Ceiling Fans Battery Operated - You know what? The name of the informative article is simply out-and-out misleading. The sole real "minus" in regards to a ceiling fan is what it requires to get one properly installed. Ceiling fans might be hard to install for the inexperienced do it yourselfer. In some cases, where the ceiling fan will be installed you will need to run an electrical line to the region. Hiring a capable, bonded and licensed electrician will most likely save you a lot of grief in the long term unless you are skillful at achieving this type of thing.
There is also the minor "con" that entails the issue of periodic maintenance. Properly installed, a ceiling fan will give you years and years of agreeable cooling and cost-savings on your own heat bill (assuming you've got a fan that enables you to reverse the blade direction).
On occasion, ceiling fans get out of equilibrium and need small adjustments. The most common offenders are loose screws that attach the blades to the motor casing, blades which are not at exactly the same angle (pitch) as the rest of the blades as well as a blade or blades that weigh slightly more in relation to the others. Without going into great detail, be certain that all the screws are tight. When they truly aren't tightening the ones that run the fan and have come loose. Your problem continues to be solved when the wobbling has quit.
If not, make use of a yardstick or another straight piece of wood and put it (with the fan stopped) vertically at the outer edge of among the blades. Rotate the blades by hand to ensure that every blade touches the stick. If one or more do not, simply (and gradually) bend the blade(s) so that their pitch matches the others and repeat the process until you are satisfied that each blade has the same pitch.