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Found a calculator
By franknbuger, Section Homebrewed Electricity Posted on Tue Apr 20, 2004 at 04:38:58 PM MST
I found an interesting battery use calculator.

The web site below has a battery and inverter chart.
If I cut the answers by another 1/3 thats about what mine does.It seems that the temp has a lot to do with performance. When it gets summer in Tx the rig of mine will be less than usless.How many batteries will fit in a large deep freezer.If its bad news please dont advise. Frankenbuger
http://www.solarsense.com/Spec_Your_System/Run_Times.html

Found a calculator | 4 comments (4 topical)

Re: Found a calculator (none / 0) (#1)
by Parameter on Tue Apr 20, 2004 at 05:15:36 PM MST

Well, if you set the freezer with a house thermostat to be around reasonable 20c, you still get to vent it sometimes. I really wonder how efficient this could be but if it make it possible by itself by reviving the batteries, why not. Good luck

Para

Re: Found a calculator (none / 0) (#2)
by Gary D on Wed Apr 21, 2004 at 07:42:00 AM MST

Punched in the numbers for 80 degrees, and no loss. Losses occurred below that temp, but they have nothing for higher unless I missed something. Did you find anything for higher temps? Must be losted again! Gary D.

Re: Found a calculator (none / 0) (#3)
by franknbuger on Wed Apr 21, 2004 at 10:17:40 AM MST

I land-lined the tech at the web site he said:"The figures are for canada,not for warmer climates.In warmer climes the electrolite is thined a little with,a bit more water. And that batteries perform better when warmer, they just dont last as long as when used in cooler climates."..... Note to self: build a revolving battery container that is half in and half out deep-freezer...That ought to get it.
Of course batteries dont know how to crunch numbers real good like i does.
Frankenbuger

[ Parent ]

Re: Found a calculator (none / 0) (#4)
by Gary D on Wed Apr 21, 2004 at 10:30:16 AM MST

Glad to hear that warmer is better to a point. If too hot, you could try burrying a truck tool carrying box ( the vinal type sp?) with a vent tube, but I'm not sure how much condensation might occur. I know it gets hot enough to buckle concrete down there in Tx. Just a passing thought. Gary D.

[ Parent ]

Found a calculator | 4 comments (4 topical)

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