9v battery low charge tester - 02/06/2023 15:07 EDT

Job ID: 36695997

Budget: £10 – £20 GBP

small circuit with single led to lit when battery charge is lower than 7v
reference:
https://guitarelectronics.com/lobat-low-battery-indicator-for-active-guitar-pickups-electronics/

Related categories: Engineering Electronics Electrical Engineering PCB Layout Circuit Design