Lithium 9v battery?

Toren · 24th February 2006, 01:06

Quote: (Originally Posted by Underwaterbear)

Hi Toren,

Sounds to me like this idea should be filed under the heading: Probably will work but not terribly smart.

I consider it fairly unlikely that the electronics cap will flood on the prism. However, should it ever do so in the ocean, and should there be a Li - ion battery in there it would short-circuit, rapidly discharge, overheat and possibly even ignite...all not very nice for the continued integrity of your unit and your diving pleasure.

Not worth the proverbial 50cent part in my book.

Cheers
Andrew

Hooray! An answer to my question!!

Yes, that was my basic concern, as well as the fact that "9v" lithium batteries don't put out exactly 9v. I'll keep it around for the smoke detectors (love that 10 year shelf life) and get a pack of Duracells for the Topaz.
Thanks, have a green blob! And one for webslave as well!

Kyza · 24th February 2006, 01:39

One of the aspects of my job has me playing with 9 volt Lithium cells in wireless audio transmitters. These are at times exsposed to salt water, ( damn actors) and both 9 volt and electronics get drenched. I've never seen a Lithium 9 volt go up in smoke. However, it isn't in an O2 rich enviroment, the battery is removed usually within 5 mins although it has gone as long as half an hour, and I've never noticed the 9 volts to be hot. Lithium batts are used in other rebreathers, I have used lithium 9 volts in other dive equipment without problem.

Underwaterbear · 24th February 2006, 01:54

Quote: (Originally Posted by Kyza)

One of the aspects of my job has me playing with 9 volt Lithium cells in wireless audio transmitters. These are at times exsposed to salt water, ( damn actors) and both 9 volt and electronics get drenched. I've never seen a Lithium 9 volt go up in smoke. However, it isn't in an O2 rich enviroment, the battery is removed usually within 5 mins although it has gone as long as half an hour, and I've never noticed the 9 volts to be hot. Lithium batts are used in other rebreathers, I have used lithium 9 volts in other dive equipment without problem.

Hey, fair enough, knock yourself out...you won't see me using them in my rebreather though. Take a look at the MSDS for Li-ion batteries here: link

Here's the bit that gets my attention (especially if it should occur in a 1 atm housing, as is the case on a Prism) :

SECTION VI- PRECAUTIONS FOR SAFE HANDLING AND USE
Other Precautions:
Batteries may explode or cause burns, if disassembled, crushed or exposed to fire or high temperatures. Do not short or install with incorrect polarity.

All this is not to mention the nasty gases that would come out of these batteries if they were to rupture. This all leads to interesting discussions about just where the batteries should be ---> not inside the loop is a good start.

Cheers

Kyza · 24th February 2006, 02:27

Yep, makes for good reading, but this spec sheet does look like its for rechargable cells and not one use sealed 9 volts that you get from Energizer etc. I take your point about not wanting it in a breathing loop, but my point was in all the times I've had salt water drenched 9 volts I've not had a problem with the cells doing anything nasty. Personaly I would not have a problem with the Medical Grade Lithium 9 volts sold by Energizer (L522) mixing with salt or fresh water.

Toren · 24th February 2006, 03:46

Quote: (Originally Posted by Kyza)

Yep, makes for good reading, but this spec sheet does look like its for rechargable cells and not one use sealed 9 volts that you get from Energizer etc. I take your point about not wanting it in a breathing loop, but my point was in all the times I've had salt water drenched 9 volts I've not had a problem with the cells doing anything nasty. Personaly I would not have a problem with the Medical Grade Lithium 9 volts sold by Energizer (L522) mixing with salt or fresh water.

Hmm.
I'm going to make the experiment. I'm taking one with me to the Caymans next week, and I'll take it down 80 feet or so in a vacuum sealed package and then cut the sucker open.
I'll report back on the results.

Nick uk. · 24th February 2006, 06:26

The inspo keeps it's lithium batteries in the head (nice and humid)

and right next to the solenoid!

silent running · 24th February 2006, 07:26

Quote: (Originally Posted by Nick uk.)

The inspo keeps it's lithium batteries in the head (nice and humid)

and right next to the solenoid!

Hmmm, wonder what the PPLi is at 50 meters...
Are there GAP tables for LithiOx?

Sorry, couldn't resist... he he he -Andy

***Beanie*** · 24th February 2006, 10:25

Quote: (Originally Posted by silent running)

Hmmm, wonder what the PPLi is at 50 meters...
Are there GAP tables for LithiOx?

Sorry, couldn't resist... he he he -Andy

hmm could have some interesting effects

apitkin · 24th February 2006, 16:40

Quote: (Originally Posted by Beanie)

hmm could have some interesting effects

It's ideal for the manic-depressive diver. Now there's a whole new market for APD

Andy

***caveseeker7*** · 24th February 2006, 16:45

They created it, Andy. Waiting Vision Nitrox owners.

24th February 2006, 01:06	#21 (permalink)
Toren In Rebreather holding pattern... Current Rebreather/s: Sport Kiss Dolphin Other Rebreather/s: Dolphin Join Date: Apr 2005 Location: SF, CA Posts: 114	Re: Lithium 9v battery? Quote: (Originally Posted by Underwaterbear) Hi Toren, Sounds to me like this idea should be filed under the heading: Probably will work but not terribly smart. I consider it fairly unlikely that the electronics cap will flood on the prism. However, should it ever do so in the ocean, and should there be a Li - ion battery in there it would short-circuit, rapidly discharge, overheat and possibly even ignite...all not very nice for the continued integrity of your unit and your diving pleasure. Not worth the proverbial 50cent part in my book. Cheers Andrew Hooray! An answer to my question!! Yes, that was my basic concern, as well as the fact that "9v" lithium batteries don't put out exactly 9v. I'll keep it around for the smoke detectors (love that 10 year shelf life) and get a pack of Duracells for the Topaz. Thanks, have a green blob! And one for webslave as well!
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24th February 2006, 01:39	#22 (permalink)
Kyza New Member Current Rebreather/s: Inspiration Classic Evolution Other Rebreather/s: Inspiration Classic Join Date: Dec 2005 Location: Cleveland Posts: 22	Re: Lithium 9v battery? One of the aspects of my job has me playing with 9 volt Lithium cells in wireless audio transmitters. These are at times exsposed to salt water, ( damn actors) and both 9 volt and electronics get drenched. I've never seen a Lithium 9 volt go up in smoke. However, it isn't in an O2 rich enviroment, the battery is removed usually within 5 mins although it has gone as long as half an hour, and I've never noticed the 9 volts to be hot. Lithium batts are used in other rebreathers, I have used lithium 9 volts in other dive equipment without problem.
(Offline)

24th February 2006, 01:54	#23 (permalink)
Underwaterbear A Prismer in Megland Current Rebreather/s: Prism Topaz Other Rebreather/s: Join Date: May 2005 Location: Seattle, WA Posts: 168	Re: Lithium 9v battery? Quote: (Originally Posted by Kyza) One of the aspects of my job has me playing with 9 volt Lithium cells in wireless audio transmitters. These are at times exsposed to salt water, ( damn actors) and both 9 volt and electronics get drenched. I've never seen a Lithium 9 volt go up in smoke. However, it isn't in an O2 rich enviroment, the battery is removed usually within 5 mins although it has gone as long as half an hour, and I've never noticed the 9 volts to be hot. Lithium batts are used in other rebreathers, I have used lithium 9 volts in other dive equipment without problem. Hey, fair enough, knock yourself out...you won't see me using them in my rebreather though. Take a look at the MSDS for Li-ion batteries here: link Here's the bit that gets my attention (especially if it should occur in a 1 atm housing, as is the case on a Prism) : SECTION VI- PRECAUTIONS FOR SAFE HANDLING AND USE Other Precautions: Batteries may explode or cause burns, if disassembled, crushed or exposed to fire or high temperatures. Do not short or install with incorrect polarity. All this is not to mention the nasty gases that would come out of these batteries if they were to rupture. This all leads to interesting discussions about just where the batteries should be ---> not inside the loop is a good start. Cheers
(Offline)

24th February 2006, 02:27	#24 (permalink)
Kyza New Member Current Rebreather/s: Inspiration Classic Evolution Other Rebreather/s: Inspiration Classic Join Date: Dec 2005 Location: Cleveland Posts: 22	Re: Lithium 9v battery? Yep, makes for good reading, but this spec sheet does look like its for rechargable cells and not one use sealed 9 volts that you get from Energizer etc. I take your point about not wanting it in a breathing loop, but my point was in all the times I've had salt water drenched 9 volts I've not had a problem with the cells doing anything nasty. Personaly I would not have a problem with the Medical Grade Lithium 9 volts sold by Energizer (L522) mixing with salt or fresh water.
(Offline)

24th February 2006, 03:46	#25 (permalink)
Toren In Rebreather holding pattern... Current Rebreather/s: Sport Kiss Dolphin Other Rebreather/s: Dolphin Join Date: Apr 2005 Location: SF, CA Posts: 114	Re: Lithium 9v battery? Quote: (Originally Posted by Kyza) Yep, makes for good reading, but this spec sheet does look like its for rechargable cells and not one use sealed 9 volts that you get from Energizer etc. I take your point about not wanting it in a breathing loop, but my point was in all the times I've had salt water drenched 9 volts I've not had a problem with the cells doing anything nasty. Personaly I would not have a problem with the Medical Grade Lithium 9 volts sold by Energizer (L522) mixing with salt or fresh water. Hmm. I'm going to make the experiment. I'm taking one with me to the Caymans next week, and I'll take it down 80 feet or so in a vacuum sealed package and then cut the sucker open. I'll report back on the results.
(Offline)

24th February 2006, 06:26	#26 (permalink)
Nick uk. Made in England. Current Rebreather/s: Inspiration Classic Azimuth Other Rebreather/s: Azimuth Join Date: Nov 2005 Location: Viale C.Colombo 75 Marina di Carrara. MS 54036 Italy Posts: 579	Re: Lithium 9v battery? The inspo keeps it's lithium batteries in the head (nice and humid) and right next to the solenoid! __________________ If it aint broke....don't fix it, and if it is.............well......get another one! divechief2000@hotmail.com
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24th February 2006, 07:26	#27 (permalink)
silent running Mature mouth breather Current Rebreather/s: Prism Topaz Other Rebreather/s: Join Date: Jun 2005 Location: U.S.A. Brooklyn, New York Posts: 1,777	Re: Lithium 9v battery? Quote: (Originally Posted by Nick uk.) The inspo keeps it's lithium batteries in the head (nice and humid) and right next to the solenoid! Hmmm, wonder what the PPLi is at 50 meters... Are there GAP tables for LithiOx? Sorry, couldn't resist... he he he -Andy
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24th February 2006, 10:25	#28 (permalink)
*Beanie* Politeness officer Current Rebreather/s: Inspiration Classic Other Rebreather/s: Inspiration Vision Join Date: Jan 2005 Location: In da house! yeah baby! Posts: 3,163	Re: Lithium 9v battery? Quote: (Originally Posted by silent running) Hmmm, wonder what the PPLi is at 50 meters... Are there GAP tables for LithiOx? Sorry, couldn't resist... he he he -Andy hmm could have some interesting effects __________________ Beanie Gallery Admin & Library Assistant. www.outlawdivers.org.uk www.beandiving.co.uk www.beanengineering.co.uk www.divelife.co.uk
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24th February 2006, 16:40	#29 (permalink)
apitkin New Member Current Rebreather/s: Prism Topaz Other Rebreather/s: Join Date: Feb 2005 Location: Cloud Cuckoo Land Posts: 97	Re: Lithium 9v battery? Quote: (Originally Posted by Beanie) hmm could have some interesting effects It's ideal for the manic-depressive diver. Now there's a whole new market for APD Andy
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24th February 2006, 16:45	#30 (permalink)
*caveseeker7* Who loves ya, baby Current Rebreather/s: Sport Kiss Other Rebreather/s: Prism Topaz Join Date: Jan 2005 Location: Too far from Neverland Posts: 5,325	Re: Lithium 9v battery? They created it, Andy. Waiting Vision Nitrox owners. __________________ Cheers Stefan "It is still a good day if you are on the green side of the grass! Su amigo Roberto!" Sponsor Lou in Race For Life!
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