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.
Another common cause of feline hair loss is a fungal infection known as ringworm. Ringworm, which is easily spread through contact with infected animals, causes the hair in adult cats to become brittle and break off in patches.