A different component, the alternator, is responsible for providing juice when the engine is running.
In some cases, one battery just isn’t enough.
Who Needs an Auxiliary Battery?
Lifewire
If a drain is present, then youll want to fix it before you do anything else.
It’s also important to find a safe location for the auxiliary battery.
Some vehicles have space in the engine compartment.
This is perfectly safe, although its important to follow wiring and installation best practices.
Of course, youll typically want to locate it as close as possible to youramplifier.
You may also be better off with a stiffening cap located close to your amplifier.
In those cases, youll typically want to install one or more deep cycle batteries topower an inverter.
That means you might use your electronic devices all you want without any fear of damaging your battery.
