5-3
Battery Systems
Section 5
Capacities
Exide
®
marine heavy-duty 12-volt batteries are nor-
mally selected for your boat. One Group 24 1000
marine cranking amp (MCA) battery is provided for
engine starting and one Group 27 115 amp hour, deep
cycle battery is normally provided for the boat’s electri-
cal accessories. These batteries are considered wet-
cell and require periodic maintenance.
Your boat might be equipped with Optima
®
Blue Top
marine batteries. Optima batteries use spiral cell tech-
nology to improve vibration resistance and service life.
These batteries are classified as non-spillable and do
not require periodic checks of electrolyte levels.
With proper care, these marine heavy-duty batteries
will last several years. Refer to any maintenance
information that came with the batteries and to
Batter-
ies
in Section 6 of this manual.
Summary of Contents for Boston Whaler 21 Guardian Series
Page 18: ...1 10 Section 1 Safety Deck Occupancy Chart...
Page 20: ...1 12 Section 1 Safety Warning Label Chart 1 2 3 4 5 6 7 8 9 6 0 A B D G C E F...
Page 22: ...1 14 Operator Notes...
Page 52: ...2 30 Operator Notes...
Page 56: ...3 4 Section 3 Fuel Systems Fuel System Diagram 1 2 5 3 6 7 9 4 8 0 A B C...
Page 68: ...4 2 Section 4 Boat Systems Control Console Layout 1 2 3 4 5 7 6 8 9 0 B A C E G I D F H J K...
Page 97: ...5 7 Operator Notes...
Page 126: ...6 20 Operator Notes...