Gordon wrote:

Why does the above draw 5 ma when turned off? Had this sucker hooked up
direct to the batt and over several months, it drained the it.

Is it a DSC radio? Maybe it draws something to save the position data?

If nothing else you've learned that hooking anything direct to a battery
is not a good idea. For me, everything on a boat needs to be on a
breaker (with the possible exception of a bilge pump with a foolproof,
zero draw, switch).

If you're short on breakers you can usually isolate a group of low draw
accessories like the radio on one breaker that is large enough to handle
them all (each device with individual an in line fuse on it power lead
of course).

Do you have an mains switch on the battery? That should turn off
everything in the boat.

Jack

--
Jack Erbes in Ellsworth, Maine, USA - jackerbes at adelphia dot net
(also receiving email at jacker at midmaine.com)