charge indicator in Duracell battery.

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Hi, Guys

Many times I have seen the Charge indicators in Duracell battery
Can any one let me know what material is it and how it works.

 

[Spehro Pefhany]

Hi, Guys

Many times I have seen the Charge indicators in Duracell battery
Can any one let me know what material is it and how it works.

It's a printed liquid crystal thermochromic ink temperature indicator
overtop of a printed tapered-width resistor, printed switch(es) and
printed conductors.


Best regards,
Spehro Pefhany

 

[Ian Stirling]

It's a printed liquid crystal thermochromic ink temperature indicator
overtop of a printed tapered-width resistor, printed switch(es) and
printed conductors.

I was under the impression that the resistor/conductors were actual
metal foil, not printed.
I could of course be completely wrong.