Calculation example using the 5h and the 20h rating
The C5 rating is 75Ah. The t1 rating is 5h and I1 is calculated:
The C20 rating is 100Ah. The t2 rating is 20h and I2 is calculated:
The Peukert exponent is:
A Peukert calculator is available at http://www
.victronenergy.com/
support-and-downloads/software#peukert-calculator.
Please note that the Peukert exponent is no more than a rough approximation of reality. In case of very high currents, the battery
will give even less capacity than predicted by a fixed exponent. W
e do not recommend changing the default value in the battery
monitor, except in the case of lithium batteries.
Manual - BMV-712 Smart
Page 45 Battery capacity and Peukert exponent
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