Appliance
Watts
Voltage
Amps
Hours
Amp Hours
12V Fluorescent Light
8
12
0.65
4
2.6
12V Television
20
12
1.67
1
1.67
12V Radio
5
12
0.42
1
0.45
12V Fan
4
12
0.33
5
1.65
12V Travel Iron
120
12
10
10 minutes
1.67
12V Fridge
45
12
3.75
6
22.5
Estimated Consumption
30.51
•
Amp Hours: 30.21 AMP Hours per day
•
Assumption: Solar Panel is exposed to 6 hours of suitable sunlight per day.
•
Required current from the system would be 30.51 Amp Hours/6 Hours = 5.09A
•
The required watts of the system would be 5.09A x 12.2V/0.8 = 110W
(17.2-module Vmp. 0.8 power consumption factor).
In this example, a 110W panel would be required by run the appliances for the desired time.
How much battery capacity is required?
Solar panel systems are generally sized to give plenty of reserve in the batteries.
Battery Capacity Calculation:
Current (Amp) x Hours = Amp Hours (Ah)
In the example above, we determined that we require 30.51Ah current per day.
It is never good to run a battery all the way down to zero during the charge cycle.
For the example given, at least 30% should be left in the battery.
We will need at least 30.51Ah/0.7-43.6Ah battery for each days use.
If the battery is going to be left used for 3 days without charging, the minimum battery capacity
recommended would be 43.6x3-131Ah at the related discharge rate.
There are no user-serviceable parts in this unit. If you have any problems, contact the Kogan.com
customer support team.
If the LED doesn't glow green:
•
Ensure the panels are exposed to direct sunlight.
•
Ensure the panel cables are free from damage and are connected securely.
•
Ensure the cables from the controller to the battery are free from damage and are
connected securely.
•
Check the battery voltage. If the battery voltage is less than 8V, the controller will not
work.
Check the fuse. The fuse may be blown for either of the following reasons:
•
Battery poles +/- were accidentally reversed or a short-circuit occurred.
•
Solar controller output current was over 10A.
7
User manual is subject to change without notice. For the latest version of your user manual,
please visit https://www.kogan.com/usermanuals/
