If you’re into car audio, you probably know that adding a second battery is a great way to ensure you have enough power to run your system without draining your car’s battery. But how do you actually install a second battery? In this guide, we’ll show you how.
First, you’ll need to gather the necessary supplies. You’ll need a second battery, of course, as well as a fuse holder, fuses, wire, and a battery terminal. You may also want to consider using a battery isolator to prevent the two batteries from discharging each other.
Once you have everything you need, it’s time to start wiring. You’ll want to mount your second battery in the trunk of your car, as close to your amplifier as possible. To do this, you may need to build a board to mount the battery and other components on.
Next, you’ll need to run a wire from your car’s front battery to the positive terminal of your second battery. You’ll want to add a fuse to this wire for safety. Then, run a wire from the positive terminal of your second battery to your amplifier, again adding a fuse for safety.
For the ground wire, you can use a seat belt bolt or other grounding point near your amplifier. Make sure to clean off any paint or rust to ensure a good connection.
It’s also important to fuse the wire between the front battery and the second battery, as well as the wire between the second battery and the amplifier. This will protect your system in case of a short circuit.
With these steps, you should be able to successfully install a second battery for your car audio system. And with the extra power, you’ll be able to enjoy your music without worrying about draining your car’s battery.