By Isidor Buchmann
Batteries in a conveyable international through Isidor Buchmann fills a distinct want for functional information regarding rechargeable batteries. regularly, functionality standards for batteries and chargers are in line with perfect stipulations. brands perform battery assessments on fresh gear and in a secure setting, faraway from the strain of day-by-day use. In Batteries in a conveyable international, Mr. Buchmann observes the battery in daily life within the palms of the typical consumer. via studying Batteries in a conveyable international, you are going to gather a greater figuring out of the strengths and boundaries of the battery. you'll how to extend battery lifestyles; familiarize yourself with prompt upkeep equipment and learn how to repair a susceptible battery, if any such procedure is out there for that battery kind. realizing tips on how to look after your batteries prolongs provider existence, improves reliability of moveable apparatus and saves cash. better of all, well-performing batteries desire alternative much less usually, decreasing the environmental hindrance of battery disposal. Batteries in a transportable global is straightforward and exciting to learn, and makes minimum use of technical jargon. The well-organized format is helping you discover details quick. The ebook is adapted for the busy expert who wishes a crash direction in higher knowing this remarkable energy resource, the battery
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Additional info for Batteries in a portable world: a handbook on rechargeable batteries for non-engineers
Figure 3-2: The button cell. The button cell offers small size and ease of stacking but does not allow fast charging. Coin cells, which are similar in appearance, are normally lithium-based and are non-rechargeable. Photograph courtesy of Sanyo Corporation; design courtesy of Panasonic OEM Battery Sales Group, March 2001. The Prismatic Cell The prismatic cell was developed in response to consumer demand for thinner pack sizes. Introduced in the early 1990’s, the prismatic cell makes almost maximum use of space when stacking.
Such situations must be avoided at all times. The manufacturers are often at a loss when it comes to replacing these batteries under warranty. Li-ion batteries with cobalt electrodes, for example, require full safety protection. A major concern arises if static electricity or a faulty charger has destroyed the battery’s protection circuit. Such damage often causes the solid-state switches to fuse in a permanent ON position without the user’s knowledge. A battery with a faulty protection circuit may function normally but does not provide the required safety.
Commercial Li-ion battery packs contain a protection circuit that prevents the cell voltage from going too high while charging. 30V/cell. In addition, temperature sensing disconnects the charge if the internal temperature approaches 90°C (194°F). Most cells feature a mechanical pressure switch that permanently interrupts the current path if a safe pressure threshold is exceeded. Internal voltage control circuits cut off the battery at low and high voltage points. Exceptions are made on some spinel (manganese) packs containing one or two small cells.