Having witnessed the aftermath of others who have installed batteries by bolting brackets to wood stud walls, my advice is do not do it! You reinforce the structure prior to mounting the batteries but failing to do could result in a catastrophic failure. When in doubt consult with your friendly local engineer who can properly evaluate your plans.
From: RE-wrenches <re-wrenches-boun...@lists.re-wrenches.org> On Behalf Of James Jarvis via RE-wrenches Sent: Tuesday, September 6, 2022 9:38 AM To: RE-wrenches <re-wrenches@lists.re-wrenches.org> Cc: James Jarvis <j...@aprsworld.com> Subject: Re: [RE-wrenches] Discover AES Wall Mount Considerations Buckling of the wall studs is most likely going to be the failure mode. You can use WebStructural to look at different designs. You'll find that accurately defining the constraints on the structural members is the most troublesome. https://webstructural.com/ Personally, I don't think that supporting a couple of thousand pounds of dead load hanging off the sides of $2 studs fastened with unknown fasteners into unknown top and bottom plates is a super great idea. I would do it on a poured concrete wall, but this sounds like it is asking for trouble. -James Jefferson Jarvis APRS World, LLC +1-507-454-2727 http://www.aprsworld.com/ On Tue, Sep 6, 2022 at 9:30 AM Jason Szumlanski via RE-wrenches <re-wrenches@lists.re-wrenches.org<mailto:re-wrenches@lists.re-wrenches.org>> wrote: 2x4 studs have compressive force to hold up over 1,000 pounds each when constructing a load bearing wall, so I don't think that is a limiting factor. But I am not a structural engineer, so consulting one would not be a bad idea. Jason On Tue, Sep 6, 2022, 10:21 AM Chris Sparadeo <sparadeo.ch...@gmail.com<mailto:sparadeo.ch...@gmail.com>> wrote: Thanks Jason, I’m still wondering if there is an IBC reference for weight. The Discover manual only states: “ For structural and seismic stability, the AES Battery must be mounted onto a vertical supporting surface strong enough to support a minimum of 227 kg (500 lbs) per battery. Failure to follow these instructions can result in death or serious injury.” Other than asking a structural engineer, how can I be sure that the wall is rated to 4,500 lbs? On Tue, Sep 6, 2022 at 9:20 AM Jason Szumlanski via RE-wrenches <re-wrenches@lists.re-wrenches.org<mailto:re-wrenches@lists.re-wrenches.org>> wrote: That won't be a problem as long as they are spread across several studs. Even 2x4 studs would be fine. Check the installation manual for details. The shear and pull out strength of the fasteners will be the limiting factor, not the wall itself unless very poorly constructed. https://assets.discoverbattery.com/documents/03_aes/805_product_manual/gui-aes-wall-mount-bracket-installation-guide.pdf Jason Szumlanski Florida Solar Design Group On Tue, Sep 6, 2022, 8:59 AM Chris Sparadeo via RE-wrenches <re-wrenches@lists.re-wrenches.org<mailto:re-wrenches@lists.re-wrenches.org>> wrote: Hi all, I have a project where I am contemplating hanging 9 Discover AES batteries on a wall. Each battery is around 200 lbs, and although the stud wall is a bulky 2”x6” with 16” OC…I have apprehensions that hanging almost a ton of battery on the wall is a good idea. I’ve seen it done in other install photos, however I can’t seem to find and good building code that would inform my decision. Does anyone out there have a building code reference or experience that might help? Thanks! -Chris -- Chris Sparadeo C_802-369-4458 H_802-728-3059 _______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org<mailto:RE-wrenches@lists.re-wrenches.org> Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org _______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org<mailto:RE-wrenches@lists.re-wrenches.org> Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org -- Chris Sparadeo C_802-369-4458 H_802-728-3059 _______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org<mailto:RE-wrenches@lists.re-wrenches.org> Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. 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