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Frustrated

Old 04-29-2018, 05:04 AM
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Had a phenomenal stereo installed in my boat last week. The installation looks professional and clean. They changed my dual battery setup from a Perko switch with Off/1/2/1-2 selections to a Blue Sea Off/On/Combined .From what I understand this is designed for the motor to run off of one battery and the other electronics and stereo to run from the other- with the “house” battery charging both batteries while motor running. So we take boat out for first time after stereo installed , in the On position ,run 25 minutes, turn motor off , and boat will not start, switched to combined and it started.
BTW ,I switched back to ON while running hopefully to charge. I noticed that when i used the trim , when I would press the up or down, the voltage went down so far it sounded like the motor would quit.Finally in the ON position the boat Quit.
I switched back to the Combined battery and we made it back. Will take back to Barber Marina Monday but just interested in any opinions.
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Old 04-29-2018, 05:52 AM
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Unless the switch and or ACR is defective it seems to be connected wrong, both hot legs should be fused as well, that may be an issue. You can check voltage on both batteries, your motor gauge will show your starting battery and your MFD will show the house battery. I suspect the starting battery is not getting charged maybe there is a breaker that is tripped or not set in the first place.

Last edited by Vitalsigns; 04-29-2018 at 06:01 AM.
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Old 04-29-2018, 06:23 AM
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I agree, due to the battery going down so quick and then all the way down after running 3 hours
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Old 04-29-2018, 06:30 AM
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I always thought you were never to change a battery switch position with the motor running.
Possible damage to the engine charging system.
That doesn't sound like what is causing your issue, but a heads up not to that that going forward.
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Old 04-29-2018, 06:38 AM
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I gotcha, I didn’t know what to do after starting the boat in the Combined position , I didn’t think I was supposed to run in that one and I didn’t want to drain it also , so I switched back to ON while on the fly. After spending 5 grand I didn’t want to deal with this , when electrical and charging system was just fine before . I am sure they will get it figured out .
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Old 04-29-2018, 07:07 AM
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Originally Posted by coastboater View Post
I always thought you were never to change a battery switch position with the motor running.
Possible damage to the engine charging system.
That doesn't sound like what is causing your issue, but a heads up not to that that going forward.

Make sure the switches are " make before break". This allows switching while running and prevents the path from seeing an open circuit.
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Old 04-29-2018, 07:17 AM
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Make sure all connections are tight?
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Old 04-29-2018, 07:20 AM
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I know of 5 people who have a "pro" install a battery switch. Of those 5 people, 4 people had to redo the install.
You can make of that what you will.

Another reason why I am prideful that I do my own work.
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Old 04-29-2018, 07:35 AM
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Bad ground
Loose connections
Check engine charging system
Or

Put original switch back...run it as previous.....see if your back to normal
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Old 04-29-2018, 08:28 AM
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Did they install an acr along with the battery switch? That switch is normally not installed without one.
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Old 05-01-2018, 12:33 PM
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After they inspected it was a loose connection, I hope that's all , thanks for input
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Old 05-02-2018, 07:24 PM
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Always start at connection!
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