9.6 Applications of Battery Technology

Walkie Talkie with battery

Walkie Talkie with battery

Thanks to the invention of the dry cell and the improvements of the alkaline battery and the rechargeable Li-ion battery, batteries have been transformed from low-power, cumbersome jars of liquids into easily portable sources of hours of electrical energy. Wherever there’s a need for electricity that isn’t constantly connected to the power grid, batteries provide an easy solution. For that reason, they’ve been adopted into many types of portable devices and small electronics.

More powerful batteries can also provide power in backup systems for industrial uses and in heavy machinery and automobiles. Smaller batteries generally don’t provide as much electrical energy as their larger counterparts, so battery-powered machines often have to choose between being high-powered or being easily portable.

QUIZ - Chapter 9

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