4th cell holder

John Langley · 7th March 2007, 18:44

Hi all
I have got my order in for a new Vision, and was thinking, after reading what Dave Sutton has to say about the 4th cell option, that it would be a good idea to get one.

My question is though, would fitting one invalidate any warranty from AP.

Regards

J.L.

decoweenie · 7th March 2007, 19:00

John,

I have a 4th cell connected to the Vision lid almost since day 1, and AFAIK, it doesn't invalidate the AP warranty.

**jepuskar** · 7th March 2007, 19:12

Let me inject some of my ignorance into this thread...

Installing a 4th cell would require a modification like narked at 90's 4th cell holder which replaces APD's cell holder. No matter how nice of a machined piece of equipment it very well may be...it's still not APD crafted and I can't see why APD would accept this as being ok...it is a modification to a crucial part of the rebreather...and to me it should void the warranty... However, weenie has probably sent his back to APD for service and hasnt had a problem.

Personally APD should just offer a 4th cell holder as an option.

again...just my ignant opinion

decoweenie · 7th March 2007, 19:54

Quote: (Originally Posted by jepuskar)

Let me inject some of my ignorance into this thread...

The option you listed isn't the only way to add a 4th cell.

As a matter of fact, it is the most recent way. There are other ways used for years that you don't need to replace any components made by AP.

John Langley · 7th March 2007, 19:54

All opinions greatly received, even ignorant ones

Regards

J.L.

**jepuskar** · 7th March 2007, 19:56

Mr Weenie....do you have links to the other ways? I only know of the most recent one...

decoweenie · 7th March 2007, 20:00

I have used both Y-adapter or hose-adapter on number of units.

**PhilSiswick** · 7th March 2007, 20:22

Quote: (Originally Posted by jepuskar)

Let me inject some of my ignorance into this thread...

Installing a 4th cell would require a modification like narked at 90's 4th cell holder which replaces APD's cell holder. No matter how nice of a machined piece of equipment it very well may be...it's still not APD crafted and I can't see why APD would accept this as being ok...it is a modification to a crucial part of the rebreather...and to me it should void the warranty... However, weenie has probably sent his back to APD for service and hasnt had a problem.

Personally APD should just offer a 4th cell holder as an option.

again...just my ignant opinion

Not sure why it should invalidate the warranty - just remove it and reinstate the APD one when returning the unit for service or warranty repair. Or am I missing something?

I've got a Narked@90 adaptor, but haven't installed it yet.

Cheers,

**Gill Envy** · 7th March 2007, 20:28

Quote: (Originally Posted by jepuskar)

Personally APD should just offer a 4th cell holder as an option.

Now wouldn't that be nice. Unfortunately it would require that they admit there might be a value in a totally isolated back up po2 computer, which goes against the premise of the one screened vision.

Since there are some common failure points with the two controllers and one screen, I think it's time that they simply embrace the idea of offering a fourth cell modification. While I believe the vision system is a great balance between redundancy (dual conctrollers/HUD/two battereis) and simplicity (one screen for primary monitoring) and therefor has broad appeal there are those folks out there (myself for one) who will want a fourth cell and independent po2/deco computer to round it out.

One simple fact clinches this one for me, the vision can't do a cold hand off from B1 to B2, it lacks provisions for rapid voltage drop/poor battery performance or B1 contact failure. It's still my favorite, but I am convinced of the merits of a totally separate back up.

So, can anyone put up some photos and links to the common 4th cell configurations?

narked at 90 · 7th March 2007, 21:23

If your worried about my cell holder invalidating your warranty just take it off before you send your unit back, it only takes a couple of minutes to do, or you could buy the really expensive one from Delta-P.
kind regards john

7th March 2007, 18:44	#1 (permalink)
John Langley New Member Current Rebreather/s: Inspiration Vision Other Rebreather/s: Not Bought Yet Classic Kiss Join Date: Apr 2005 Location: in an appartment on the 99th floor of my block Posts: 103	4th cell holder Hi all I have got my order in for a new Vision, and was thinking, after reading what Dave Sutton has to say about the 4th cell option, that it would be a good idea to get one. My question is though, would fitting one invalidate any warranty from AP. Regards J.L. __________________ BSAC 1620 www.aqualanddivers.co.uk www.oceandiving.co.uk Thank your mother for the dripping.
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7th March 2007, 19:00	#2 (permalink)
decoweenie Crash Test Dummy Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Feb 2005 Location: Cairo Posts: 5,487	Re: 4th cell holder John, I have a 4th cell connected to the Vision lid almost since day 1, and AFAIK, it doesn't invalidate the AP warranty. __________________ "...after a while you get bored offering advice to a bull that like to keep butting the fence with its head rather than walking through the open gate..." - Rebreather World PM
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7th March 2007, 19:12	#3 (permalink)
jepuskar NA Current Rebreather/s: Not Bought Yet Other Rebreather/s: Not Bought Yet Join Date: Aug 2005 Location: Chicago, IL Posts: 397	Re: 4th cell holder Let me inject some of my ignorance into this thread... Installing a 4th cell would require a modification like narked at 90's 4th cell holder which replaces APD's cell holder. No matter how nice of a machined piece of equipment it very well may be...it's still not APD crafted and I can't see why APD would accept this as being ok...it is a modification to a crucial part of the rebreather...and to me it should void the warranty... However, weenie has probably sent his back to APD for service and hasnt had a problem. Personally APD should just offer a 4th cell holder as an option. again...just my ignant opinion
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7th March 2007, 19:54	#4 (permalink)
decoweenie Crash Test Dummy Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Feb 2005 Location: Cairo Posts: 5,487	Re: 4th cell holder Quote: (Originally Posted by jepuskar) Let me inject some of my ignorance into this thread... The option you listed isn't the only way to add a 4th cell. As a matter of fact, it is the most recent way. There are other ways used for years that you don't need to replace any components made by AP. __________________ "...after a while you get bored offering advice to a bull that like to keep butting the fence with its head rather than walking through the open gate..." - Rebreather World PM
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7th March 2007, 19:54	#5 (permalink)
John Langley New Member Current Rebreather/s: Inspiration Vision Other Rebreather/s: Not Bought Yet Classic Kiss Join Date: Apr 2005 Location: in an appartment on the 99th floor of my block Posts: 103	Re: 4th cell holder All opinions greatly received, even ignorant ones Regards J.L. __________________ BSAC 1620 www.aqualanddivers.co.uk www.oceandiving.co.uk Thank your mother for the dripping.
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7th March 2007, 19:56	#6 (permalink)
jepuskar NA Current Rebreather/s: Not Bought Yet Other Rebreather/s: Not Bought Yet Join Date: Aug 2005 Location: Chicago, IL Posts: 397	Re: 4th cell holder Mr Weenie....do you have links to the other ways? I only know of the most recent one...
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7th March 2007, 20:00	#7 (permalink)
decoweenie Crash Test Dummy Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Feb 2005 Location: Cairo Posts: 5,487	Re: 4th cell holder I have used both Y-adapter or hose-adapter on number of units. __________________ "...after a while you get bored offering advice to a bull that like to keep butting the fence with its head rather than walking through the open gate..." - Rebreather World PM
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7th March 2007, 20:22	#8 (permalink)
PhilSiswick Phil Siswick, Tango Current Rebreather/s: Evolution Other Rebreather/s: Inspiration Vision Join Date: Apr 2006 Location: Oxford, UK Posts: 1,099	Re: 4th cell holder Quote: (Originally Posted by jepuskar) Let me inject some of my ignorance into this thread... Installing a 4th cell would require a modification like narked at 90's 4th cell holder which replaces APD's cell holder. No matter how nice of a machined piece of equipment it very well may be...it's still not APD crafted and I can't see why APD would accept this as being ok...it is a modification to a crucial part of the rebreather...and to me it should void the warranty... However, weenie has probably sent his back to APD for service and hasnt had a problem. Personally APD should just offer a 4th cell holder as an option. again...just my ignant opinion Not sure why it should invalidate the warranty - just remove it and reinstate the APD one when returning the unit for service or warranty repair. Or am I missing something? I've got a Narked@90 adaptor, but haven't installed it yet. Cheers, __________________ Phil (WSKD 0001) I have always felt that the dive I am on is not nearly important as the dives I plan to be on the rest of my life. Tom Rose, 2007 The person who gets the farthest is generally the one who is willing to do and dare. The sure thing boat never gets far from shore. Charles A. Lindbergh www.hugsac.org.uk
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7th March 2007, 20:28	#9 (permalink)
Gill Envy Shearwater Copis Divers Current Rebreather/s: Other CCR Other Rebreather/s: Evolution Other CCR Join Date: Nov 2005 Location: seattle Posts: 1,348	Re: 4th cell holder Quote: (Originally Posted by jepuskar) Personally APD should just offer a 4th cell holder as an option. Now wouldn't that be nice. Unfortunately it would require that they admit there might be a value in a totally isolated back up po2 computer, which goes against the premise of the one screened vision. Since there are some common failure points with the two controllers and one screen, I think it's time that they simply embrace the idea of offering a fourth cell modification. While I believe the vision system is a great balance between redundancy (dual conctrollers/HUD/two battereis) and simplicity (one screen for primary monitoring) and therefor has broad appeal there are those folks out there (myself for one) who will want a fourth cell and independent po2/deco computer to round it out. One simple fact clinches this one for me, the vision can't do a cold hand off from B1 to B2, it lacks provisions for rapid voltage drop/poor battery performance or B1 contact failure. It's still my favorite, but I am convinced of the merits of a totally separate back up. So, can anyone put up some photos and links to the common 4th cell configurations? __________________ Gill Envy ...Because I wasn't born with gills! ><(°>><(°>><(°>><(°>><(°>><(°>><(°>><(°> Last edited by Gill Envy : 7th March 2007 at 20:30.
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7th March 2007, 21:23	#10 (permalink)
narked at 90 John Routley Current Rebreather/s: Inspiration Classic Other CCR Dolphin Home Build Other Rebreather/s: Other CCR Dolphin Home Build Join Date: Feb 2005 Location: middlands uk Posts: 1,077	Re: 4th cell holder If your worried about my cell holder invalidating your warranty just take it off before you send your unit back, it only takes a couple of minutes to do, or you could buy the really expensive one from Delta-P. kind regards john __________________ *WWW.NARKEDAT90.CO.UK* *http://www.grpservices.com/pursuit/* Supporting Shearwater Research Products in Europe Narked at 90 Go Military
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