Yes, but I’m lazy and don’t want to compute or try to dig up their spreadsheet 
on their broken web site.

So I guess I’ll leave it at 1.1

From: Af [mailto:af-boun...@afmug.com] On Behalf Of Ken Hohhof
Sent: Monday, June 13, 2016 6:37 PM
To: af@afmug.com
Subject: Re: [AFMUG] Peukert Number

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<mailto:sterl...@avative.net>
Sent: Monday, June 13, 2016 5:23 PM
To: af@afmug.com<mailto: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<mailto: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<mailto: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?

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