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Old 08-08-2019, 02:43 PM   #1
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12VDC battery monitor with 100 amp shunt

I was searching for a 12vdc monitoring system for our RV since we have a residential refrigerator. I ran across this little meter [US$12.99 21% OFF]DC 100A LCD Voltage Current Meter Car Battery Panel Power Monitor With Shunt Module Board For Arduino from Electronics on banggood.com
https://banggood.app.link/AoBOASSGZY
I've bought from here before (6 liter oxygen concentrator for $250) with no problems. Thought I'd pass along the deal.
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Old 08-08-2019, 06:29 PM   #2
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I installed a similar unit last month. Heres a diagram and some photos.

Upgrade Coach 12 volt system – 1999 Southwind 35S


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Old 08-08-2019, 09:43 PM   #3
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Quote:
Originally Posted by Waiter21 View Post
I installed a similar unit last month. Heres a diagram and some photos.

Upgrade Coach 12 volt system – 1999 Southwind 35S


..
nice write up. thanks for the reply.
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Old 08-09-2019, 06:23 PM   #4
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Just make sure a 100amp shunt is enough to cover all your loads. I use a Magnm BMK shunt ad it's 300 amps.
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Old 08-09-2019, 06:41 PM   #5
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100 amps is 1200 or less inverter output watts so running a microwave or coffee pot on inverter might be too much for the shunt. Probably won't melt but might get warm and give inaccurate readings.
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Old 08-10-2019, 01:25 AM   #6
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Quote:
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Just make sure a 100amp shunt is enough to cover all your loads. I use a Magnm BMK shunt ad it's 300 amps.
You can buy a 300 amp shunt for it as well. https://www.banggood.com/Shunt-Resis...r_warehouse=CN

The only thing on our 1000 watt invertor is our frig and TV's. So i'' try the 100 amp for now may upgrade latter.
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