Battery Bank Peak Discharge Detector

[Barry Fields]

I post this only that it might aid someone else.

I designed this circuit so I could keep track of the peak discharge current for each of my 4 battery banks. It is designed around my unique system.  My system has a 60 amp charge controller, 2ea 6000 watt inverters and 4ea 48v FLA battery banks. Each bank has it's own 100a 75mv shunt. That shunt voltage is amplified by separate LM324 op amps. The 5.3 v supply is a adjusted 78L05 regulator running of my existing 48v to 12v supply. It is 5.3v to give enough overhead to obtain 4.5v peak from the LM324s. Clk is from a 555 astable circuit.

I can use the data to evaluate battery bank health and better inform inverter loading.

The first pic is the pcb I used to prove to myself that it works.

Iffn ya see any errors, don't be afraid to say something.