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Author Topic: Battery in my calc exploded  (Read 21010 times)

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Offline fb39ca4

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Re: Battery in my calc exploded
« Reply #15 on: October 17, 2010, 03:56:43 pm »
Just wondering, is it a bad thing if you get a low battery warning immediately after putting in new batteries? That happened when I put in those batteries, and I ignored it because they were fresh
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Offline TravisE

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Re: Battery in my calc exploded
« Reply #16 on: October 17, 2010, 04:09:58 pm »
Does the warning stay on persistently or just show occasionally? Also, alkaline or rechargeable?

Whoops, misread the post.

That was probably due to the cell that exploded, due to whatever made it explode. If it was a short of some kind, it probably drew enough current to drain the battery very quickly and pull down the voltage too much. If it happened right after you put in those batteries, and the explosion occurred much later, that might be evidence that it was the battery itself that was defective in this case.
« Last Edit: October 17, 2010, 04:18:58 pm by TravisE »
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Offline matthias1992

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Re: Battery in my calc exploded
« Reply #17 on: October 17, 2010, 04:23:11 pm »
Quote from: fb39ca4 on October 17, 2010, 03:56:43 pm
Just wondering, is it a bad thing if you get a low battery warning immediately after putting in new batteries? That happened when I put in those batteries, and I ignored it because they were fresh
From now on we know it is. I'd say, sue that brand of batteries, it was obviously the batteries 'fault'. You shouldn't have this problem with rechargable batteries because they are nearly immune to exploding...
I myself use duracel batteries, not specifically because of that brand but just because you know there is something going wrong when 'custom' supermarket batteries are like $5 dollars cheaper....the signs are everywhere

edit: I am not supersticious! I just want to know where my shotgun is!
« Last Edit: October 17, 2010, 04:23:39 pm by matthias1992 »
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Offline TravisE

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Re: Battery in my calc exploded
« Reply #18 on: October 17, 2010, 04:27:43 pm »
Quote from: matthias1992 on October 17, 2010, 04:23:11 pm
You shouldn't have this problem with rechargable batteries because they are nearly immune to exploding...

Well, I wouldn't be too quick to say that—any type of battery is potentially dangerous if defective or abused (e.g., incorrect charging, drawing more current than it is designed to safely do, etc.)
« Last Edit: October 17, 2010, 04:28:45 pm by TravisE »
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Offline Snake X

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Re: Battery in my calc exploded
« Reply #19 on: October 17, 2010, 04:33:21 pm »
well.. ndless did have that power management bug didn't it? :o could that have something to do with it maybe?
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Offline ztrumpet

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Re: Battery in my calc exploded
« Reply #20 on: October 17, 2010, 04:42:43 pm »
Quote from: TravisE on October 17, 2010, 03:53:07 pm
Although I've never seen it happen firsthand, one thing I've heard of quite frequently over the years are TI calculators that seem to drain batteries in an excessively short period of time for no apparent reason. I guess somehow something in the calculator circuitry develops a defect that draws excessive current from the batteries in these cases.
I know DJ's 83+SE had this happen to it. :(

Good luck fb39ca4! :)
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Offline Ranman

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Re: Battery in my calc exploded
« Reply #21 on: October 17, 2010, 04:44:23 pm »
Take some baking soda mixed with water along with a QueTip and clean that acid out of your calc.
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Offline Happybobjr

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Re: Battery in my calc exploded
« Reply #22 on: October 17, 2010, 04:53:51 pm »
Quote from: Ranman on October 17, 2010, 04:44:23 pm
Take some baking soda mixed with water along with a QueTip and clean that acid out of your calc.
QueTip?
interesting, where i live there is only QTip... oh well...


Ya,  Ranman is right, make sure you tidy it up really nice, as battery acid is acid... (happybobjr just realized what he said ...:P)
I would get it out of your calc as much as possible as fast as you can.  (baking soda neutralizes acids)
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Offline TravisE

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Re: Battery in my calc exploded
« Reply #23 on: October 17, 2010, 04:57:06 pm »
The material in an alkaline battery is actually alkaline, though, which is the opposite of acid (hence the name). ;) Still, though, it's an irritant and corrosive to some materials, so be sure to clean it up anyway. :)

Quote from: ztrumpet on October 17, 2010, 04:42:43 pm
Quote from: TravisE on October 17, 2010, 03:53:07 pm
Although I've never seen it happen firsthand, one thing I've heard of quite frequently over the years are TI calculators that seem to drain batteries in an excessively short period of time for no apparent reason. I guess somehow something in the calculator circuitry develops a defect that draws excessive current from the batteries in these cases.
I know DJ's 83+SE had this happen to it. :(

Yeah, I think I also remember Netham45 mentioning on IRC the other day that he had a calc that not only did that, but made the batteries hot in the process. It would be interesting if someone hooked up an ammeter or ohmmeter to a calc doing that to see what the current draw/resistance is at the battery terminals compared to a properly functioning calc.
« Last Edit: October 17, 2010, 05:01:38 pm by TravisE »
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Offline Happybobjr

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Re: Battery in my calc exploded
« Reply #24 on: October 17, 2010, 04:58:18 pm »
Quote from: TravisE on October 17, 2010, 04:57:06 pm
The material in an alkaline battery is actually alkaline, though, which is the opposite of acid (hence the name). ;) Still, though, it's an irritant and corrosive to some materials, so be sure to clean it up anyway. :)

hummm, its a bace?  thats good to know. (so pour orange juice into your calc??? >:D )

Edit:  we were tought bace and acid instead of alkaline and acid at our school.  I guess the teachers think we're dumb? ))) (<- syntax error :P )
« Last Edit: October 17, 2010, 05:00:02 pm by happybobjr »
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Offline Ranman

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Re: Battery in my calc exploded
« Reply #25 on: October 17, 2010, 07:08:37 pm »
Quote from: TravisE on October 17, 2010, 04:57:06 pm
The material in an alkaline battery is actually alkaline, though, which is the opposite of acid (hence the name). ;) Still, though, it's an irritant and corrosive to some materials, so be sure to clean it up anyway. :)

Well... That's embarrassing...

I'm gonna blame the Hydrocodone pain medication for clouding my brain functionality. :D
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Offline fb39ca4

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Re: Battery in my calc exploded
« Reply #26 on: October 17, 2010, 07:52:38 pm »
I already did the qtip thing-luckily the base came out between two batteries, so it didn't get on the terminals.
 
Quote from: TravisE on October 17, 2010, 04:09:58 pm
Does the warning stay on persistently or just show occasionally? Also, alkaline or rechargeable?

Whoops, misread the post.

That was probably due to the cell that exploded, due to whatever made it explode. If it was a short of some kind, it probably drew enough current to drain the battery very quickly and pull down the voltage too much. If it happened right after you put in those batteries, and the explosion occurred much later, that might be evidence that it was the battery itself that was defective in this case.
Let this be a warning to everyone-if you get a low battery warning right after putting in fresh batteries, get them out ASAP!
« Last Edit: October 17, 2010, 07:55:02 pm by fb39ca4 »
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Offline critor

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Re: Battery in my calc exploded
« Reply #27 on: October 17, 2010, 09:21:07 pm »
No picture ? :'(
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Re: Battery in my calc exploded
« Reply #28 on: October 17, 2010, 09:25:46 pm »
Glad to hear it still works, now go wash your sheets.
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Offline TIfanx1999

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Re: Battery in my calc exploded
« Reply #29 on: October 17, 2010, 10:15:17 pm »
Thankfully I've never had a battery explode on me in any of the portable devices I've had. That would've scared the shit out of me. I'm glad that you and the calc are fine. ^^
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