Fuse the Start Battery

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Steve_Catalina

.
Apr 1, 2004
185
Catalina 34 Herring Bay Chesapeake, MD
Maine and all others,

From what I have read it appears there is safety in fusing our starter battery.

Normally I would fuse based on the size of the wire. Om my starter I have a #2 wire to my engine and a #8 from the same battery to my Xantrex charger. If I use Blue Sea MRBF fuses with a dual terminal block I would use a 200 amp (blue) fuse for my starter and a 80 amp (lime) for my charger.

Am I understanding this correctly?

Thanks all,

Steve
 
Maine Sail

Maine Sail

.
Feb 6, 1998
11,760
Canadian Sailcraft 36T Casco Bay, ME
Steve_Catalina said:
Maine and all others,

From what I have read it appears there is safety in fusing our starter battery.

Normally I would fuse based on the size of the wire. Om my starter I have a #2 wire to my engine and a #8 from the same battery to my Xantrex charger. If I use Blue Sea MRBF fuses with a dual terminal block I would use a 200 amp (blue) fuse for my starter and a 80 amp (lime) for my charger.

Am I understanding this correctly?

Thanks all,

Steve
Click to expand
So long as these wires are not in the engine compartment and are 105C rated then you can do 210A max on the 2 GA and 80 A max on the GA
 
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