rickhenderson/common-battery-info.md

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A collection of battery info for building simple electronic circuits using breadboards or small printed circuit boards. Depending on your level of experience.

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common-battery-info.md

Common Battery Info

Battery Type	Voltage (V)	Capacity (mAh)	Chemistry
CR2032	3.0	NA	Li-MnO2
AA, AAA	1.5	varies 350 - 1000	Alkaline
AA, AAA	1.2		NiMH or NiCd

Use with LEDs

Most standard LEDs have a nominal voltage of 3V, which is why you can run an LED using 1 CR2032 (coin) battery but you can't run an LED with a single AA/AAA battery.

A standard CR2032 battery