Hello eveybody! My question is simple. I am making a battery monitor, which will light a LED if the battery is at 10.5V, 13V and charged at 14.2V.
My idea is to put a zener diode after the battery which should break through when the battery is charged to the voltage it needs. After the zener diode there is a current limiting resistor, after the resistor there is a second zener at 5,6V, after the second zener there is another current limiting resistor and the LED is last. I intend to put 3 such zeners and LEDs.
What bothers me is that there will be a charger connected to the battery, will the battery limit the voltage to whatever its charged or will the zeners just break through if the charger is connected?
I will add a picture of the circuit later.
My idea is to put a zener diode after the battery which should break through when the battery is charged to the voltage it needs. After the zener diode there is a current limiting resistor, after the resistor there is a second zener at 5,6V, after the second zener there is another current limiting resistor and the LED is last. I intend to put 3 such zeners and LEDs.
What bothers me is that there will be a charger connected to the battery, will the battery limit the voltage to whatever its charged or will the zeners just break through if the charger is connected?
I will add a picture of the circuit later.