Most people kill them in two or 3 years. Those that keep them well charged, and Maintain them sometimes get 8 or 10 years, but probably NOT from current productionââââ-MEXICANââââ built Interstate brand batteries, which are , let us say, not quite as good as the old ones.
Lipids ï½ Lipids ï½ Molecules made up of mostly carbon and hydrogen atoms (and some oxygen atoms too) ï½ Nonpolar covalent bonds ï½ Hydrophobic ï½ Insoluble in water ï½ Can be identified by the 2 key parts of their assembly: one glycerol backbone and 3 long carbon chains (fatty acids)â¦ ï½ Far greater than 2:1 H:O ratio.
Lipids. Fats, oils, waxes, and sterols are collectively known as lipids. Like the carbohydrates, the true fats contain only carbon, hydrogen, and oxygen. The molecules of such a lipid are made up of a glycerol molecule with three fatty acid molecules attached to it. This kind of lipid is also called a triglyceride. An important class of lipids is composed of the phospholipids that make up cell membranes. The class of compounds called steroids are also lipids, and cholesterol is one of the steroids.