Comments on: If I Connect Solar Panels, A Battery, And A Load, Can I Figure Out How Long It Lasts? http://www.solarpowerforhome.userreviews.net.au/best-solar-panels/if-i-connect-solar-panels-a-battery-and-a-load-can-i-figure-out-how-long-it-lasts/ Everything To Install Solar Power To Your Home Wed, 08 Sep 2010 10:08:41 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: David F http://www.solarpowerforhome.userreviews.net.au/best-solar-panels/if-i-connect-solar-panels-a-battery-and-a-load-can-i-figure-out-how-long-it-lasts/comment-page-1/#comment-4251 David F Sun, 28 Feb 2010 11:43:25 +0000 http://www.solarpowerforhome.userreviews.net.au/best-solar-panels/if-i-connect-solar-panels-a-battery-and-a-load-can-i-figure-out-how-long-it-lasts/#comment-4251 Assuming all voltages are the same, you'd be draining the battery at 5 -2 = 3 A. Assuming the battery starts off fully charged, 40 Ah / 3A = 13 hours and 20 minutes, approx. Of course, the discharge curve won't be so discrete, but for a first approximation, this will work. Assuming all voltages are the same, you’d be draining the battery at 5 -2 = 3 A.
Assuming the battery starts off fully charged, 40 Ah / 3A = 13 hours and 20 minutes, approx.
Of course, the discharge curve won’t be so discrete, but for a first approximation, this will work.

]]> By: guru http://www.solarpowerforhome.userreviews.net.au/best-solar-panels/if-i-connect-solar-panels-a-battery-and-a-load-can-i-figure-out-how-long-it-lasts/comment-page-1/#comment-4250 guru Sun, 28 Feb 2010 11:14:35 +0000 http://www.solarpowerforhome.userreviews.net.au/best-solar-panels/if-i-connect-solar-panels-a-battery-and-a-load-can-i-figure-out-how-long-it-lasts/#comment-4250 It depends on the application You will draw 5 Amps for how many hours per day? You will get 2 amps for how many hours per day? For each hour of operation at 5A you will need (5/2) = 2.5 hours of sun. Hope this properly answers your question It depends on the application
You will draw 5 Amps for how many hours per day?
You will get 2 amps for how many hours per day?
For each hour of operation at 5A you will need (5/2) = 2.5 hours of sun.
Hope this properly answers your question

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