I have 84 westy:
1.  it has 2nd compartment for another battery.  I heard I need deep cycle.
Any particular amps and do I need special items to connect battery?  I only
want to use for minimal stuff like radio and lights.  Also can I use a small
deep cycle like for motorcycles?  The compartment  seems small and my battery
needs are minimal.  When I look in compartment, it has never had a second
battery in there although there are some wires but I don't think these wires
are made for 2nd battery.

2.  1st compartment for regular battery - it seems to have lots of corrosion
and paint is peeling.  How do you prevent this?