If the battery shows less voltage or won't take a charge, it's time to get out the hydrometer. This device checks the proportions of sulfuric acid and water in the electrolyte, which is a precise indication of the level of charge.
Common causes of cat hair loss, or alopecia, can range from allergic reactions to hormone imbalances to an infestation of some pest or another. Although the different causes can be difficult to pinpoint, most are fairly easy to address and remedy.
The saliva left behind when a flea bites a cat causes an itchy reaction that makes cats scratch like crazy. Although hair loss can occur anywhere on the body, the head and ears are especially vulnerable to hair loss when cats rub themselves against furniture and carpets as they try to find some relief.