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Old 06-19-2014, 09:28 PM   #1
Join Date: May 2013
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Auto Battery Liquid Filler

I am considering getting the pro fill battery fill system. I have two 6 volt coach batteries. The batteries sit side by side. Has anyone had any experience with this item? Has anyone had experience with two 6 volt batteries?

Any help and/or comments will be greatly appreciated. Thanks

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Old 06-19-2014, 09:40 PM   #2
"Formerly Diplomat Don"
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The ProFill battery watering system is one of the BEST products you'll buy for your RV. They're pricey, but well worth it. Every couple of months, I connect the bulb pump, put the other end in a jug of distilled water and within a couple of squeezes, I'm done and the batteries are properly filled.

Don & Mary
2014 Newmar Dutch Star - All Electric - 450 ISL
2016 GMC Canyon 4WD Crew Cab
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Old 06-19-2014, 09:50 PM   #3
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I have used mine for several year, yes pricey, would not consider a unit without a battery watering system.

Fred and Bonnie
2005 Dolphin LX 6375
Abby, Ruffles & Scarlett, "The Cats"
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Old 06-19-2014, 09:52 PM   #4
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I have one and love it. Having 6 batteries to fill makes it even better.
2015 Allegro Bus 45LP
2014 Phaeton 40KQH (sold)
2010 Allegro 35QBA (sold)
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Old 06-19-2014, 10:19 PM   #5
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Have one. It's great. Literally 30 seconds to fill the batteries. Takes longer to get out the bottle of distilled water and the bulb pump than to actually fill the batteries.
Vince and Susan
2011 Tiffin Phaeton 40QTH (Cummins ISC/Freightliner)
Flat towing a modified 2005 Jeep (Rubicon Wrangler)
Previously a 2002 Fleetwood Pace Arrow 37A and a 1995 Safari Trek 2830.
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Old 06-19-2014, 10:23 PM   #6
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Well worth it. I have 4 batteries to fill. Easy quick, fast, & clean.
2003 Fleetwood Discovery 38U
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Old 06-20-2014, 05:47 AM   #7
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Pricey?? A system serves two batteries and can be purchased for $50. The "pump" is $20. or less....
Hal & Ginny Miller '04 Beaver Santiam PRT40
'04 Saturn Vue - US Gear Brake - Blue Ox tow
3"girls" (2 Irish Setters - 1 Retriever) - RIP Annie & Emily (12/26/2017)
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Old 06-21-2014, 06:17 AM   #8
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As everyone else has said .Well worth the money.We just installed 6 new house batteries and 500 watts of solar,so the fill system is worth every $ when you have that many batteries. Go for it!
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Old 06-22-2014, 09:22 AM   #9
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Dumb question. I just bought the system but don't know how hard to squeeze the bulb. Do you squeeze until the water stops flowing? Can you overfill with this system?
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Old 06-22-2014, 03:41 PM   #10
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Auto Battery Liquid Filler

You squeeze until the bulb gets firm. Each cell has a float valve in them.
American Revolution 40L CAT C9
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Old 06-22-2014, 03:48 PM   #11
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I dunno...I don't mind filling by hand. I have 13 batteries on our boat and check them about every 3 months. While I'm filling, it gives me a chance to look around, wiggle connections, look for frayed wires etc. I have no problem the systems, but to me its just not that big of a deal to fill them. I use one of those battery fill bottles, like this:
Amazon.com: battery water filler bottle
It lets you know when each cell is full so no trying to look down into each cell.
Toni Froehling
2005 Country Coach Inspire 51431
Orting, WA
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Old 06-25-2014, 12:51 AM   #12
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Originally Posted by akeyzoo View Post
You squeeze until the bulb gets firm. Each cell has a float valve in them.
Tried it today with great success. I like the system.
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Old 06-25-2014, 02:09 AM   #13
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I have that system and I like it because it's so easy and quick to use. Best recommendation I can give it is that I would fit it again should I ever buy another RV.

Some people dislike this kind of method because of the risk of overfilling the batteries. This is something that potentially could happen if the non-return valves on the filler caps fail. I am not sure how much of a risk this is, and I have personally never heard or read of any such failures.

This subject came up in another thread only a few days ago, and one irv2 member posted a nice alternative to the easy filling method . If you have the room for it when refilling, this is also a good option.
The Great Dane
2007 Monaco Diplomat PAQ - 2007 Saturn Vue Honorary Texas Boomer
Living in Denmark - visiting the US whenever possible. www.winnebago.dk www.lasramblas.dk

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Old 06-25-2014, 05:45 AM   #14
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If you have more than 2 batteries, do you just have to buy more of the 2 battery systems or do they have extension kits for the additional batteries. If you are doing 6 batteries (2 systems) do they all interconnect so that you only have to connect the bulb and pump once?

Randy & Ella (terrier mix rescue)
2013 Tiffin Phaeton 40QBH
2014 Ford Edge
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