Battery water saver caps

Started by russ_drinkwater, January 12, 2016, 09:06:17 PM

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russ_drinkwater

Has anyone had any experience with aftermarket battery caps to help reduce the fluid loss from batteries?
If so what brands and availability please!
Standalone. 20 Hyundai x 220 watts panels, 2 x classic 150's, Latronics 24 volt 3kw inverter, Whiz bang Jnr, 12 Rolls surrete  4KS 25P  batteries and WBJ.
Grid tie feed-in, 12.5 kw in 3 arrays generating 50 kws per day average. Solar river grid tie inverters

Vic

Hi Russ,

I have used the standard height Water Miser caps on one battery bank,  and they have not resulted in any water consumption reduction,  at all whatsoever.

They can tend to get plugged up,  and cause some pressurization of some cells.

IMO,   Water Misers are of NO benefit at all whatsoever.

They do tend to weep more electrolyte onto the tops of that batteries than do the standard bayonet caps.

Just my experience with Water Misers.   FWIW,    Vic
Off Grid - Sys 1: 2ea SW+ 5548, Surrette 4KS25 1280 AH, 5.25 KW PV, Classic 150,WB, Beta Barcelona, Beta KID
Sys 2: SW+ 5548s, 4KS25s, 5.88 KW PV, 2 ea. Classic 150, WB, HB CC-needs remote Monitoring/Control, site=remote.
 MN Bkrs/Bxs/Combiners. Thanks MN for Great Products/Svc/Support&This Forum!!

Resthome

Ditto to Vic's comments. The Water Miser caps are of no value what so ever.

I removed the set I had and installed a Flow-Rite  watering system that fills each cell to the correct level. Caps have a water level indicater and a hole with rubber cap for tacking SG readings with a hydrometer.
John

10 x Kyocera KC140, Classic 150 w/WBJr, Link10 Battery Monitor, 850 AH @ 12v Solar One 2v cells, Xantrex PROwatt SW2000
Off Grid on Houseboat Lake Don Pedro, CA

tecnodave

Ditto Vic and Resthome,

I have water savers on my interstate set and standard caps on my Surette's and see no difference in water use, vents are a bit small and do plug up. 

Td
#1 Classic 150 12 x Sharp NE-170, 2S6P, 24volt L-16 Rolls-Surette S-530, MS4024 & Cotek ,  C-40 dirv.cont. for hot water
#2 Classic 150 12 x Sharp NE-170, 2S6P, 24 volt L-16 Interstate,Brutus Inv.
#3 Kid/WBjr 4/6 Sanyo 200 watt multilayer 4/6 P
#4 Kid/WBjr 4/6 Sanyo 200 watt multilayer 2S 2/3 P

russ_drinkwater

Ok, thanks for the replies guys!
I will skip them as they are expensive anyways.
Always pays to ask! :0)
Standalone. 20 Hyundai x 220 watts panels, 2 x classic 150's, Latronics 24 volt 3kw inverter, Whiz bang Jnr, 12 Rolls surrete  4KS 25P  batteries and WBJ.
Grid tie feed-in, 12.5 kw in 3 arrays generating 50 kws per day average. Solar river grid tie inverters