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How to vent FLA gasses in aluminium storage box on camper?

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  • How to vent FLA gasses in aluminium storage box on camper?

    I have an aluminium storage box that sits on the rear of camper trailer A frame, it houses two AGM 120AH batteries with AC, mppt & inverter etc. It stays dry inside in the rain & so there can't be any venting holes on top. The box measures roughly L-150cm H-60cm W-60cm

    I wan't to replace the AGMs with 4X 6V Trojan T105 FLA inside for 12V 450AH. How would I go about venting the hydrogen & corrosive fumes? As I understand the corrosive gasses can harm electronics too.

    Can this be done with two side openings using two 14cm PC case fans? If not what other ways to vent?

    thanks

  • #2
    Sounds like you have a plan to vent it, all you need is some louvered vent covers which you can probably find at a home center or boating supply
    9 kW solar. Driving EVs since 2012

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    • #3
      Place them up high, the louvered vents that is, out of harm's way and create some intake holes in the bottom of the box. Really don't think you need powered fans.
      2.2kw Suntech mono, Classic 200, NEW Trace SW4024

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      • #4
        Set up all the passive vent holes and then, spray the inside with asphalt undercoat spray, to seal the aluminum from the fumes. (or Rhino liner or something like that, but not rattle can spray paint)
        Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
        || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
        || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

        solar: http://tinyurl.com/LMR-Solar
        gen: http://tinyurl.com/LMR-Lister

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        • #5
          One thing you can use is Randolph 345 battery box paint, available at Aircraft Spruce, Sky Geek and others. It's made for battery boxes, less than $20/quart, acid-proof and seals joints and seams. I've used it for years on aircraft batteries, it holds up well. It goes on like thin tar, and dries glossy and pliable but not sticky.

          https://www.aircraftspruce.com/catal...yABEgJ8SvD_BwE
          Last edited by sdold; 01-24-2019, 10:07 PM. Reason: Added link

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          • #6
            Originally posted by sdold View Post
            One thing you can use is Randolph 345 battery box paint, available at Aircraft Spruce, Sky Geek and others. It's made for battery boxes, less than $20/quart, acid-proof and seals joints and seams. I've used it for years on aircraft batteries, it holds up well. It goes on like thin tar, and dries glossy and pliable but not sticky.

            https://www.aircraftspruce.com/catal...yABEgJ8SvD_BwE
            Even better than undercoating !!
            Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
            || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
            || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

            solar: http://tinyurl.com/LMR-Solar
            gen: http://tinyurl.com/LMR-Lister

            Comment


            • #7
              Originally posted by Mike90250 View Post
              Set up all the passive vent holes and then, spray the inside with asphalt undercoat spray, to seal the aluminum from the fumes. (or Rhino liner or something like that, but not rattle can spray paint)
              What about Performix Plasti Dip? Easy to get over others for me.

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              • #8
                Originally posted by Jman View Post

                What about Performix Plasti Dip? Easy to get over others for me.
                Try it and report back in 3 years
                Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
                || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
                || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

                solar: http://tinyurl.com/LMR-Solar
                gen: http://tinyurl.com/LMR-Lister

                Comment

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