Internal battery

[Zink]

Does the C3000 come with an internal battery that prevents it from rebooting during battery changing?
   I got my c3000 two days ago and I charged it for about 6 hours before using it.
It worked fine except that it would reboot every time when i change the battery.
I believe that it has an internal battery otherwise the reset button would be an unnecessary design.
    I would like to know if you guys can change the battery without rebooting the device.

[bastichelaar]

The internal clock is only to remember the time... When you attach the power supply, and THEN change the battery, the device problay won't  reboot...

[matrix]

Reset buttons are always welcome, a freeze is bad enough without having to take out the battery to force a reboot.

[omega]

Shiny! - The 3000 has a reset button?

I believe that if you change the battery within a few (<5 seconds) then it won't reboot.

[devster]

I dont see any reset buttons!

In fact, still trying to figure out how to power down, "shutdown now" hangs it without shutting down or powering down.  Also tried a poweroff util, and it didnt run.

 

[Zink]

There is a illustration on p.216 of  the manuel which points out  the reset button

[daniel3000]

Shiny! - The 3000 has a reset button?

I believe that if you change the battery within a few (<5 seconds) then it won't reboot.
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Not here.

Maybe a capacitor in parallel with the battery would allow for fast battery changing without reboot.

Anyone tried that?

daniel

[jfs.w]

so just to summarize, (and more or less answer the question), there is no internal battery in the 3000? meaning that if u take out the external battery while the unit is running, it will "die"?

another related question - so I assume the same thing will apply to the 3100 as well?

[icruise]

so just to summarize, (and more or less answer the question), there is no internal battery in the 3000? meaning that if u take out the external battery while the unit is running, it will "die"?

another related question - so I assume the same thing will apply to the 3100 as well?
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That is correct.

[Jonathan]

Hi all,

I asked the same question on this forum some six months ago and was dissapointed even then.  The lack of internal battery is the *one* thing I would definitely change on my C3000.  

I use three C3000 batteries and an external changer, so the "instant reset feature" when changing batteries has been a real pain.  

My solution has been to carry around a little emergency power supply for a mobile phone that has had the original moulded phone plug cut off and a zaurus power plug attached.  This takes 4 of the smaller size penlight batteries (AAA in the UK, size 4 in Japan) so its not very heavy.  I've used it for six months without changing the penlight batteries.  Since it's only used for a few seconds each time I expect the little penlight batteries will last a long time.  The battery phone changer was bought for 100yen from the local "100 Yen Shop" here in Japan (that's about $1US or 50UK pence.)  Cheap DIY solution.

Attached are pictures for anyone interested.

Jonathan

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[Scot]

Nice work, Johnathan.
Where did you get the Zaurus plug end?

thanks,

scot

[Jonathan]

Nice work, Johnathan.
Where did you get the Zaurus plug end?

thanks,

scot
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Plug came off an old wall brick transformer.  I looked in various electronics component catalogues but I couldn't find the plug anywhere.  I did recently see a few of these plugs in a backstreet shop in a Hong Kong though, if you fancy a trip...  

Jonathan.

[dougeeebear]

Plugs and battery packs are available at Radio Shack.

The following worked for my 5500.
It might also work for the 3000 as well as others.

https://www.oesf.org/forums/index.php?showtopic=8023&hl=#

Scroll down and read post #7 by V-Man.

[swing]

so just to summarize, (and more or less answer the question), there is no internal battery in the 3000? meaning that if u take out the external battery while the unit is running, it will "die"?

And another question if I may - what happens if the main battery runs out - I have a 5500, which is well known that when the battery runs out, you lose everything stored in the machine, and have to reinstall everything - I remember when the 700/750/760 came out the few early reviews mentioned this problem had gone away, presumably with a small internal battery to keep the data safe.  I assume the 3000/3100 still have this battery, or are we saying it's no longer there...?

[Meanie]

so just to summarize, (and more or less answer the question), there is no internal battery in the 3000? meaning that if u take out the external battery while the unit is running, it will "die"?

And another question if I may - what happens if the main battery runs out - I have a 5500, which is well known that when the battery runs out, you lose everything stored in the machine, and have to reinstall everything - I remember when the 700/750/760 came out the few early reviews mentioned this problem had gone away, presumably with a small internal battery to keep the data safe.  I assume the 3000/3100 still have this battery, or are we saying it's no longer there...?
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the internal battery is not needed since stuff is stored in flash ram, ie nand which is non-volatile memory as opposed to volatile memory that required a current to keep the data.