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Old 04-20-2019, 08:28 PM   #1
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Battery monitor question

Good evening everyone, quick question I just installed my vitron bmv700 got everything up and running but noticed something that seemed a bit off.

I have 2x6V 225mAh battery on my trailer which I set on the bmv. But it is saying my charger voltage is around 13.68 volts. Since a 6 volt is about 6.3 or so volts wouldn't 2 be about 12.7 volts? Should I drop this down on the bmv setup?


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Old 04-20-2019, 08:35 PM   #2
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How long has the charger been running ?

How old are the batteries ?

I wouldn't consider adjustments until the charger had been on for 24/36 hours, and a float charge, ( maintenance ) would be 13/13.2.

99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
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Old 04-20-2019, 09:14 PM   #3
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Only been on for about 12 hrs. Battery are only 2 years old.
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Old 04-21-2019, 03:49 AM   #4
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If your up in cold weather area 13.7 volts is a normal float voltage.

13.4 to 13.6 float voltage is a normal voltage at 77 F.
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Old 04-25-2019, 10:28 AM   #5
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I just swapped old 12v lead acid battery for a pair of 6v 220ah AGM batteries. It took a few days for my trimetric to read full battery voltage and amperage to determine 100% charge.
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