Boat not starting

angelo2

New Member
Jan 3, 2014
4
miami beach
Boat Info
42 sundancer 2004,raymarine
Engines
417 cummins
Hello Sea Ray members,
i have a 2004,420 Sundancer with 417 Cummin motors.My batteries are interstate 27M-XHD 800CCA 1000MCA.
The engines start up fine,i drive for an hour i then turn them off and restart them and both engines won’t start.they sound like dead batteries.i wait few seconds and try again and slowly they start.originally before i start the engines the batteries voltage read 13,the system Reads 13 (alternator and starter)once starter everything reads 14.driving for an hour until i turn them off reads 14.Any suggestions.
 
How old are the batteries? My memory of the QSC was that 1000MCA was the minimum recommendation. The 44DA also has Group 31's

You can use the Emergency Start that will parallel all 4 batteries together.

If the batteries are more than 3 years old or your not sure of age, I would have them all tested. 27's are easily removed and brought to an auto parts store, many will do free battery testing.
 

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