Hi.
Here is the screenshot of my circuit and so far the low power cutoff works fine but the shirt circuit part I'm not sure. The circuit work on my everywhere app but not too sure in real life.
The mosfet RDS On is 0.020 ohm.

Please can someone tell me if this will work or give example of how its done. Thanks.

 

Is this a power supply?
If you show where the output is, and what the low power (voltage?) and circuit limit values are, we can give better answers.

Below is the circuit in normal black on white:

 

Hi and thanks for the image. My app would not let me flip the image.

The bulb is classed as the load on the circuit.
Its a 24v battery pack hence the low cutoff protection (19v cutoff).

I used a op amp to monitor the voltage between the load and source of the mosfet and when 500mv or more is detected using the mosfet as the shunt resistor it will turn a transistor on to ground the power to the other transistor that will turn off the mosfet.

 

Is the bulb the circle with the X?

What's the current limit for?

The circuit looks a little complicated for what it does.

 

Is the bulb the circle with the X?

What's the current limit for?

The circuit looks a little complicated for what it does.

Yes the bulb has the x in it.
The limit is to avoid overloading the 18650 cells ad they like to explode if stain them to much. I need a limit of 20 amps draw but is allowed to peak 25 amps for a about 5 secs etc..

The circuit is just using my own knowledge and built it the way I thought would work.