Hammerhead Battery Testing -split from new sets announcement

adrenalin_junkie · 26th November 2007, 11:24

Quote: (Originally Posted by heyydude)

Nope. Just let the unit fire the Solenoid over and over. That'll give you a "worst-case" scenario for battery life. That's what we do here in the shop, anyway...

Kevin.

Heydude, I understand now.....don't connect the unit/head up, just leave the head in "air" so the solenoid keeps firing with the handsets placed in cold water

jhaaja · 28th November 2007, 18:36

I have a test running as we speak. The primary is powered with Energizer 1,5V AA lithium and the secondary by Duracell Procell 1,5V AA.

The head is open and now actual O2 is fed to the solenoid. The handsets are submerged in water ica-cubes mix, water temp tropical ~3 Celsius. Lets see how long it will run...

***jradomski*** · 28th November 2007, 18:50

Quote: (Originally Posted by jhaaja)

I have a test running as we speak. The primary is powered with Energizer 1,5V AA lithium and the secondary by Duracell Procell 1,5V AA.

The head is open and now actual O2 is fed to the solenoid. The handsets are submerged in water ica-cubes mix, water temp tropical ~3 Celsius. Lets see how long it will run...

That will give you a reasonable worse (well almost) case max run time... but also rember there will be a period that if the backlight is NOT activated the system will run fine, but there is an overlap that if both the solenoid fires at the same time the BL is on, the system may not be able to deliever enough current and the handset will reboot.. There is no easy way to test that..

jhaaja · 28th November 2007, 18:52

Quote: (Originally Posted by jradomski)

That will give you a reasonable worse (well almost) case max run time... but also rember there will be a period that if the backlight is NOT activated the system will run fine, but there is an overlap that if both the solenoid fires at the same time the BL is on, the system may not be able to deliever enough current and the handset will reboot.. There is no easy way to test that..

I will go push the button now and then. How does it affect on the solenoid that there is no O2 pressure to it? I guess it is not taking as much power with O2 pressure?

***jradomski*** · 28th November 2007, 18:57

Quote: (Originally Posted by jhaaja)

I will go push the button now and then. How does it affect on the solenoid that there is no O2 pressure to it? I guess it is not taking as much power with O2 pressure?

the higher the IP the greater the current draw.. so without any pressur e on it it wount draw as much as in real life, however, the way the unit is working now, its probably firing 3 seconds on 3 seconds off and repeating.. this is alot more on time that would ever happen.. in reality most of the time it should only be on for about 2 seconds every minute..

jhaaja · 28th November 2007, 19:01

Yep, it is open 3s and closed 3s. 60mins and counting, 1,3V on primary and 1,4V on secondary...

Now 4h, 1,3V on primary and 1,2V on secondary. If I press the button on the primary while solenoid is open the voltage drops to 1,2 for a while.

jhaaja · 29th November 2007, 07:03

Mods, would you be so kind an move this battery testing discussion to its own thread?

JH

jhaaja · 29th November 2007, 14:24

So I had to stop the test at 4 hours RT, had to go to sleep. The battery was still working fine. I will give the same tested battery a real life dive test next weekend. It is promisinf nice diving weather, -8C and warm water

JH

decoweenie · 29th November 2007, 14:34

Quote: (Originally Posted by jhaaja)

...It is promisinf nice diving weather, -8C and warm water

Define "warm" in that context ?

Don't you mean just warmER than -8C...

Jeez, give me chills just thinking about it before I go diving tomorrow in my Winter "cold" 20C water (on bottom)... Grass is greener on this side...

***jradomski*** · 29th November 2007, 14:40

Quote: (Originally Posted by jhaaja)

Yep, it is open 3s and closed 3s. 60mins and counting, 1,3V on primary and 1,4V on secondary...

Now 4h, 1,3V on primary and 1,2V on secondary. If I press the button on the primary while solenoid is open the voltage drops to 1,2 for a while.

what did the battery on the prmary start at??

26th November 2007, 11:24	#1 (permalink)
adrenalin_junkie Custom Title Allowed! Current Rebreather/s: Inspiration Vision Other Rebreather/s: Inspiration Classic Join Date: Mar 2007 Location: BIRMINGHAM ENGLAND Posts: 110	Hammerhead Battery Testing -split from new sets announcement Quote: (Originally Posted by heyydude) Nope. Just let the unit fire the Solenoid over and over. That'll give you a "worst-case" scenario for battery life. That's what we do here in the shop, anyway... Kevin. Heydude, I understand now.....don't connect the unit/head up, just leave the head in "air" so the solenoid keeps firing with the handsets placed in cold water
(Offline)

28th November 2007, 18:50	#3 (permalink)
*jradomski* Moderator Current Rebreather/s: Inspiration Classic Sport Kiss Optima rEvo Other CCR Other Rebreather/s: Inspiration Vision Evolution Megalodon Classic Kiss rEvo Other CCR Join Date: Mar 2005 Location: "Da" Bronx Posts: 3,113	Re: New Hammerhead Sets - Announcement Quote: (Originally Posted by jhaaja) I have a test running as we speak. The primary is powered with Energizer 1,5V AA lithium and the secondary by Duracell Procell 1,5V AA. The head is open and now actual O2 is fed to the solenoid. The handsets are submerged in water ica-cubes mix, water temp tropical ~3 Celsius. Lets see how long it will run... That will give you a reasonable worse (well almost) case max run time... but also rember there will be a period that if the backlight is NOT activated the system will run fine, but there is an overlap that if both the solenoid fires at the same time the BL is on, the system may not be able to deliever enough current and the handset will reboot.. There is no easy way to test that.. __________________ Joe Radomski CCR Trimix Instructor Trainer ANDI Instructor Trainer Director #10 All posts are personal opinions and DO NOT reflect any affiliated agency unless specifically stated.
(Offline)

28th November 2007, 18:52	#4 (permalink)
jhaaja Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Mar 2005 Location: Finland Posts: 885	Re: New Hammerhead Sets - Announcement Quote: (Originally Posted by jradomski) That will give you a reasonable worse (well almost) case max run time... but also rember there will be a period that if the backlight is NOT activated the system will run fine, but there is an overlap that if both the solenoid fires at the same time the BL is on, the system may not be able to deliever enough current and the handset will reboot.. There is no easy way to test that.. I will go push the button now and then. How does it affect on the solenoid that there is no O2 pressure to it? I guess it is not taking as much power with O2 pressure?
(Offline)

28th November 2007, 18:57	#5 (permalink)
*jradomski* Moderator Current Rebreather/s: Inspiration Classic Sport Kiss Optima rEvo Other CCR Other Rebreather/s: Inspiration Vision Evolution Megalodon Classic Kiss rEvo Other CCR Join Date: Mar 2005 Location: "Da" Bronx Posts: 3,113	Re: New Hammerhead Sets - Announcement Quote: (Originally Posted by jhaaja) I will go push the button now and then. How does it affect on the solenoid that there is no O2 pressure to it? I guess it is not taking as much power with O2 pressure? the higher the IP the greater the current draw.. so without any pressur e on it it wount draw as much as in real life, however, the way the unit is working now, its probably firing 3 seconds on 3 seconds off and repeating.. this is alot more on time that would ever happen.. in reality most of the time it should only be on for about 2 seconds every minute.. __________________ Joe Radomski CCR Trimix Instructor Trainer ANDI Instructor Trainer Director #10 All posts are personal opinions and DO NOT reflect any affiliated agency unless specifically stated.
(Offline)

28th November 2007, 19:01	#6 (permalink)
jhaaja Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Mar 2005 Location: Finland Posts: 885	Re: New Hammerhead Sets - Announcement Yep, it is open 3s and closed 3s. 60mins and counting, 1,3V on primary and 1,4V on secondary... Now 4h, 1,3V on primary and 1,2V on secondary. If I press the button on the primary while solenoid is open the voltage drops to 1,2 for a while. Last edited by jhaaja : 28th November 2007 at 21:58.
(Offline)

29th November 2007, 07:03	#7 (permalink)
jhaaja Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Mar 2005 Location: Finland Posts: 885	Re: New Hammerhead Sets - Announcement Mods, would you be so kind an move this battery testing discussion to its own thread? JH
(Offline)

29th November 2007, 14:24	#8 (permalink)
jhaaja Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Mar 2005 Location: Finland Posts: 885	Re: Hammerhead Battery Testing -split from new sets announcement So I had to stop the test at 4 hours RT, had to go to sleep. The battery was still working fine. I will give the same tested battery a real life dive test next weekend. It is promisinf nice diving weather, -8C and warm water JH
(Offline)

29th November 2007, 14:34	#9 (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: Hammerhead Battery Testing -split from new sets announcement Quote: (Originally Posted by jhaaja) ...It is promisinf nice diving weather, -8C and warm water Define "warm" in that context ? Don't you mean just warmER than -8C... Jeez, give me chills just thinking about it before I go diving tomorrow in my Winter "cold" 20C water (on bottom)... Grass is greener on this side...
(Offline)

29th November 2007, 14:40	#10 (permalink)
*jradomski* Moderator Current Rebreather/s: Inspiration Classic Sport Kiss Optima rEvo Other CCR Other Rebreather/s: Inspiration Vision Evolution Megalodon Classic Kiss rEvo Other CCR Join Date: Mar 2005 Location: "Da" Bronx Posts: 3,113	Re: New Hammerhead Sets - Announcement Quote: (Originally Posted by jhaaja) Yep, it is open 3s and closed 3s. 60mins and counting, 1,3V on primary and 1,4V on secondary... Now 4h, 1,3V on primary and 1,2V on secondary. If I press the button on the primary while solenoid is open the voltage drops to 1,2 for a while. what did the battery on the prmary start at?? __________________ Joe Radomski CCR Trimix Instructor Trainer ANDI Instructor Trainer Director #10 All posts are personal opinions and DO NOT reflect any affiliated agency unless specifically stated.
(Offline)

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode