Author Topic: Two main battery switches on a Bavaria 44  (Read 1108 times)

ancanc

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  • Boat Model: Bavaria 44 AC
  • Boat Year: 2003
Two main battery switches on a Bavaria 44
« on: October 03 2023, 19:11 »
Hi,
I have a Bavaria 44 / 2003 with two main battery switches underneath the chart table - unfortunately the wiring diagram shows only one.
The second one (closer to the captain's seat) controls almost everything I use, have no idea what the first one is for, anyone found it out eventually?
Thanks
Andras

Yngmar

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  • Boat Model: 40 Ocean
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Re: Two main battery switches on a Bavaria 44
« Reply #1 on: October 03 2023, 20:52 »
Windlass? Bow thruster? Inverter?
Sailing Songbird  ⛵️ Bavaria 40 Ocean (2001)

ancanc

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  • Posts: 45
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  • Boat Model: Bavaria 44 AC
  • Boat Year: 2003
Re: Two main battery switches on a Bavaria 44
« Reply #2 on: October 03 2023, 21:23 »
Bow thruster has a direct connection through a fuse, I installed the inverter, it has its own switch. Windlass - could be, going to check it tomorrow.. Thanks

kriselda

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Re: Two main battery switches on a Bavaria 44
« Reply #3 on: October 04 2023, 03:05 »
On my vessel, one is for the engine starter battery and one is for the house batteries.
I also have a third switch for linking the batteries to start the engine off the house batteries.

ancanc

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  • Boat Model: Bavaria 44 AC
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Re: Two main battery switches on a Bavaria 44
« Reply #4 on: October 04 2023, 09:50 »
Thanks, this is what I was thinking the whole time too. Unfortunately the "house battery" switch went wrong and I could not start the engine - until I found out that pushing the switch key helps, I was lucky that I was not alone.. Switched off the first switch (the motor switch?) but everything is still working with the "house battery" switched on. I am the second owner, so maybe someone made some "undocumented" changes or connections, II will have to follow the 95sqmm wire coming off the first switch to find it out I think.
I replaced the original Quick QIS15N with max. 150A permanent load with an Osculati Heavy Duty MKII 14.385.10. (280A max permanent load)  The new one needs a larger hole (28mm instead of 25mm) but fortunately the original hole was big enough.