Need to make charge indicator for 4 V 1 Ah Lead Acid battery Answered
I have made a solar study lamp. I am using 4 volts 1 Ah lead acid battery for the same and 3 Watt solar panel. It charges well with the current circuit. But it does not have a charge indicator. I am looking for a battery charging circuit with charge indicators as follows:
1. Low battery indicator
2. Battery full indicator
3. Charging indicator - to indicate battery is getting charged
Trying to keep this simple and inexpensive as this lamp is a part of social initiative for rural areas.
Thanks in advance!