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Old 09-17-2011, 04:00 PM   #1
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1992 36' Land Yacht
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Where's the power going ??

1992 landyacht 36 ft

new interstate batteries
at nascar races quiet time begins at 11 pm , so generators go off
want to watch news at 11 pm , so the inverter works fine for that period
everything is off for the rest of the night , frig on gas , lights out
every morning batteries are drained down

if i turn inverter switch off , batteries are fine

wheres the power going?????
thanx
kevin
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Old 09-17-2011, 04:19 PM   #2
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What is the size of the Inverter?
How much battery power do you have in amp hours?

Inverter sounds as if it powering something also there are many parasitic loads like the fridge has a control board as does the TV, radios, hot water heater etc.
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Old 09-17-2011, 07:04 PM   #3
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Inverter is a switching DC oscillator feeding a transformer to raise the voltage to 120. It will draw current on the 12 volt side even if you are not powering anything on the 120 side. You must turn it off to conserve the 12 volt battery.
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Old 09-17-2011, 07:16 PM   #4
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Yes, inverters do draw quiescent current even if no 120v items connected to the inverter are switched on. In the case of my small (200 watt) inverter, that quiescent current is about 250 mA, or about 4 amp-hrs overnight. No way near enough to drain a new battery. Your inverter likely draws more, but I would suspect a defect unless the inverter is driving loads you are not aware of.
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Old 09-17-2011, 09:08 PM   #5
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"if i turn inverter switch off , batteries are fine"

You may have answered your own question, how long will they stay charged when you leave the I.V. un-plugged?

Bob
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Old 09-27-2011, 04:45 PM   #6
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think i found it

youre right,,,
i thought you could leave the inverter on 24 hours a day,,,,

i only turn it on at 11 pm to midnite then turn the off/on button off,,,if i leave the inverter on all day and night ,the batteries barely start generator,,i noticed even though i have never used them , the front tv and bedroom tv probably use power,the gas refer must ,the convection micro must ,the inverter must , and i dont know what else

kevin
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Old 09-27-2011, 04:52 PM   #7
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Quote:
Originally Posted by kepko View Post
youre right,,,
i thought you could leave the inverter on 24 hours a day,,,,

i only turn it on at 11 pm to midnite then turn the off/on button off,,,if i leave the inverter on all day and night ,the batteries barely start generator,,i noticed even though i have never used them , the front tv and bedroom tv probably use power,the gas refer must ,the convection micro must ,the inverter must , and i dont know what else

kevin
kevin

See how great KISS works....

Bob
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