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Saving a battery discharge

 
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wibbly
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PostPosted: Sun Jan 21, 2007 10:32 am    Post subject: Saving a battery discharge Reply with quote

When I received my TT1 V2 Europe, I'm sure it worked out of the box - the battery must have had charge in it, despite it being some time since it the TT was manufactured, no doubt.

So what's the proceedure (is there one?) to reproduce this "mode", where there is little self discharge/drain with the unit off?

1 Remove the SD card?
2 Remove the SD card and turn the unit on then off?
3 Remove the SD card and hard reset the TT?
4 Do the above standing on one leg ;-)
5 ?

Anyone tested this already? I guess 4 is most likely, but may be unneccessary...
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thebinman
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PostPosted: Sun Jan 21, 2007 10:38 am    Post subject: Re: Saving a battery discharge Reply with quote

wibbly wrote:
When I received my TT1 V2 Europe, I'm sure it worked out of the box - the battery must have had charge in it, despite it being some time since it the TT was manufactured, no doubt.

So what's the proceedure (is there one?) to reproduce this "mode", where there is little self discharge/drain with the unit off?

1 Remove the SD card?
2 Remove the SD card and turn the unit on then off?
3 Remove the SD card and hard reset the TT?
4 Do the above standing on one leg ;-)
5 ?

Anyone tested this already? I guess 4 is most likely, but may be unneccessary...


Can't be done. It's shipped virtually fully charged and until you plug the SD card in, nothing is drawing current.
Once the SD card has been inserted, the internal clock & flash memory will be running hence the discharge over 3-5 days even switched off.
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wibbly
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PostPosted: Sun Jan 21, 2007 10:49 am    Post subject: Reply with quote

You'd think 3 should accomplish the same thing IF it were a proper hard reset...

Flash shouldn't be powered when the unit is off anyway. But certainly RAM and clock are likely to be to retain state.

The constant and arguably unneccessary cycling of the battery is only going to serve to reduce its service life, and accellerate the time when we're all working out how to replace the internal battery :-(
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sgould
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PostPosted: Sun Jan 21, 2007 1:52 pm    Post subject: Reply with quote

I wouldn't worry too much. I've had a random problem on my 700 with a flat battery after switching off overnight, but that may be that I've turned it on again when putting it in the case...

However, I didn't use the GO over Christmas and the holidays and there was plenty of charge in the battery after sitting on the shelf for nearly 3 weeks.
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Eldar
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PostPosted: Sun Jan 21, 2007 9:34 pm    Post subject: Reply with quote

hard reset will switch off everything in a GO/ONE
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thebinman
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PostPosted: Mon Jan 22, 2007 11:51 am    Post subject: Reply with quote

Eldar wrote:
hard reset will switch off everything in a GO/ONE


Really? Even the internal clock etc?
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Eldar
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PostPosted: Mon Jan 22, 2007 2:33 pm    Post subject: Reply with quote

thebinman wrote:
Eldar wrote:
hard reset will switch off everything in a GO/ONE


Really? Even the internal clock etc?


yep
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thebinman
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PostPosted: Mon Jan 22, 2007 3:04 pm    Post subject: Reply with quote

Eldar wrote:
thebinman wrote:
Eldar wrote:
hard reset will switch off everything in a GO/ONE


Really? Even the internal clock etc?


yep


I thought that even after a hard reset when you then reinsert the SD card it remembered the time but I've just checked and you're right!!! Wink
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wibbly
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PostPosted: Mon Jan 22, 2007 3:06 pm    Post subject: Reply with quote

So a simple "poke in it's reset hole" when I don't expect to be using it a while should save the battery self discharging quickly?
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Eldar
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PostPosted: Mon Jan 22, 2007 3:14 pm    Post subject: Reply with quote

wibbly wrote:
So a simple "poke in it's reset hole" when I don't expect to be using it a while should save the battery self discharging quickly?


yes, but if you going to store the unit, then make sure that the battery is 40-50% charged (not discharged or fully charged!) http://www.satnav-shop.com/index.php?ln=en&pg=6&sec=6
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Eldar
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PostPosted: Mon Jan 22, 2007 3:15 pm    Post subject: Reply with quote

thebinman wrote:
...I've just checked and you're right!!! Wink

Strange, isn't it :-)?
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Oldboy
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PostPosted: Mon Jan 22, 2007 4:52 pm    Post subject: Reply with quote

Eldar wrote:
thebinman wrote:
...I've just checked and you're right!!! Wink

Strange, isn't it :-)?
What! Being right. 8O
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thebinman
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PostPosted: Mon Jan 22, 2007 6:07 pm    Post subject: Reply with quote

Oldboy wrote:
Eldar wrote:
thebinman wrote:
...I've just checked and you're right!!! Wink

Strange, isn't it :-)?
What! Being right. 8O


Every dog has his day I 'spose Question
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trog100
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PostPosted: Mon Jan 22, 2007 8:58 pm    Post subject: Reply with quote

lithium cells die off even when not in use so i wouldnt worry about it too much..

i think the things have a design life of about two years after that they expect u to invest in newer more uptodate one.. he he

trog
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