How To Tell If A Lithium Ion Battery Is Bad?

Without an analyzer, or running runtime test etc, the easiest way to tell that a Li-Ion cell is nearing it’s EOL, is that it will not hold a charge well, will not perform as well as it used to, and will get noticeably warmer when charging.1 Sep 2012

How can you tell if a lithium battery is bad?



Suggested clip 100 seconds

Separating GOOD 18650 cells from BAD ones – Battery talk #2


Start of suggested clip

End of suggested clip

How do you test a lithium battery?

Locate the positive and negative terminals of your lithium ion battery. These will usually be located on the end of your battery that slides first into the device it powers. The terminals are tiny, but they are clearly marked with a positive and negative symbol.

Do lithium batteries go bad if not used?

Lithium Ion batteries “go bad” when they are stored in discharged state. It is all about battery voltage. If voltage is too low – undesireable chemical reactions will happen and battery will degrade. If battery is not empty and not used for long time – it will be fine.25 Sep 2014

How long will a lithium ion battery last if not used?

If the voltage of a lithium-ion cell drops below a certain level, it’s ruined. Lithium-ion batteries age. They only last two to three years, even if they are sitting on a shelf unused. So do not “avoid using” the battery with the thought that the battery pack will last five years.

How do you bring a lithium battery back to life?


We recommend reading:  How To Fix Computer Freezing?


Suggested clip 91 seconds

Back from the DEAD! Lithium Batteries! – YouTube


Start of suggested clip

End of suggested clip

What is the shelf life of a lithium battery?

How long should batteries last?

Chemistry Shelf Life Cycle Life
Lithium Non-Rechargeable 10-12 Years None
Nickel Cadmium 1.5-3 Years 1,000 +
Nickel Metal Hydride 3-5 Years 700-1,000
Lithium Rechargeable 2-4 Years 600-1,000

3 more rows

How do you fix a lithium ion battery that won’t charge?

You’ll need to completely drain the battery for this to work, so once it reaches zero percent, keep turning it back on until it doesn’t even have enough power to boot. Now, plug in the power cord (to a power outlet) and let the battery charge for at least 48 hours.

How do you test a lithium battery without a multimeter?



Suggested clip 80 seconds

How To Test Any Alkaline Battery Without Multi Meter – YouTube


Start of suggested clip

End of suggested clip

Can you load test a lithium battery?

When cycle testing lithium ion batteries both current and voltage levels should be recorded throughout the test. A DC electronic load tester is a tool that can be used to discharge at a constant current and programmed according to your charge-discharge cycle requirements.