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Ok maybe this is going to be a dumb question but I need to ask it, I use Sealed Leisure Batteries and I want to insulate them for the winter months, do I need to vent the storage or not as they are sealed?
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the name "Sealed Leisure Batteries " means nothing. Are they Gel or AGM batteries?
AGM can withstand being frozen, Gel cannot.
Fully charged batteries will not freeze till -40F
Will these be in operation, or in a idle cabin ?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 -
Huh?
Never heard of a Sealed Leisure Battery, nor have you I bet.
I think you meant Sealed Lead Acid (SLA) which come in 3 flavors
AGM = Absorbed Glass Mat
VRLA = Valve Regulated Lead Acid
Gel = gelled lead acid electrolyte.
I will not even discuss Gel batteries as they have no useful purpose in RE applications. AGM and VRLA are basically the same thing and are well suited for extreme arctic temperatures but you will pay 3 to 4 times more for them. However a standard Flooded Lead Acid (FLA) is kept charge are good to -40 F and cost 1/3 of the SLA. But there is no reason to insulate any of them.MSEE, PEComment
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Thanks for the help here are two links can you tell me more info about them.
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Kimba please accept my apology sir. Guess this is just a slight communication problem with us Yanks and Brits. We call common items by different terms.
OK I looked at your links, and Leisure from what I can ascertain is a marketing term for what we call RV products. Whoed a thunk it?
They have 2 basic types Flooded Lead Acid (FLA) and Sealed Lead Acid AGM types for starting, deep cycle, and marine. For renewable energy application you want what they call NUMAX AGM LEISURE (CYCLIC) BATTERIES. Steer clear of the others.MSEE, PEComment
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Hi Sunking I thought it was the case, and never took what you said as more than that, but thanks for the apology.
So it seems I already have the wrong batteries
lucky for me your information came at the right time as I was about to upgrade to another two batteries, ok so rethink time I guess.
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