Adding 2nd battery to power amplifier

[lddv1224]

Do I have to add a dual battery switch? My 2013 AR192 has a single battery switch already. I’m planning to use the second battery to power two amplifier’s. I’ll have a dual bank battery charger installed also. Thanks in advance

 

[Julian]

You don't have to. The added benefit of having the dual battery switch is it makes it easier to combine the batteries if your start battery is dead. I would invest in a common ground bar.

 

[JBehrens]

I would add something like a BEP 2 battery switch, Amazon.com : BEP 701S Battery Switches - 1-2-Both-Off : Boating Battery Switches : Sports & Outdoors Makes it easy to kill the batteries and charge while running.

 

[Jgorm]

I put this in my sxs for the aux battery my fault automatic and only needs a single bank charger.
WirthCo 20092 Battery Doctor 125 Amp/150 Amp Battery Isolator Amazon.com: WirthCo 20092 Battery Doctor 125 Amp/150 Amp Battery Isolator: Automotive