Battery Sizes And Types
Below is a MRR and PLR article in category Computers Technology -> subcategory Other.
Battery Sizes and Types
Overview
Batteries play a crucial role in science and technology by storing energy for electrical use. They are composed of electrochemical devices, which include one or more galvanic cells.
Historically, the earliest known batteries, known as Baghdad Batteries, date from between 250 BCE and 640 BCE. The modern era of batteries began with the invention of the Voltaic pile by Italian physicist Alessandro Volta in 1800. As of 2005, the battery industry has grown to generate around $48 billion in annual sales.
Types of Batteries
Batteries are primarily categorized into two types: rechargeable (secondary cells) and non-rechargeable (primary cells).
Non-Rechargeable Batteries
Known as primary cells, these are designed for single use until their chemical components are depleted. They are often used in portable devices with low power demands or where alternative power sources are unavailable.
Rechargeable Batteries
Also called secondary cells, these batteries can be recharged after use by applying an external electrical current, reversing the chemical process. Chargers are used to renew their energy.
The lead-acid battery is the oldest type of rechargeable battery still widely used today. It contains a liquid in an unsealed container, requiring it to be kept upright and in a ventilated area due to the potential release of explosive hydrogen gas. Despite being heavy, they are cost-effective and common where portability is not a concern. Car batteries are a typical example.
A variant, the gel battery, is costlier and includes a semi-solid electrolyte to prevent spills.
Portable Battery Types
Portable batteries, known as dry cells, are sealed units used in items like cell phones and laptops. They include:
- Nickel-Cadmium (NiCd)
- Nickel-Metal Hydride (NiMH)
- Lithium-Ion (Li-Ion)
These types vary in power density and cost, with Li-Ion being the most powerful and expensive.
Battery Sizes
Batteries come in various standard sizes to fit different appliances. Common types include the A-series (A, AA, AAA, AAAA) and others like B, C, D. Specialized types such as 3R12, 4R25, and PP3 are used in specific applications, like lanterns. Many other less common batteries exist, each tailored to specific needs.
In summary, batteries are indispensable in modern life, available in numerous types and sizes to meet diverse energy needs.
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