[RE-wrenches] Passive Battery Venting

[Daniel Young]

I just re-read the original post Drake. These are AGM batteries. Do you have
a "belt, suspenders,...then a rocket pack" type of client here?

We typically vent our AGM boxes with small louver vents top and bottom to
allow the batteries to ventilate for cooling purposes, not H2 concerns.

With Regards,

Daniel Young, 
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
NABCEP Certified Solar Heating InstallerTM: Cert #SH031409-13

-----Original Message-----
From: RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] On
Behalf Of Ray Walters
Sent: Tuesday, October 28, 2014 11:12 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Passive Battery Venting

That's why we usually have the batteries in a garage, basement, or out
building that is not open to the living space.
I've seen some cases of very well sealed and insulated enclosures allowing
batteries to over heat, and also build up a lot of acid damaged connections.
Boxes I've seen with more air space and less sealing don't get this build
up, but you're correct: they do occasionally allow H2S into the surrounding
area.

R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760

On 10/28/2014 8:10 PM, Jerry Shafer wrote:
>
> We do what we can to seal the enclosure so if or when a battery fails 
> and really gasses off the two vents on the same wall regardless of 
> wind direction will vent the gas. If it is not sealed then the gas can 
> travel through out the area this is not advised.
>
>

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Version: 2012.0.2247 / Virus Database: 4031/7973 - Release Date: 10/29/14