Battery

Greetings to everyone, my question is that the battery's light is black on the battery of my vehicle, even if there is a light, I even got an audio system or something, but I do not have a problem with the starter, voltage drop etc. but this light situation obviously makes me a little nervous, I am afraid that I will leave it on the road. Can anyone help if they have knowledge? I don't know how old the battery is 72 years old, I have the vehicle for 1 year. Never up 2019-12-19 18:18:31

There is a 6-digit code on the happy battery, for example:

The battery is for starting the vehicle, you take good care of the alternator. When the battery is insufficient, it feeds to the circuit, for example, if you have your installation, you are supplying electrical power to the circuit.

Thanks, let's see if I take a look at an electrician and take action accordingly.