Lithium Battery Capacity Tester

Hey! everyone My name is Steve .

Today i'm going to show you How to Test Lithium Battery Capacity .

Couple of weeks back i took 18650 Battery from an Old Laptop Battery

I don't know the current Capacity of these batteries So i did this test to find out how much capacity is left

Click Here to See The Video

Let's Start

• Lithium Battery Capacity Tester click
• 18650 Lithium Battery (Test Subject)

Lithium Battery Capacity Tester

• It's Supplyed with 2 7.5 ohms 5W resistance
• it can take input up to 15V and 3 Amps

Features

• Fully adjustable according to your need
• very cheep price

You can see the label over the board

+ Connects to Battery positive

- Connects to Battery negative

R Connects to Resistance (Load )

R Connects to Resistance (Load )

You need a wall adapter or a power bank to power the Module

Make Sure Your Test Battery are Fully Charged

*Otherwise the result will be less then what it is capable up to

All things are connected Now you are good to go

• you can see "-" and "+" button are there you can set the cut off voltage from there (For example - Lithium battery the cut off voltage will be 3v )
• Now hit "Ok" button to start the test

It will take 2-3 hours to test (time is depending upon the batteries )

After 3 hours of test i got 1246mAh of capacity left in my old 18650 battery

Happy to see that

Thank you for visiting my Instructables