Quote Originally Posted by wannabe fisherman View Post
as far as I know HB recommends 3 amp on every thing they make. Cane Pole will know for sure.
Yep. The fuse protects the wiring, not the unit. 18 gauge wire is safely fused at 3A. The fuse blows too slow to protect the units electronics. Some manufs units have reverse battery protection and overvoltage protection and some don't.

This protection info is not in the user manual. 3A in all manuals that I have read on HB.