Question about 18650 batteries

[PsychoBunny]

I ordered 2 18650 batteries from Amazon and in the product
discription, it said: internal PCB.

Does this mean it's "protected"?
And, what does PCB mean?

 

[rmteo]

PCB = "Printed Circuit Board".

If it has an internal PCB, it is protected.

 

[PsychoBunny]

PCB = "Printed Circuit Board".

If it has an internal PCB, it is protected.

Thanks :thumbsup:

 

[PsychoBunny]

Oh no, another problem!
The same batteries, they wont work in my flashlight because they
dont have the little raised nipple on the + end, no contact!
They are Tenergy from Amazon.com.
I have some Trustfire ones on order, I am pretty sure they DO have
the nipple.

Is there anything I can do with these Tenergy's?
Glue a little piece of copper on it or something? :sigh:

 

[65535]

Solder blob, small magnet from lighthound.com or your favorite magnet shop. Solder is best because it won't move and it takes damage for the cell and can be redone easily. May damage the pcb though.

 

[Art]

PCB = "Printed Circuit Board".

If it has an internal PCB, it is protected.

Wow I always thought it was "Protective Circuit board"

 

[PsychoBunny]

Solder blob, small magnet from lighthound.com or your favorite magnet shop. Solder is best because it won't move and it takes damage for the cell and can be redone easily. May damage the pcb though.

How could it damage the pcb?

 

[moonfish]

I'll guess when you solder the blob on the heat may damage it.

 

[PsychoBunny]

I'll guess when you solder the blob on the heat may damage it.

I can do it w/o heating the battery much.
I am used to soldering voice coils on speakers, very tricky!!

I am more concerned that the solder wont stick very long.

 

[LuxLuthor]

The soldering can damage components on PCB, and/or the secure connections of components.

Also, there are different quality levels of protection PCB's. I would want to see the detailed testing reports of a particular 18650 PCB, including how it is installed and protected before regarding it as an adequate protection.

For example, if there is a weak, flimsy, thin cushion/collar around the PCB (under the shrinkwrap) to prevent crushing when a flashlight tailcap is tightened, the protection PCB could be rendered useless.

Note the pictures I posted in the start of this thread from an older AW battery, and how it didn't compare to the Pila quality...but then AW had updated the quality which I showed later in thread.