How to Test Lithium Batteries

Written by mark spowart
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How to Test Lithium Batteries
Lithium ion batteries are used in many electronic devices. (batteries isolated on white background image by Nikolay Okhitin from

In a world of digital cameras, portable video players and many other personal electronic items, it is fair to say that the world runs on batteries. Lithium ion batteries are rechargeable batteries that are used in many portable electronic devices. And while they can be charged, used and recharged again, at some point they may become unusable as a result of their ability to hold a charge. When you suspect that your lithium ion batteries are starting to lose their capacity to hold a charge, you can perform a simple check to see if they are still in working order.

Skill level:
Moderately Easy

Things you need

  • Battery tester

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  1. 1

    Remove the lithium ion battery from your personal electronic device, camcorder or digital camera and place the battery into its dedicated charge and allow it to be charged to its full capacity.

  2. 2

    Remove the battery from the charger when it has reached its full charge and connect the battery to a voltmeter.

  3. 3

    Turn the meter on and set it to read volts. The display should read the maximum volts for which your lithium ion battery is rated.

Tips and warnings

  • If your meter has the ability to test the battery's performance under a simulated load test, conduct the test and see how the battery performs. A battery may charge fine, but when it is time to discharge its power, it dies or will not discharge in the way it was designed to.

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