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VisorCentral.com (http://discussion.visorcentral.com/vcforum/index.php)
- How To / Troubleshooting (http://discussion.visorcentral.com/vcforum/forumdisplay.php?forumid=2)
-- lost info when changing battery (http://discussion.visorcentral.com/vcforum/showthread.php?threadid=3104)


Posted by AussiS5 on 07-29-2000 03:19 AM:

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So I was changing the battery and was having a little trouble getting it out. So it could have been a mintre or so before i got the new ones in. (i'm eating batteries like candy by the way. Maybe a new set every 2 weeks) but anyway, when i turned it back on it was like i reset it and everything i had on there was gone. I had to reload everything. Is there a backup battery? like one of those lithium things? cause if so that's dead now. What should i do? Thanks-- Jeff


Posted by editboxer on 07-29-2000 03:42 AM:

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The only way to avoid this is to get the old batteries out and the new ones in before a minute goes by. If you miss this window, the only thing lost is a little time reloading your stuff.

I keep my own set of back up items in a seperate folder 'cause the PalmOS will restore everything in the back up folder......even if it's stuff you've deleted off your rig. Also there's stuff that you've probably loaded up that never gets stuck into the back up folder.

A buddy of mine just bought some really good rechargeable AAA bats and he loves 'em. He said not to by the cheap rechargeables 'cuz they suck.

HTH

------------------
Did we blow up yet?


...long hair, gun slinging, spurs hittin the floor...


Posted by AussiS5 on 07-29-2000 03:59 AM:

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thanks. I was just worried about losing it again. Cause another PDA i had used a lithium for backup.


Posted by adfleisher on 07-29-2000 03:18 PM:

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I've found that if you leave one of the batterys in while changing the other it will keep the info safe even if it takes 5 or more minutes to get the other battery in. As a call-center tech lead I sometimes get interupted in the middle of important tasks.


Posted by Petro on 07-31-2000 03:54 PM:

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I have 4 AAA Radio Shack NMHi batteries and a charger. It's worked great for me: when one pair runs low, I pop them out and pop in the other pair (always having only 1 battery out at a time) I usually get about 2 weeks of heavy use out of them.

------------------
-Petro
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Posted by chucm on 07-31-2000 08:02 PM:

Unhappy

I just finished the "re-load everything" exercise! First time since Nov '99 when I got my VDX.
- Was trying good rechargables for the first time - Energizer Ni-Mh - put them in on 7/20! But I left the VDX at work in the cradle all weekend!
- When I came in this morning the batteries were totally dead! Naturally I never saw the "low battery" warnings.
- Didn't lose any data at all - just some time! Never had this problem w. standard alkalines, so:
-- do the rechargables simply die faster?
-- or did leaving it in the cradle deplete the batteries (I think I've seen a posting to that effect)?
-- or what?


Posted by Mark Squires on 07-31-2000 08:49 PM:

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The easiest solution.......I always backup up using my springboard backup module before I change batteries. No worries.


Posted by leojbramble on 08-04-2000 02:46 PM:

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quote:
Originally posted by adfleisher:
I've found that if you leave one of the batterys in while changing the other it will keep the info safe even if it takes 5 or more minutes to get the other battery in. As a call-center tech lead I sometimes get interupted in the middle of important tasks.



Hey, good call! Makes a lot of sense...
My first set just depleted after only about 8 days, but then again, I've been keeping mine on for long periods at a time reading e-books I've downloaded from www.mobipocket.com.

[This message has been edited by leojbramble (edited 08-04-2000).]


Posted by MarkEagle on 08-04-2000 03:19 PM:

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quote:
Originally posted by adfleisher:
...if you leave one of the batterys in while changing the other...


I don't want to burst anyone's bubble here, but the Visor batteries (like most battery powered devices) are connected in "series" which means that when one is removed, the power connection is lost. It's the same principle as any 2-cell flashlight... if one is removed, the flashlight no longer works.

<device>---[+ bat1 -][+ bat2 -]---<device>

Inside the Visor is a capacitor that stores voltage for use during battery replacement. It is the amount of power stored by this capacitor that determines just how long the Visor can survive without batteries.

------------------
MarkEagle - Ice is nice!


Posted by Babylon5 on 08-04-2000 03:32 PM:

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quote:
Originally posted by MarkEagle:
I don't want to burst anyone's bubble here, but the Visor batteries (like most battery powered devices) are connected in "series" which means that when one is removed, the power connection is lost. It's the same principle as any 2-cell flashlight... if one is removed, the flashlight no longer works.

<device>---[+ bat1 -][+ bat2 -]---<device>

Inside the Visor is a capacitor that stores voltage for use during battery replacement. It is the amount of power stored by this capacitor that determines just how long the Visor can survive without batteries.





ME, I think you actually missed the point here.

I think he understood that you break the connection. He was saying to change one battery while leaving one of the old ones in so the interruption is minimal.

You remove one old battery, breaking the connection thus using the backup capacitor, replace it with a new one bring it back to external power faster. It is a fast swap as opposed to removing both then replacing both at once. This way if you get interrupted the Visor can run on one new and one old battery until you swap the other old one. Then you would replace the other older one the same way.


Posted by dequardo on 08-04-2000 06:18 PM:

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The issue here is capacitor time. I was shocked on my very first battery swap to find I had, in essence, done a hard rest. I had both out literally only 15 seconds. Since that time I've only removed and replaced one at a time. No further problems. I either had a very marginal capacitor on my original or ????

Mike


Posted by MarkEagle on 08-05-2000 03:41 PM:

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quote:
Originally posted by Babylon5:

ME, I think you actually missed the point here.



<ducking under the table to avoid getting hit by all those old batteries!>

I guess I did miss the point...

1) Remove OldBat1, leaving OldBat2 in place.
2) Insert NewBat1.
3) Remove OldBat2.
4) Insert NewBat2.

<peering from under the table to see if it's safe...>

------------------
MarkEagle - Ice is nice!


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