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26 | SAMLEX AMERICA INC.






for a 12V inverter is given below:
Let us say that the total AC Watts delivered by the 12V inverter = 1000W.


Next, the energy required by the load in Ampere Hours (Ah) is determined.



Now, the capacity of the batteries is determined based on the run time and
the usable capacity.



And nally, the actual desired rated capacity of the batteries is determined based on
the fact that normally only 80% of the capacity will be available with respect to the
rated capacity due to non availability of ideal and optimum operating and charging


It will be seen from the above that the nal rated capacity of the batteries is almost 2
Thus, as a rule of thumb, the Ah capacity
of the batteries should be twice the energy required by the load in Ah.

 
 
SECTION 7 | General Information on Batteries for
Powering Inverters