Ulvik, read your
Controller Manual. Observe how charging works before running anything but lights, - what is the voltage in the morning before solar kicks in, at noon, in the evening, what other messages or icons are there on display.
Read the nameplate on 110V appliances before plugging it in, ask if you are in doubt. There will always be people yelling that you are wasting their time without data, and sometimes somebody will be yelling when you provide them with data :). It is not likely that a "small" 110V fan could deplete fully charged 2 GC, but then it is not clear how full they were.
With so few devices you don't have to buy fancy ammeter to find out what draws the current and exactly how much current. You can derive this information from the controller as well.
The bottom line is getting battery 95-99% full in the evening and keeping it above 50% by the morning. Observe voltages. Avoid 110V devices if you can (small electronics like TV is fine).
