How much energy will your
appliance(s) use over a period
of time?
The power consumption of
appliances is given in Watts (eg
21" fluorescent light, 13W). To
calculate the energy you will use
over time, just multiply the power
consumption by the hours of use.
The 13W light fitting, on for 2
hours, will take 13 x 2 = 26WH
from the battery.
Repeat this for all the appliances
you wish to use, then add
the results to establish
total consumption. |
