How To Test 18650 Battery Capacity For ECIG Vape Pen

It’s always recommend by advanced vapers to test the 18650 batteries you use with your ecig vape pen. This is because performance can degrade overtime and it will get reduces the more times you use your 18650 battery. They usually last around 500 charges before the capacity gets reduced as this is a natural cycle with any battery. Things that can impact the longevity of an 18650 battery can be how hard you push it and how long you have had it. If you get a message on the vape mode saying weak battery, you will need to test it.  Batteries state that they are 2500 mah, but your battery may be only holding half of its capacity. Testing the battery in your ecig will help you work out if you will need to change it.

1) Allow your 18650 battery to fully charge before testing.

2) Turn on your multimeter and switch it to read in volts.

3) Attach the red probe to the positive side of the battery and the black probe to the negative side of the battery.

4) It should read around 3.7 volts or higher.

5) Leave your battery to rest for 2 hours, not using the vape pen.

6) Retest the battery and check for readings. If reading below 3.5 volts with use, it shows the battery is losing it capacity without being used. This clearly shows that the battery is faulty and needs replacing because its dropping charge. If you notice that the battery reading is the same as before your battery is in good working order and doesn’t need replacing.

This is a simply way to test an 18650 battery at home for your ecig vape mod. No fancy tools or diagrams are required except for a good old multimeter. We test batteries on a regular basis for our ecig customers and we have found many undiscovered batteries that need replacing. What we have learned is a battery can look perfect from the outside, its what’s in the inside that counts the most. You can tell if a battery is bad from the outside in most cases that’s our point that we are trying to make. So please test each cell monthly to ensure optimal performance that you are getting all the time.

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Welcome to my ECIG VAPING blog. I have been a long-term smoker that has switched to vaping for more than three years and still going strong. I have been vaping for a long time and worked in many vaping retail stores. I have built up knowledge and real life experiences with vaping products that I share on my website as a passion. So don’t miss out, follow and like my Facebook page for instant updates about vaping.