now, its quite
> conceivable the Ipaq has a "gas-gauge" circuit and can decide for
> itself if it wants to charge.

Indeed, but ISTR someone saying that it gets warm when it's charging,
Li-Ion batteries shouldn't really do that, although it does depend on
the vintage! I know my Palm Tungsten T3 gets warm when charging even
when the unit itself is turned off.

It's a bit daft to talk about the "ipaq" though, I think they've been
making them so long there's loads of different revisions of it so
what's true for one might not be true for a newer version.

--
Blast off and strike the evil Bydo empire!
 

"Ian Rawlings" <[email protected]> wrote in message
news:[email protected]...
> On 2006-08-05, steve <[email protected]> wrote:
>
>> Smart lithium chargers are single chip systems now, its quite
>> conceivable the Ipaq has a "gas-gauge" circuit and can decide for
>> itself if it wants to charge.
>
> Indeed, but ISTR someone saying that it gets warm when it's charging,
> Li-Ion batteries shouldn't really do that, although it does depend on
> the vintage! I know my Palm Tungsten T3 gets warm when charging even
> when the unit itself is turned off.
>
> It's a bit daft to talk about the "ipaq" though, I think they've been
> making them so long there's loads of different revisions of it so
> what's true for one might not be true for a newer version.
>
> --
> Blast off and strike the evil Bydo empire!
I suggested the adaapter might get warm my phone also does tho less so,( its
a Siemens about 6 months old) so they havent actually solved the problem
yet
Derek


 
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