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On Mon, Jun 13, 2016 at 5:27 PM, George Skorup <geo...@cbcast.com> wrote: > Does not compute. If he's running four 75ah batteries in series to get a > 48VDC battery, then he gets 75Ah. > > On 6/13/2016 5:24 PM, Josh Luthman wrote: > > Oh you're complicating the question...I think. > > The capacity from one 75ah is simply quadrupled in your case. You have > 300ah. When you add another (identical) battery you're adding > capacity/runtime linearly. > > > Josh Luthman > Office: 937-552-2340 > Direct: 937-552-2343 > 1100 Wayne St > Suite 1337 > Troy, OH 45373 > > On Mon, Jun 13, 2016 at 6:23 PM, Sterling Jacobson <sterl...@avative.net> > wrote: >> >> 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? >> >> > > >
