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Old 06-17-2016, 10:17 AM   #1
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Battery level

Is their a product out there that I can use tell how much battery I have left?
Something like on my cordless drill batteries, it tells me the percentage that's left on the battery. I'm looking for something I can just manually hook up to my battery via alligator clips or just touching the post with probes? Probably a dumb question, but I'm sure there's someone out there that knows. Thanks


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Old 06-17-2016, 10:42 AM   #2
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West marine has a couple different styles of these.They are intended for trooling motors which is why they have them.
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Old 06-17-2016, 12:02 PM   #3
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You could do something like this, and just hook it up as you need it, LED Indicator Battery Capacity Tester Voltmeter 12V 24V 36 48V Lead Acid Lithium | eBay

Or you can hard wire it in the cabin like this.

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Old 06-17-2016, 12:10 PM   #4
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Perfect, thanks



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Old 06-17-2016, 06:43 PM   #5
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Or..you can use a voltmeter . ..purchased at a local hardware store..


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Old 06-17-2016, 06:55 PM   #6
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Make it easy on yourself, buy one of these cigarette lighter battery tester | eBay. Then look up the 12v battery chart so you can determine % left. It's important to calibrate the reading on your tester, so you can make any adjustments to the chart data.
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Old 06-18-2016, 12:39 PM   #7
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Quote:
Originally Posted by Still Kickin View Post
Make it easy on yourself, buy one of these cigarette lighter battery tester | eBay. Then look up the 12v battery chart so you can determine % left. It's important to calibrate the reading on your tester, so you can make any adjustments to the chart data.

This is the easiest for most Small RV's, The panel mounted meter is very nice option if you want to have one mounted and constant view, using a voltmeter you either have to get to the battery or use a test points in a cigarette power port.

Just remember not let your battery get below 50% power or 12.2 volts for max life of you battery.
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