My Alpha manual has a section showing in detail now to determine Peukert number and Peukert capacity from the battery manufacturer’s spec sheet.
One of my criteria for selecting batteries is “does the manufacturer have a spec sheet”. From: Sterling Jacobson Sent: Monday, June 13, 2016 5:23 PM To: af@afmug.com Subject: Re: [AFMUG] Peukert Number Yeah, the Alpha will calculate this, but I need to know how to calculate Peukerts Number. Or if I’m just running a simple series of four 12v for 48 volts is 1.1 just the default I should use? Do I add up all the four 75ah ratings per battery and use that as the rated battery capacity number at 300ah? From: Af [mailto:af-boun...@afmug.com] On Behalf Of Josh Luthman Sent: Monday, June 13, 2016 4:20 PM To: af@afmug.com Subject: Re: [AFMUG] Peukert Number Peukert's formula, T = C / In (or C = T * In), where C is theoretical capacity (in amp-hours, equal to actual capacity at one amp), I is current (in amps), T is time (in hours), and n is the Peukert number for the battery. http://www.csgnetwork.com/batterylifecalc.html This? Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Mon, Jun 13, 2016 at 6:18 PM, Sterling Jacobson <sterl...@avative.net> wrote: Been reviewing my site capacity/UPS/Batteries. Our Alpha's have a Peukert Number to help identify and tweak capacity in remaining amp hours. Can someone give me the short of this calculation? That is, if I have four 12v batteries run in series that are 75AH each?
