Automatic Battery Watering

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  • Zardiw
    Member
    • Nov 2015
    • 77

    #1

    Automatic Battery Watering

    Looking at a couple of systems. Flowright and BFS.........anybody have any experience with these systems? Are they worth having?

    Was thinking of doing the whole thing automatically with a sprinkler timer and a pond pump and a tank with distilled water.

    z
  • Mike90250
    Moderator
    • May 2009
    • 16020

    #2
    Do not automatically water batteries with a timer and water. It either wont water enough, or too much. Generally, the auto water systems are "engineered" so the easy failure points are fixed. The auto systems work fine on your cheap bank. Wait till you replace it with an expensive bank. then it breaks
    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

    • Sunking
      Solar Fanatic
      • Feb 2010
      • 23301

      #3
      Automatically? Does not work that way. You only add water when needed, and it is done manually. Watering systems does make it easy, but in no way does that mean automatic. You fill it manually using a tube connected to the water bottle via cap. Al the watering system does is distribute water to the cells evenly. Only thing automatic about it is the system levels them out.
      MSEE, PE

      Comment

      • Zardiw
        Member
        • Nov 2015
        • 77

        #4
        Originally posted by Sunking
        Automatically? Does not work that way. You only add water when needed, and it is done manually. Watering systems does make it easy, but in no way does that mean automatic. You fill it manually using a tube connected to the water bottle via cap. Al the watering system does is distribute water to the cells evenly. Only thing automatic about it is the system levels them out.
        Try Binging it buddy. There are several systems out there.....z

        Comment

        • Zardiw
          Member
          • Nov 2015
          • 77

          #5
          Originally posted by Mike90250
          Do not automatically water batteries with a timer and water. It either wont water enough, or too much. Generally, the auto water systems are "engineered" so the easy failure points are fixed. The auto systems work fine on your cheap bank. Wait till you replace it with an expensive bank. then it breaks
          You too........try Binging it...........And yeah I realize only a moron would actually try to hook hoses to the vent caps and set a timer to dump water into them.....lmao.....I am not such......lol..........z

          Comment

          • SunEagle
            Super Moderator
            • Oct 2012
            • 15151

            #6
            Originally posted by Zardiw

            You too........try Binging it...........And yeah I realize only a moron would actually try to hook hoses to the vent caps and set a timer to dump water into them.....lmao.....I am not such......lol..........z
            My you are thin skinned. Both Sunking and Mike were trying to help you. If you took their comments as condescending then maybe you are too easily offended.

            Comment

            • inetdog
              Super Moderator
              • May 2012
              • 9909

              #7
              Originally posted by Zardiw
              Looking at a couple of systems. Flowright and BFS.........anybody have any experience with these systems? Are they worth having?

              Was thinking of doing the whole thing automatically with a sprinkler timer and a pond pump and a tank with distilled water.

              z
              A system that would be able to work that way, unattended, would have to include a replacement vent cap with some sort of float valve to shut off the water fill when the electrolyte level reaches the target.
              Given that, it will probably make it a lot harder to get at each cell for an SG measurement with a hydrometer, which you should be doing on at least one cell per battery on a regular basis.
              Which is going to be more inconvenient for you?
              SunnyBoy 3000 US, 18 BP Solar 175B panels.

              Comment

              • Logan005
                Solar Fanatic
                • Nov 2015
                • 490

                #8
                The auto battery watering systems I have seen have special caps, and are gravity fed so they can only maintain the specified level of liquid. I have plans to deploy such system when I get my L16's
                4X Suniva 250 watt, 8X t-105, OB Fx80, dc4812vrf

                Comment

                • Sunking
                  Solar Fanatic
                  • Feb 2010
                  • 23301

                  #9
                  Originally posted by Zardiw
                  Try Binging it buddy. There are several systems out there.....z
                  I have used several of them, and they do not work automatically as you put it.
                  MSEE, PE

                  Comment

                  • Logan005
                    Solar Fanatic
                    • Nov 2015
                    • 490

                    #10
                    so, not really worth it. or is it easier to keep track and add distilled , but requires oversight? please share your experience, I truly want to know your opinion. since a 24 cell set up is pricey and if they are prone to fail.
                    4X Suniva 250 watt, 8X t-105, OB Fx80, dc4812vrf

                    Comment

                    • Mike90250
                      Moderator
                      • May 2009
                      • 16020

                      #11
                      Originally posted by Zardiw
                      ......Was thinking of doing the whole thing automatically with a sprinkler timer and a pond pump and a tank with distilled water.z
                      EXACTLY what the OP is thinking of. You get a time out.

                      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

                      • Sunking
                        Solar Fanatic
                        • Feb 2010
                        • 23301

                        #12
                        Originally posted by Logan005
                        so, not really worth it. or is it easier to keep track and add distilled , but requires oversight? please share your experience, I truly want to know your opinion. since a 24 cell set up is pricey and if they are prone to fail.
                        I know lots of people who use them, most of them Golf Cart owners. They are also called Single Point Watering. It requires either buying a battery with the Caps as part of the battery purchase, or an after market battery cap. Example is Trojan Hydro Link, or after market Pro-Fill are two I am familiar with. All of them to my knowledge work the same. They use a Float Valve similar to that of a toilet.

                        Each battery cap is interconnected by a fill tube. Easy way to use them is with a plastic 1-gallon jug of distilled water and using gravity. Water flows through the tube filling low cells. When the float valve in a cell if full the valve seats and stops water flow.

                        Are they handy? Heck yeah they are. It can make a 30 minute job a 1 minute job. Do they have known problem? Yes, stuck valves is common sticking closed so a cell does not receive water but is an easy fix. The other failure which is kind of a big deal is the valves sticking open. This will allow electrolyte to be siphoned off by adjacent cells. Once you remove acid from a battery, it cannot be replaced easily.

                        All in all I think they are a good product. But there is nothing Automatic about it. It requires you to monitor water level, and add water as needed. When needed you connect the water bottle or jug, elevate it above the batteries, and open the valve. Each of the battery caps has a full indicator. When you see all Indicators, close the valve and put the water away until you need it again. It is a manual operation. It makes it very easy for you to water your batteries and less inclined to put t off because of the mess and time required. Many a Golf Courses use them on their fleet of carts. Saves them big bucks on labor and battery life.
                        Last edited by Sunking; 03-18-2016, 11:08 PM.
                        MSEE, PE

                        Comment

                        • Zardiw
                          Member
                          • Nov 2015
                          • 77

                          #13
                          Thank you for all the responses!!!.......Now if the float valves were a bit more reliable, it would be perfect.

                          And also you would have to do it when the batteries are fully charged of course.

                          z

                          Comment

                          • Sunking
                            Solar Fanatic
                            • Feb 2010
                            • 23301

                            #14
                            Originally posted by Zardiw
                            Thank you for all the responses!!!.......Now if the float valves were a bit more reliable,
                            Honestly the sticking float valves are not a big issue. Really easy to tell and fix.

                            MSEE, PE

                            Comment

                            • inetdog
                              Super Moderator
                              • May 2012
                              • 9909

                              #15
                              Originally posted by Sunking

                              Honestly the sticking float valves are not a big issue. Really easy to tell and fix.
                              Do you find it a hassle to remove those filler caps to manually check level and to stick in a hydrometer to measure SG?
                              Do you recommend only routinely measuring SG on the most accessible cell of each battery?
                              SunnyBoy 3000 US, 18 BP Solar 175B panels.

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