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.
If a cat has an external parasite, his skin will become irritated and he will start scratching excessively, causing scabs to develop. Your cat may suffer hair loss as well. Some parasites include mites, fleas, ticks and lice.