How to check if a battery is fully drained in just one second, do it like this!

How to check used batteries

How do you check used batteries?

If you have organized everything well in advance, there will be no need to check again.

When placed randomly, each one needs to be checked individually.

Today, I will tell you how to check a battery that is used up in just one second and some useful tips for using batteries.

The usual way to check if a battery is fully used is to insert it into the product.

You have to repeatedly insert and remove each one individually to check if you've finished.

Now, do it like this!

Take one battery and go to a place with a flat floor.

Then, drop the battery vertically from a height of about 1 to 2 cm with the correct polarity facing downward.

At this point, if the battery stands upright, it is a new battery.

If the battery makes a clicking sound and bounces without standing still, it is a dead battery.

The cause is right in the alkaline battery.

Zinc oxidized using batteries is said to have a spring-like bouncing property.

So, used batteries can't stand upright and tend to bounce around.

👉 I put a 'nail clipper' in the water and used it...!?

👉 Everyone will be surprised if you plug a 'plastic bottle' into the outlet.

It's great because you can check whether the battery is used up or new in just one second.

Possible issues that can occur when using batteries

Here's another tip: it's when the battery size doesn't fit properly.

Here's a useful tip for when you need AA batteries but only have AAA small batteries.

What you need right now is aluminum foil! Fold the foil well and shape it into a small ball.

Then insert the small battery and place the foil ball into the empty space.

By doing this, since current flows, it can operate even with a small battery.

Attention! Because it may cause problems if used for a long period

It's a good method to use when you need it for a short period!

Today, I shared useful tips for using batteries. [Source: Viewers]