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Why do most battery protection circuits have 2.5V discharge cap?

Triggering over-discharge protection will reduce battery lifetime "[Overdischarge] protection is normally not used, i.e. it is allowed to […] [remain] outside the [usage] range for best lifetime....
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How to determine the right trip point of thermal cutoff for 1/4 hp 3A 115V single phase ac motor

What you really want is a protective circuit that trips before damage to the motor occurs. I think you're barking up the wrong tree looking for a thermal solution - by the time that registers, the ...
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3 votes

Smart battery protector

Let's see how smart it is R1 and VR1 form a voltage divider to report the battery voltage to IC1. This is built to conduct (some low current) if the voltage at pin 1 relative to pin 2 is at least 2.5 ...
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