"GC" wrote in message ...

Any help/suggestions on choosing the correct battery would be most
appreciated.

The Q is meaningless without knowing what electrical loads it must
service & what the usage pattern is. It is like asking: "I need a
new 4WD truck - should it be a fullsize crewcab 3/4 ton Chevy with
air, or a Jeep with a winch?".

The term "deep cycle" also has no specific meaning from one mfg/model
to another.

When in doubt & unwilling to define needed capacity accurately, any
brand will do - as long as it is either purple & says "Trojan" on it,
or is yellow & white & says "Optima" on it.