Measuring Internal Resistance of Batteries

Contributors: Shawn Hymel
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Resources and Going Further

Taking the Next Steps

Now that you've measured and calculated the internal resistance in a real battery, here's how you can experiment even more:

  • Try making batteries out of different fruits and vegetables. Which have the best voltage and current sourcing capabilities?
  • Connect several fruit-powered batteries to light up an LED. How many do you need?
  • Measure and calculate the internal resistance of different consumer batteries.

Other Projects

Want to use a battery in a real project? Check out some of these tutorials for inspiration:

LED Butterfly Pop Up Card

Craft an illuminated butterfly pop up card with copper tape, two LEDs, and a battery.

ESP8266 Powered Propane Poofer

Learn how Nick Poole built a WiFi controlled fire-cannon using the ESP8266 Thing Dev Board!

Blynk Board Washer/Dryer Alarm

How to configure the Blynk Board and app to notify you when your washer or dryer is done shaking.

Interested in learning more foundational topics?

See our Engineering Essentials page for a full list of cornerstone topics surrounding electrical engineering.

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