Hello, and thank you for the quick response.

When repairing an car amplifier, sometimes is needed to regulate the current to reduce the risk

Of generating more problems.

I have a 12 volts 20 amps power supply which current can be adjusted from 3-20 amps.

What I will like is to find the way to regulate the current of a 12 volts battery the same way I do with my 20 amps

Power supply.

Thank you