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Phil Allison[_2_] Phil Allison[_2_] is offline
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Default Those Red/Yellow/Green 3-LED Battery Level Indicator Voltage State Of Charge

Phil Allison

Would anyone know where to purchase the small 3-LED battery indicators
seen on flashlights or other battery powered items which indicate the
condition of the battery?

There is a very compact side-by-side rectangular red, yellow, green
3-LED indicator on some products to show when the battery charge is

** No way it will work with rechargeable cells like NiCd or NiMH.

Only good for non-rechargeable like alkaline.

This is contrary to my expectation. Please enlighten...

** Simple fact is that no voltmeter reading will show the state of charge of
a NiCd or NiMH battery.

The discharge curve of the cells is almost flat - ie the terminal voltage
does not vary until the cell is nearly exhausted.

This is quite unlike non rechargeable cells like carbon zinc and alkaline.

.... Phil