One voltmeter. How to connect to 1-2-both switch

stuhaynes

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I was looking at another electrical post and it occurred to me. I have just one voltage gauge that show me only the voltage across the 2 starter batteries (we're 24 volts). Is it feasible to connect the voltmeter, via the 1-2-both switch, to read the voltage of both banks of batteries independently?

We're on board all year, but only actually sailing for a fraction of that time. This being the case we're constantly charging the 'house' bank to maintain their charge levels.

As always, all replies gratefully received.

Stu
 

VicS

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Connect it to the common terminal of the 1,2,both, off switch.

It will then read the volts of which ever battery you are using.

If you want to read them independently of the main isolator setting then use a double throw centre off switch.

Connect the meter to the common terminal and the other two terminals to the two batteries via fuses.

A spring loaded switch that will automatically return to off would be nice.
 

stuhaynes

New member
Joined
25 Dec 2009
Messages
707
Location
Yorkshire
www.best-camping-stoves.com
Connect it to the common terminal of the 1,2,both, off switch.

It will then read the volts of which ever battery you are using.

If you want to read them independently of the main isolator setting then use a double throw centre off switch.

Connect the meter to the common terminal and the other two terminals to the two batteries via fuses.

A spring loaded switch that will automatically return to off would be nice.

Thanks VicS, much appreciated :)
 
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