[RE-wrenches] To insulate a battery bank-re send

[William Miller]

Friends:

I'm a little addled because of a flu.  Allow me to resend the post below 
with a more sensible wording:

I'm not sure how you insulate a space and at the same time vent it.  Any 
insulation is pointless if you have a draft flowing through the area.

If you are to insulate, then you must have an active venting system that 
can open and commence venting promptly and reliably at the first 
possibility of hydrogen gas emission.

Being from a temperate climate, this has not ben an issue for me, but for 
those of you in more extreme climates, how do you handle this 
conundrum?  Electric blowers with louvers?

William Miller


At 02:10 PM 12/11/2010, you wrote:
>At 08:25 -0800 11/12/10, Joel  Davidson wrote:
>>I recommend insulation. In general, operating temperature is very 
>>important. Batteries last longer if kept cool. However, a battery below 
>>60 degrees F (15.5 C) has reduced capacity. Temperatures above 77 F (25 
>>C) increase capacity only slightly but they significantly reduce battery 
>>life. Batteries operating regularly above 85 F (29.4 C) lose have their 
>>operating life.
>>Joel Davidson
>
>OK so you recommend insulation to keep them cool?  For me, insulation is 
>more likely to result in higher temperatures in summer.  In winter, an 
>insulated space is obviously ideal for performance depending on the kind 
>of winter (which seems to be a variable these days).  In summer, 
>insulation directly on the battery seems unlikely to keep them cool.  On 
>charge they will definitely need a temperature sensor and will be likely 
>to get hotter than ambient if insulated.
>
>
>--
>Hugh Piggott
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