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Old 15th October 2008, 02:56 AM   #1
diyAudio Member
Join Date: Sep 2006
Default hydrogen gas from sealed batteries?

hi guys. I'm gonna be using a cascade DC power supply to run my car amps in my home. I really want to use a good battery with it to handle the transient surges. I figured I could use a sealed battery, till someone told me they still release hydrogen gas, just alot less than a regular battery. now I don't know. how bout you guys?

Ideas, suggestions. please and thank you.

or how about dry cells. maybe this one.


would this be safe in a home?

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Old 15th October 2008, 03:30 AM   #2
diyAudio Member
Join Date: Mar 2007
Location: Canandaigua, NY USA
Gel cells are used indoors for emergency lighting, UPS systems and such with no problems. I wouldn't use a car battery, sealed or otherwise indoors. Not only is there the hydrogen problem, but I'd worry about corrosive vapors, especially if overcharged. IMO, batteries aren't as good as a conventional power supply with lots of storage capacitance in terms of noise and stability.
I may be barking up the wrong tree, but at least I'm barking!
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Old 20th October 2008, 04:14 AM   #3
jol50 is offline jol50  United States
diyAudio Member
Join Date: Nov 2007
I have a car jump start box someone gave me with broken clamps. I took the battery out and it sure looks like a sealed gel battery, though I was thinking of mounting it near my car amp in the trunk. Can buy jumpers here for $30 last time I looked, this one is just a cheap one. Is smaller than a car battery of course.
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Old 21st October 2008, 02:04 AM   #4
diyAudio Member
Join Date: Sep 2006
so I learned all lead acid batteries (wet cell, gel cell, absorbed glass mat) can "gas" but you never really know if they will/are for sure.

they shouldn't during normal charging, and can during over charging. clear as mud right!



thanks for your ideas guys. I may look into this a bit more, but I think I'll pry go with out the battery. I'm sure they would be fine. but I don't want to find out the hard way.

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