Q:

What is the difference between alkaline and heavy-duty batteries?

A:

The primary difference between heavy-duty batteries and alkaline batteries is the electrolyte they use to produce electricity. Heavy-duty batteries use zinc chloride as the electrolyte, while alkaline batteries use potassium hydroxide, an alkaline, as the electrolyte. A heavy-duty battery uses the outside zinc case as the anode, while an alkaline battery uses the zinc contained in a gel inside a steel case.

These differences in construction affect the power produced by the batteries. While heavy-duty batteries provide an improvement over standard zinc-carbon batteries, they do not match that of the alkaline battery. In low-drain operations, such as remote controls, clocks or radios, heavy-duty batteries are an economical option that performs well. However, as the power demand increases, the return on investment for alkaline batteries also increases. In hand-held games, alkaline batteries offer three times the battery life of a heavy-duty cell. Manufacturers of alkaline batteries also claim that some of their products have a shelf life of up to 10 years, while the shelf life of heavy-duty batteries is 3 years.

Both heavy-duty and alkaline batteries are primary cells. Manufacturers intend them for a single use without recharging. One of the problems with primary cells is that, regardless of the construction, the amount of power delivered decreases over time. Rechargeable batteries are secondary cells that begin with a slightly lower initial power output but provide a level amount of energy until the device drains them.


Is this answer helpful?

Similar Questions

  • Q:

    What are some household alkalis?

    A:

    Common household alkalis include indigestion tablets (antacids), bleach, toothpaste, baking powder, cream cleaner, oven cleaner, metal polish and alkaline batteries. They can have moderate to severe levels of toxicity.

    Full Answer >
    Filed Under:
  • Q:

    Is acetic acid a weak electrolyte?

    A:

    Acetic acid is a weak electrolyte that is categorized as a weak acid. Acetic acid is a weak electrolyte because it only ionizes partially. In a solution, the ions of a weak acid tend to recombine to form the acid, unlike a strong acid that dissociates into ions.

    Full Answer >
    Filed Under:
  • Q:

    What are the causes of alkaline soil?

    A:

    Alkaline soil occurs when there is too much calcium, which prevents plants from obtaining phosphorous. Phosphorous is an essential plant nutrient and without it, plants cannot carry out critical life processes such as cell division.

    Full Answer >
    Filed Under:
  • Q:

    How long do alkaline batteries last?

    A:

    Alkaline batteries typically have a shelf life of up to two years while still retaining 90 percent of their original charge. The usable lifespan of a particular battery depends on the application for which the battery is used.

    Full Answer >
    Filed Under:

Explore