Second Battery

We've installed a new head-unit with 4 speakers (incl 2x Polk 6.5" Tower units) and 4-channel amp.

We've been advised to get a second battery so as to avoid having to be towed home!

Anyone got any views on this?

Can anyone tell us how to correctly install the second battery?

Don't want to cook the electrics!

Thanks

Robbie,

search the archives, it has been discussed at length in the past.

A 2nd battery in a boat is a must !! Easiest route to go is a Perko switch.