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The batteries on my narrow boat ran low and the inverter appears to have cut out. We have recharged the batteries but there is still no power output. The inverter is live because there is a low power warning light flashing. Does anyone have any suggestions? Tony G

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It's quite possible that you are charging your batteries with a "smart charger." The problem with some smart chargers is that when a battery is drained below a certain voltage, the charger assumes the battery is a lost cause and stops trying to charge it. You may have to get a cheap "dumb" charger to bring the batteries up to a reasonable voltage before turning things back over to the smart charger.

Posted on Jan 13, 2009

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Batteries won't charge with shore power and generator, have checked fuses. Inverter works until batteries get to low.


not knowing model number its impossible for me to determine if your inverter has a battery charger , not all do some require a external one , most charge off aux engine alternator this same engine also makes compressed air and hydraulic power for controls and steering , mid size boats use one engine for all this plus main drive , larger ones use a separate engine for these functions (safer)

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I buy a new power inverter ERP 2300 12v/220Volts


What does the inverter over 600 Watt.
By what type of battery is the inverter supplied? How many Ah? What is its state?

In order to achieve 1000 Watt for 1 hour you need a fully charged 12 V / 100 Ah lead-acid battery.
If your battery is less then 100 Ah and is not very well charged or old (bad) you may not have over 600 W, but not bacause of the inverter, but the battery.

If your inverter stops due to low input voltage (you can see it in the digital display during operation).

If you want to check the real output power of the inverter you should connect it to a big (more than 200 Ah) well charged battery.

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My 24v 1500w inverter cuts out when i use my 700w microwave?


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Your inverter will continue to switch off if your if you battery is
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  2. Has a low ampere rating
The solution is to get a battery with a higher ampere rating like 200ampere/hour and above, connect it in parallel to the other battery i.e. the positive terminal to the positive terminal, the negative terminal to the negative terminal. This additional will accommodate the excess power needed for the microwave to start up.

Note that it is not advisable, to use this type of power appliance on a small inverter .Use a battery with the same volt rating i.e. a if you use a 24volts battery get another 24volts battery with a higher ampere rating

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1 Answer

Can this equipment be used bidirectionslly? i.e.


you can use an invertor to power a battery charger to charge the boat battery but you could not use the invertor to charge the battery it was running from as the invertor will use power faster then the battery could be charged

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2 Answers

MICROTEK INVERTER HELP


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Oct 02, 2009 | Power Inverters

1 Answer

New batteries new cables still 99 volts output from trace inverter


What kind of inverter is it and what kind of meter are you using to check the voltage with? If the inverter puts out modified sine wave, you have to use a true rms volt meter to accurately check the voltage with. A non rms volt meter will show a low reading.

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Hi, i've got a skytronic 300w soft start inverter making loud beep and then cutting out. I know its one of the safety cut outs but not which one. can it be repaired ? thanks


If your appliance draws over 300W or if your 12 v battery charge is low you will get a loud beep warning. Do you get the same beep with a low current appliance like a lamp? Make sure your battery has a good charge.

Some appliances have huge draw at start up even though they are rated under 300w your inverter may not be able to start.

Also some electric motors don't like modified sign wave inverters.
What are you trying to run and what is its rated watts?

I had my inverter beep when I had it connected via a cigarette lighter plug but when I used a connection straight to the battery it worked fine.
I was running a 500w grinder on a 1000w el cheepo inverter.

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96 volts is low. 106 volts is low. You need to be about 110 to 120 volts optimum. How is your battery input? This is crucial for the inverter to output correctly. If it needs 24 volts DC in Then make sure it's 24 volts. 48 volts means 48 volts. Check the battery voltage and compare to inverter input requirements first.

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I have to power 1800 w for 12hr a day! I currently have Vector Max SST 3000w 20 Duralast 31-950 950 Cold Crankin Amps 195 Reserve Capacity Schumacher se-3000 Charger Do i need to change or add anything to...


I think the problem might be your battery setup.
First of all, these batteries are not deep-cycle batteries they may not tolerate this kind of usage. Secondly, if you have 20 batteries connected in parallel they could end up working  against each other (draining each other) all the time.
You might do better with 2 very large 6 volt deep-cycle golf cart or fork lift batteries. 

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