Marine Electronics Forum

FF & GPS power off

Old 04-30-2008, 04:19 AM
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Join Date: Jul 2005
Location: Loreto Baja Sur Mexico
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Default FF & GPS power off

2 battery setup with 1/2/all/off switch. Volvo diesel AD41. Furuno machines.
When only on 1 battery and restarting the engine after fishing, both the GPS chart plotter and FF power off.
The FF comes back on after engine startup but the GPS does not.
Battery switch on "ALL", neither of the machines shuts down.
I suspect a voltage drop off using one battery on engine start, that falls below the minimum required for the machines.
Is there a fix to this?
Isolator or some such gizmo?? If so, how to??

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