A battery is an electrochemical device that is able to store energy and contains two or more electric cells. All types of batteries are available and can be used to power anything from watches and toys to cars. In the automotive industry, the advantage of using an electrical battery is that it doesn't rely on gasoline for power. As technology grows, this type of automobile may become more prevalent. While some batteries can be charged, others cannot. Charging a battery is better for the environment and may be used in golf carts and tools. While a battery is charging, the positive portion of the battery is oxidized and produces electrons, while the negative portion is reduced and consumes electrons.
Cell - A cell is an electrochemical device that features both positive and negative plates that store electrical energy.
Accumulator - An accumulator is a rechargeable cell or battery.
Direct Current or DC - DC current is a type of electrical current that a battery supplies. While one battery terminal is positive, the other is negative.
Primary Cell - A primary cell produces power through an electrochemical reaction that is irreversible and cannot be recharged.
Lithium Battery - A lithium battery is a type of battery that supplies power to electronic devices and watches.
Amp Hour - An amp hour measures the electrical storage capacity of a battery.
Secondary Battery - Secondary batteries feature identical cells where the electrochemical action is reversible, so that a battery can be charged. These are also known as storage batteries and typically power portable devices.
Volt - Volt is a unit of measurement that determines the electromotive force of a battery.
Batteries and battery supply stores will carry a large amount of items to ensure that you will find what you're looking for. If you're planning on putting together an emergency pack, which will most often include flashlights, a radio, and a first aid kit, you will want to have extra batteries to ensure everything lasts as long as you need it for. AA, AAA, C, D, and 9 volt batteries will range in price depending on the brand and how many you buy in a pack. Lithium batteries are known to last for many years and are great for digital electronics, like digital cameras. If you have a camera you're buying batteries for, you may want to consider buying a rechargeable pack so you save money. Wall chargers can be bought for other electronic devices that need to have their battery charged, like cell phones and camcorders. An LED voltage display will often need more than one battery to keep it functioning. The capacity of a battery will vary on various things. You will want to look at reviews on your nickel-cadmium and lithium options to see what will work best for your battery powered TV or radio, which can be important to get weather updates during a storm. Rechargeable battery packs, fast chargers, and RC batteries can be found by looking online or in a phone book. Many general stores will carry a selection of batteries for their customers, especially if a storm is headed their way. AA and AAA are most commonly needed, but larger items will need C, D, and 9 volt to get the job done. Always check the device you need a battery for to make sure you're going to by the right size.