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12-10-2014, 05:12 PM
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#1
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Senior Member
Join Date: Dec 2014
Location: Big Rock, IL
Posts: 112
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Battery Caps
Does anyone have experience with "water miser" battery caps? They are supposed to reduce water evaporation and the green/blue salts on the positive terminals.
Greg
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12-10-2014, 05:29 PM
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#2
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Senior Member
Newmar Owners Club Spartan Chassis
Join Date: Oct 2010
Location: Lake Havasu City, AZ
Posts: 1,711
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Quote:
Originally Posted by gjbeels
Does anyone have experience with "water miser" battery caps? They are supposed to reduce water evaporation and the green/blue salts on the positive terminals.
Greg
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Yes and they work as advertised. I installed these back in February and I have not had to add any water and my battery compartment stays much cleaner!....
__________________
2019 Newmar Dutch Star 4328 K2
2017 Grand Cherokee Summit 5.7
2008 Beaver Contessa 40' Pacifica 425 Cat
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12-10-2014, 05:35 PM
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#3
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Senior Member
Winnebago Owners Club
Join Date: Jun 2013
Location: Full-timer/volunteer w/SOWERS
Posts: 3,958
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Quote:
Originally Posted by gjbeels
Does anyone have experience with "water miser" battery caps? They are supposed to reduce water evaporation and the green/blue salts on the positive terminals.
Greg
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Hi Greg. Have you considered a much cheaper rout with mineral oil? Mineral oil is a old maintenance trick used by Edison way back when and is still a great choice today. The oil floats on the electrolyte in each cell and keeps the caustic gasses in check. Those of us who use this method swear by it. Evaporation is greatly reduced and so is the 'normally' found white power on the terminals and connections.
It costs about $2 for a pint at the pharmacy. It is with the laxatives ( ). A oz or so is added to each cell AFTER the water is topped off.
This method WILL NOT harm your batteries in any way.
Rick Y
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Rick & Melissa Young, 2011 Itasca Meridian 40U, Frtliner XCL, Cummins ISL 380HP/DEF, Allison 3000 MH, 2014 Honda CR-V, SMI AF1, Blue Ox, EEZ TPMS, TruCenter steering control
Servants On Wheels Ever Ready. Best job we ever paid to do . (full time volunteers)
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12-10-2014, 05:36 PM
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#4
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Senior Member
Monaco Owners Club Texas Boomers Club
Join Date: Feb 2008
Location: Denmark and Spain
Posts: 2,030
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Quote:
Originally Posted by tankcj
Yes and they work as advertised. I installed these back in February and I have not had to add any water and my battery compartment stays much cleaner!....
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This is exactly what I have experienced. I think that the product is excellent.
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The Great Dane
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12-10-2014, 06:34 PM
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#5
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"Formerly Diplomat Don"
Newmar Owners Club
Join Date: Apr 2005
Location: Moorpark, Ca.
Posts: 23,922
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I did battery caps years ago, but would recommend skipping then and going with the FlowRite automatic battery watering system. It's pricey, about $160.00, but it will seal your system, cut back on water and make servicing your batteries a 5 minute job.
The automatic watering system is one of the BEST products you can buy for an RV.
__________________
Don & Mary
2019 Newmar Dutch Star 4018 (Freightliner)
2019 Ford Raptor
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12-11-2014, 12:57 AM
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#6
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Senior Member
Join Date: Jul 2011
Posts: 277
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The PO of our coach installed the water misers. They looked nice, but as the batteries aged they did not control the corrosion nor water loss. When we replaced the batteries, we installed a watering system. I don't recall the cost, something that happens when we are very happy with the purchase. Over time the initial cost is irrelevant. We have four batteries and filling them is as DutchStar Don says, just a 5 minute job.
__________________
07 Newmar VTDP 3330
02 Kaw Vulcan Nomad 1500 on CruiserLift
16 GMC Acadia w/Air Force One & Blue Ox Avail
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12-11-2014, 01:06 AM
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#7
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Senior Member
Join Date: Jul 2011
Posts: 277
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Trojan batteries with watering system
__________________
07 Newmar VTDP 3330
02 Kaw Vulcan Nomad 1500 on CruiserLift
16 GMC Acadia w/Air Force One & Blue Ox Avail
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12-11-2014, 10:03 AM
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#8
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Senior Member
Newmar Owners Club
Join Date: Oct 2011
Location: On the road.
Posts: 1,432
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Quote:
Originally Posted by Dutch Star Don
I did battery caps years ago, but would recommend skipping then and going with the FlowRite automatic battery watering system. It's pricey, about $160.00, but it will seal your system, cut back on water and make servicing your batteries a 5 minute job.
The automatic watering system is one of the BEST products you can buy for an RV.
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Would I be wrong in saying that I would need to remove the system in October and reinstall in April as I live in Michigan. In other words, will the system freeze in sub-freezing temps we have for a 6 months?
__________________
John & Diann
2014 Dutch Star 4364
2016 Ford Edge Sport
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12-11-2014, 10:15 AM
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#9
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Senior Member
Join Date: Nov 2008
Location: Cosby, Tn
Posts: 6,587
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Quote:
Originally Posted by JohnT
Would I be wrong in saying that I would need to remove the system in October and reinstall in April as I live in Michigan. In other words, will the system freeze in sub-freezing temps we have for a 6 months?
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Mine have been installed for 10 years and were on the batteries last winter in zero degree conditions. We are full timers and were living in the coach at the time.
Steve Ownby
Full time since '07
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Steve Ownby
Full time since 2007
2003 Monaco Signature
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12-11-2014, 08:25 PM
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#10
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Senior Member
Join Date: Nov 2013
Posts: 5,770
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I installed the "water miser" battery caps this past fall, not enough time for evaluation but the reviews I read were all positive.
__________________
2015 Tiffin Phaeton 40QBH
2018 Chevrolet Colorado Toad
Roadmaster Tow Setup
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