So I needed an over discharge battery protection and I've built something like this: [image] However something is wrong with this hystereses calculation. The voltage I get to the positive input isn't the total voltage divided by 4. To add it I used this calculator: http://www.daycounter.com/Calc…

LM393 Positive Hystereses Calculation

Jabberwock October 10, 2017, 4:57pm 5

My god... Time for pictures I guess:

Now, what should I do to solve this?