How to see if a battery is protected

Thanks for the info mate! :slight_smile:

Thanks for the effort HKJ. Very informative.

Good Day HKJ,

Valuable info....

Thank You Very Much,

George

Thanks HKJ
I don’t remember seeing any cells with the protection at the positive end.
I wonder which cells have PTC or HRL.

Good to know that my pink unprotected Samsung ICR18650s have the vents.

Thanks HKJ , Good post !

Highly appreciated! :slight_smile:

Awesome HKJ…thanks!

will the CID or PTC be affected when the top of the cell gets dented in by the flashlight which happens on most flashlights over time

I cant remember how many times people have asked how they can identify protected cells. Thanks for the great tutorial!

That will depend on the exact construction, but probably not.

excellent, thanks

That is exactly the reason I decided to do this article, now anybody can give a good answer with just one link.

I tried to keep it simple, but I did get technical in the last part. I wanted to include some information about what unprotected cells was (I did have to open a few old cheap cells to find one with a PTC).

Thanks HKJ,Great.

Excellent information here! Sticky’d. Thanks a lot for putting this together.

Very useful . Thanks! :bigsmile:

Welcome to the Forum! :beer:

:bigsmile: Thanks

Great post wiyh many informations !! Many thanks !

:8)

Brilliant info that newbies like me can keep coming back to as we forget :slight_smile: ,cheers hkj