Here I have created a simple volt meter. I had to use 2 panels because I wanted to see the voltage of two batteries separately. This costs below Rs.1500 for me and display was bought from ebay. This is for my jeep and therefore could easily be fixed other than a modern car. It is really helpful for me to check the status of battery when the vehicle is idle for several days. I attached 2 switches to switch it on/off at the time I want. Thanks for reading. My next attempt is to fix a digital ampe