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Old 03-03-2014, 10:08 AM   #1
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Flow-Rite Profill RV-2000 Experiences?

i saw this battery filling device at the RV dealer. Its made especially for golf cart batteries and is sold in pairs. The device replaces the battery caps and provides a central point for adding distilled water to the cells. Each cell has an automatic shutoff to prevent over filling.

Does anyone have any experience with these devices? They are less than $50 per pair at Amazon, and I think I would really like the overfill prevention feature.
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Old 03-03-2014, 10:43 AM   #2
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We have these and it's probably one of the best values out there for RVers. It makes filling your batteries easy and you don't even have to pull the tray out to get to them - just hook up the hose. I bought two sets and connected them so that I can do my four batteries at the same time. Be sure to buy the hand pump also as you definitely need that too. I put mineral oil in the batteries when I installed the system and it eliminated gas escaping in corroding things in the battery compartment as well as decreasing the amount of fluid that escapes the cells. You can't go wrong with this product.
Happy Trails
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Old 03-03-2014, 10:43 AM   #3
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Absolutely super. When we used wet cell batteries, these were the first thing I installed. Not only does it allow filling without the usual turkey baster in one hand, flashlight in the second and mirror in the third.....or ..er? The unit also seals the battery tops so the outgassing doesn't corrode the areas around the batteries. Since we now use Lifeline AGM's we no longer use these.
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Old 03-03-2014, 10:57 AM   #4
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Works very good, easy to keep the level up especially if your batteries are hard to get at.

Chuck
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Old 03-03-2014, 10:59 AM   #5
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Personally, I don't see the advantage to spending money on this gizmo to do something that takes me a couple of minutes to do once a year or so. The big thing is to check the Converter Output Voltage and make sure your battery voltage does not exceed 13.7 VDC. After adding mineral oil to the cells, my battery maintenance is minimal.
Caution Note:
If you are going to purchase one of these, make sure it is compatable with your batteries. They Do Not work on all makes.
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Old 03-03-2014, 05:13 PM   #6
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I've used it for the past three seasons. I recently encountered something that I wasn't anticipating.

I went to water the batteries and couldn't get it to take any water. Closer inspection revealed that the female end of the filler hose would not accept the male end. The male end has a plunger on it that allows water to go into the batteries when depressed. It also has to depress to fit in the female connector properly. That plunger was immovable on mine. I had a spare, so I swapped it out and all is good.

I don't know for certain this happened, but it appeared to me that water in the filler hose had frozen, expanded, and destroyed the functionality of the plunger.

That caused me to wonder, is the water in the hose system that's not in the battery able to freeze? I subsequently removed the filler hose, drained it, and put it back on the battery bank.
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Old 03-03-2014, 05:22 PM   #7
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I don't know for certain this happened, but it appeared to me that water in the filler hose had frozen, expanded, and destroyed the functionality of the plunger.

That caused me to wonder, is the water in the hose system that's not in the battery able to freeze? I subsequently removed the filler hose, drained it, and put it back on the battery bank.[/QUOTE]

As I said, more trouble than its worth.
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Old 03-03-2014, 07:36 PM   #8
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My batteries are not on a tray and are therefore a challenge to check and fill. These work great. Check Amazon for pricing.
Don't forget the pump.
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Old 03-03-2014, 07:41 PM   #9
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I am with you Dennis45, added 3 oz mineral oil to each cell and check every 3 months.
The mineral oil will do more to last the batteries longer and let less harmful gas escape to damage the battery box. Owners should inspect the batteries and the battery box and connections on a regular basis and checking the water level is a good time to do all of this.
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Old 03-03-2014, 07:51 PM   #10
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I guess you would need to take some of the water out of each cell to add the 3 oz's of mineral oil,hows the best way to do that.
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Old 03-03-2014, 09:30 PM   #11
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ProjectPro.......I put this watering system on my last coach and ordered it for my new coach before we even took delivery.

I can't believe someone calling this system a gizmo or gimmick....I guess if you enjoy pulling all of your battery caps, fighting around the cables and looking into each hole to see how much water they need, plus fiddling with trying to get the right amount of water in them effortless, then they must also like root canals.

I'll also call bull on anyone who says they only check their batteries once a year. I'm sure that is true if you park the coach with everything turned off for a year. We use our coach all the time, I have a DRY, ACID FREE, battery bay with my Magnum Inverter/Charger set correctly, and my 6 batteries need water every couple of months.

I would also challenge anyone to take a couple of minutes to remove 12-18 battery caps (4-6 six volt batteries), inspect and fill with water, but I can with my ProFill water system. I keep a quart of distilled water in the battery bay and I just connect the bulb to the hose and stick the hose in the distilled water. About three squeezes and I'm done.
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Old 03-03-2014, 09:40 PM   #12
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Sure looks like money well spent to me
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Old 03-03-2014, 09:58 PM   #13
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Absolutely love it.

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Old 03-03-2014, 11:22 PM   #14
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I have the Pro-Fill system and I love it. Besides the convenience of filling all batteries at once, it virtually eliminates battery terminal and cable corrosion. My RV is always plugged in, so I top off the batteries once a month.

As far as adding mineral oil is concerned, I have never done this as I don't know of a single battery manufacturer that recommends it. There was also a recent write up in MH magazine, warning readers against doing this.

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