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There are a multitude of different battery technologies available. There are some really great resources available for the nitty gritty details behind battery chemistries. Wikipedia is especially good and all encompassing. This tutorial focuses on the most often used batteries for embedded systems and DIY electronics.
There are some concepts and bits of knowledge you may want to know before reading this tutorial:
What is a Circuit?
Every electrical project starts with a circuit. Don't know what a circuit is? We're here to help.
Voltage, Current, Resistance, and Ohm's Law
Learn about Ohm's Law, one of the most fundamental equations in all electrical engineering.
What is Electricity?
We can see electricity in action on our computers, lighting our houses, as lightning strikes in thunderstorms, but what is it? This is not an easy question, but this tutorial will shed some light on it!
Alternating Current (AC) vs. Direct Current (DC)
Learn the differences between AC and DC, the history, different ways to generate AC and DC, and examples of applications.
Looking to explore different batteries?
We've got you covered!
Lithium Ion Battery - 400mAhPRT-13851
Coin Cell Battery - 20mm (CR2032)PRT-00338
9V Alkaline BatteryPRT-10218