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Old 05-27-2011, 02:13 PM   #1
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Inverter Question

Hi Guys, Never had tried my heart interface freedom 20 inverter, so last weekend I unplugged from shore power, checked my batteries levels (13.2 - 13.4 house and chassis) pressed the invert button on my oneplace panel and switched on the tv....I then checked my batteries level again and noticed the numbers started to drop. After a couple of minutes I checked again and the house battery was down to 12.6 with the chassis battery close behind. I switched off the invert function. My question is: is this normal, would the voltage have continued to drop quickly or would it have leveled out to a more normal drop rate. I didnt want to flatten my batteries as I had to return the bus to my storage location. All batteries are newish and have performed great since being installed.
Thanks in advance,
John
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Old 05-27-2011, 02:21 PM   #2
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Perfectly normal. The higher voltage is from the charger. As you use the batteries/inverter to power your AC appliances the battery voltage will lower. When it gets to about 12.2 volts they are at about 50% capacity and should then be recharged.
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Old 05-27-2011, 05:11 PM   #3
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12.6 is, as I recall without checking the charts, Normal full charge resting voltage.

The batteries will show a higher voltage when you first unplug from shore power,, normally. This higher voltage vanishes very quickly however.
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Old 05-28-2011, 10:26 AM   #4
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Inverter

Thanks guys for the responses, big sigh of relief here, I was beginning to think my new batteries might have a problem, or the inverter was faulty. Just goes to show "ignorance is bliss" doesn't always apply.
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Old 05-28-2011, 10:48 AM   #5
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Quote:
Originally Posted by Golfinscorp View Post
Thanks guys for the responses, big sigh of relief here, I was beginning to think my new batteries might have a problem, or the inverter was faulty. Just goes to show "ignorance is bliss" doesn't always apply.
I came across this website that compares battery voltage to its state of charge that may provide a level of comfort when using your batteries.
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