Battery System (Continued)
Never disconnect battery cables when the engine is running.
Damage to the electrical system may result.
The batteries (Figures 3-41 & 3-42) are used to supply DC power to the boat. All marine batteries
provide high capacity current plus cold cranking performance. The batteries are not maintenance free
thus requiring periodic maintenance. To keep your batteries in good condition at a minimum you should:
• Maintain the water level in the battery cells.
• Keep the terminals clean.
• Keep the case clean.
• Keep the battery charged.
Many variables affect the life of a battery. Some of these are, but not limited to:
• Usage
• Temperature
• Charging
• Age
Always inspect the condition of the battery. When inspecting ALWAYS utilize proper safety precautions.
A low water level may cause the batteries to fail or possibly explode. Therefore take
corrective action immediately. If you must replace one battery, replace them all.
3-19 3-19
Systems
Figure 3-43. Volvo Volt Meter
Figure 3-44. Merc Volt Meter
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