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Old 07-25-2011, 05:16 PM   #2
wa8yxm
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Who makes a decent digital monitor.. Well, since this forum is dedicated to hams, I'm going to assume you have basic electronic skills.

you go to the RV forums like RV.new and look up the phrase "The 12 volt side of life" then click on that and print out the battery charge level charge (Voltage to state of charge)

Now, many companies sell small digital voltmeters or kits. I have a Vector plug in automotive volt meter (plugs into a 12 volt accessory socket) that could be easily turned into a wall mount.. VERY Easily in fact. Or you can buy any decent digital panel meter and wall mount it.

hook it to the switched side of your levels sensor switch (For positive) and any handy ground.

Now, the problem.... This wno't give you an accurate reading unless the rig has been unplugged (no 120v) for at least 30 minutes and EVERYTHING 12 volt is off.

To get an accurate reading you really need to measure AT THE BATTERY.

Same thing, only conect to the battery via a fractional amp fuse (most any fraction is good, 1/8, 1/4 1/2) and a push button swith.
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