Dear Friend,
The formula for determining battery energy is:
E = P·t = V·I·t
Where:
I = Current Expressed in amperes
V = Electromotive force expressed in volts
P = Power expressed in watts
t = Time expressed in hours
E = Energy in joule
If it is a 12V 150AH battery, Nominal Capacity 150Ah
E = 12V * 150 AH * 3600 Sec = 6480000 Joules = 6.48 M Joules = 1800 Watt Hour
It means 1800 Watts of Power used for 1 hour
I hope i have answered your question
Bye
Raju
Answered by
rajadhipati
at
4:33 PM on February 02, 2010