Simple battery-status indicator uses two LEDs - EDN
Battery charging Indicator – Mohan's electronics blog
Electronics device circuit - 12v battery charge level indicator circuit led bar graph The LM3914 is a monolithic integrated circuit that senses analog voltage levels and drives 10 LEDs, providing a linear
3 State Battery Charge Indicator Circuit
Battery full charge alarm circuit - ElecCircuit.com
How To Make Simple 12V Battery Full Charge Indicator Circuit, 12V Car Battery Status Monitor 12.75V - Y… | Electronic circuit projects, Car battery charger, Circuit