Lithium Batt Low Voltage Detection

mhanuel

Newly Enlightened
Joined
Jan 27, 2008
Messages
1
Hello To All,

Hope there is someone out there that can get me out of my ignorance...

I need to detect when a 3.6V Lithium Battery Nominal capacity @1mA to 2V = 1.2Ah, 50mA max continuous current (Tadiran P/N TL-5902), is near to be depleted, is a non rechargeable type.

My doubts are concerning how to calculate the threshold voltage that indicate a depleted battery, also must I take the measurement while sourcing the battery.
Someone tell me about a method to know when a battery is depleted connecting a forward biased diode and reading the voltage across the diode, but I really don't understand the theory behind.

I will be very appreciated with your comments.

Thanks for reading.
 
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