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Charging Batteries With the Engine

Forum - Boat Electrical Systems - Charging Batteries With the Engine
Module Content - Sea Talks3
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Student
William Denyer
Miami, FL, USA
Crew Level 0
Status: Sailor
Qualified days: 0
Charging Batteries With the Engine
Posted 2017, Jun 06 23:39
1. What is the minimum engine RPM recommended for charging the batteries? 2. Should the RPM be set while underway with the engine in gear or is it equally acceptable to set the RPM with the engine in neutral? 3. How long must the engine be run to fully charge batteries that are significantly depleted (11.0 volts)?
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Grant Headifen
Reply 2017, Jun 14 14:57
Charter companies recommend 2 hours per day to fully charge your batteries. If you are motor sailing then this time counts. If at anchor or on a mooring ball put the engine into neutral (usually by pushing the red button on the lever) and raise the engine RPM to 1500.
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