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Old 03-18-2016, 10:05 AM   #1
plumber802
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Default Digital Voltmeter Draw

There is somewhat conflicting info on this subject.I am contemplating connecting the digital voltmeter directly to the batteries.Is the currant draw such that it will have a significant effect on the batteries when not in use? I am not really interested in splicing into the wiring.Thanks for any advice.


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Old 03-18-2016, 11:09 AM   #2
LVCJ
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Default Re: Digital Voltmeter Draw

It has been said that batteries loose about 1% per day just sitting. Now if you add a Voltmeter to that, well its gonna be more. Most people use a separate on/off switch between the meter and the batteries. Some connect it through the key switch, other just use a simple toggle switch. This allows you to turn off the meter when the cart isn't in use.
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Old 03-18-2016, 04:37 PM   #3
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Default Re: Digital Voltmeter Draw

No the small digital volt meters as sold by the likes of Scotty and many others shops add NO significant draw to the batteries; your batteries would go dead on their own long before the tiny little meter would have any effect....
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Old 03-20-2016, 10:12 PM   #4
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Default Re: Digital Voltmeter Draw

The digital voltmeter will not drain your batteries any faster than they will drain on their own!
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Old 03-22-2016, 10:17 AM   #5
plumber802
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Default

Thanks for the advice.


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Old 03-22-2016, 11:08 AM   #6
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Default Re: Digital Voltmeter Draw

That's affirmative. The draw from the digital LED type meters is virtually insignificant compared to the battery's natural discharge. I have carts that have had the meter on for 6 years. No problems and it makes it easy to find the cart in the dark
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Old 03-22-2016, 01:28 PM   #7
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Default Re: Digital Voltmeter Draw

Should a meter wired direct to the battery pack still be fused in case the meter were to develop an internal short?
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Old 03-22-2016, 02:09 PM   #8
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Default Re: Digital Voltmeter Draw

Yes. Everything connected to the battery pack or to a voltage reducer should be fused!
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Old 03-22-2016, 02:23 PM   #9
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Default Re: Digital Voltmeter Draw

Quote:
Originally Posted by Volt_Ampere View Post
Yes. Everything connected to the battery pack or to a voltage reducer should be fused!
Sure that's a good blanket policy but the LED digital meter is a very low risk device drawing about 6mah through 22g wire. What size fuse do you recommend? 0.5 amp ?
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Old 03-22-2016, 03:07 PM   #10
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Default Re: Digital Voltmeter Draw

A 1 amp fuse is fine. You are protecting the wires from a short.
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