In today’s world, batteries have become very popular with the increasing number of electronic gadgets. In a majority of shops around you, two types of batteries can be obtained widely, the primary or non-rechargeable battery, or the secondary or rechargeable battery.
A primary battery is built initially charged, but after powering your device for some time, it loses most of its charge, which cannot be regained. Unlike them, rechargeable batteries can be used for powering small electrical appliances. Once they go out, they can be charged again via a suitable charger connected to a wall outlet or your car output. They are very handy, light and portable and are compatible with almost any gadget lying around you. Also, these are known to save big on your battery costs, and prove fruitful in the long run. They are likewise are eco friendly, since they can be easily recycled.
Which types of batteries should you buy for the best performance?
If you want to draw maximum power from your battery, it is always better to go for a rechargeable one since they support heavy current draw, without getting too much heated. Then again, there’s no issue about replacing it. It has to be replaced only after a good five hundred cycles of charging and discharging. Then, another thing to keep in mind is the capacity of the battery. The more the capacity, the longer it can go on a single charge. Capacities of most types of batteries are rated on the basis of milliampere – hours and ampere – hours to rate the bigger ones used to power your car or inverter.
- Nickel-Cadmium Batteries.
Types of batteries are also segregated on the chemicals they contain, the most popular type being the nickel – cadmium battery. It is one of the AA rechargeable batteries, where AA stands for its size. An AA size battery is about the thickness of your thumb, and is the most widely seen around. From kid’s toys to tv remotes and electric toothbrushes, a nickel cadmium battery does it all. Nickel cadmium batteries contain anodes and cathodes of nickel and cadmium respectively, and an electrolyte of potassium hydroxide 80%. Each nickel cadmium battery can deliver from about 200 to 1200 mAh. A 1000 mAh is typically a battery, which can supply 1000 milliamperes of current for an hour, or 500 mA for two hours, and so on.
- Metal Hydride Batteries.
Metal hydrides are a more powerful type of AA rechargeable battery, and contain sodium or potassium dry hydrides as the electrolyte and lead and lead oxide for the anode and cathode respectively. They are heavier but more powerful, each capable of delivering 800 – 3600 mAh. Mainly used for powering wireless landlines, cameras and video recorders.
- Lithium Polymer Batteries
Lithium polymers are the most recent types of batteries, and they have lithium anodes with fullerene compounds as the electrolyte. Fullerenes are big hollow carbon football shaped compounds, and can trap and move metal ions from one electrode to another, resulting in the current flow. They are lightweight, and used for heavy duties like army robots, rovers, bomb detectors, quadcopters, and lightweight machinery. They are not widely seen, but can rarely be found in an AA, or a button cell packing. They are rechargeable and power ratings of AA types can range from 300 to 3000 mAh.
- Alkaline Batteries
Alkaline batteries are non rechargeable, and their anodes and cathodes made of zinc and carbon respectively. Most of the batteries you throw away after using constitute this type. It can be used to power toys, remotes and clocks. They are available in a variety of shapes and sizes.
- Lead Acid Batteries
Finally, the lead acid type battery. It is the one that powers your car or inverter, and is the most heavy duty rechargeable battery. It contains lead and lead dioxide anodes and cathodes, and concentrated sulphuric acid as the electrolyte. Size can range from a shoebox size to an entire house, and its power ranges from 5 to 25,000 Ah.