Power jack inverter from tiawan bought in march deliverd in june was supposed to be 3500 watt with 50 amp charger built in it runs on main power when main power is cut it changes to inverter mode ie 230 volts from 12 volt battry when power back on changers back to mains power and puts battry charger mode on till 90% battry chargedhave been trying to get power jack to send parts to fix they sent replacement and it did not funcion properly 1 st one worked only on inverter mode 2 nd one worked only on mains mode at no time did battry charger mode come on we changed a board they asked us to remove and refit we put either board in the other inverter and both inverters worked as when first installed please can you help my name is steven hayes you have my email address or my mobile number is 07737388228 i would like to get working properly as not cheap
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Most power inverters require the vehicle to being running to operate, and make sure it's the correct wattage, if it's a small watt inverter it doesn't have enough power, as a coffee machine is considered higher wattage, hope that answers your question ?
It sounds to me that you have a load that draws too much from time to time. If the inverter will run without a load without a problem, try adding loads one at a time until it starts to trip off. That should give you an idea as to what the problem is. It could be that there is a problem internal to the inverter that causes it to trip prematurely..
Without knowing make or model other than 600 Watts and pure sine output: http://www.donrowe.com/user_guides/samlex/ssw_series.pdf is for a series of pure sine inverters, yours should be similar enough to the 600 Watt version to be of practical use.
Let us look at the math. 1250 watts at 120 volts is w=va Watts equals volts times amps. Or in this case 1250 divided by 120 volts = 10.41 amps. But what is the 12 volt side capable of drawing. 1250 watts divided by 12 volts. 104.10 amps. This is more than what the average cigarette lighter or power port can provide. So, yes you need to connect directly to the battery, you can use a relay rated for 100 A in between the inverter and battery to control the power to the inverter. I would use a good #2 copper welding cable for the power leads. Now, if you are not planning on using the whole 1250 watts, then you can use a #4 welding cable (it is very flexible) for power leads.
A 5000 wat inverter is very large. Your alternator could not supply it alone without the batteries. The moderate to low usage is the key. Calculate the wattage of the load you want to connect. Depending on what else you're doing with the truck, lights, heater, air condition etc, you could probably draw somewhere between 1,0000-1500 watts on that alternator. Rember even if your alternator is rated for 150amps (large alt) it is not a 100% duty cycle. Alternators are usually around 50% duty cycle, so figure about 75amps continuous, or around 900 watts. That's considerably less than your 5,000 watt inverter. Buy a generator.
Your inverter has a peak of 3000 watts rating and should power that hair dryer. Make sure your batteries are in good shape. The inverter can only put out what it takes in. 1800 watt demand on the inverter requires 1800 watts from the batteries.
I would not do this, you really need a pure sine wave inverter to guarantee the safety of your CPAP machine. At the price they are selling this device it could not be pure sine wave. 150W pure sine wave would be $70-$100.
The amp meter on this unit measures the battery current. So if you have an 8 amp load at 120 vac you will draw more than 80 amps at 12 volts and 40 amps at 24 volts. While this may not explain the 180 amps that you are seeing -- it's possible that the dryer is drawing more than 8 amps.
If you got the store bought APC 350 UPS, you most likely overloaded them, and killed them beyound repair.
People should never buy a 350VA. They are way to small for power supplies most of us now have. you need to start out to 1000VA plus you need to do the math to figure out how big of a UPS you actually need in the show room. What am I talking about?What is the significant, or the math of what I am saying here.115V x 1 amps =115VA x.778 power factor = 89.47 wattsStart up 50 watts = 39.47 watts 115V x 2 amps =230VA x.778 power factor = 178.94 wattsStart up 50 watts = 128.94 watts 115V x 3 amps =345VA x.778 power factor = 268.41 wattsStart up 50 watts = 218.41 watts 115V x 4 amps =460VA x.778 power factor = 357.88 wattsStart up 50 watts = 307.88 watts 115V x 5 amps =575VA x.778 power factor = 447.35 wattsStart up 50 watts = 397.35 watts 115V x 6 amps =690VA x.778 power factor = 536.82 wattsStart up 50 watts = 486.82 watts 115V x 7 amps =805VA x.778 power factor = 626.29 wattsStart up 50 watts = 576.29 watts 115V x 8 amps =920VA x.778 power factor = 717.76 wattsStart up 50 watts = 667.76 watts 115V x 9 amps =1035VA x .778 power factor = 805.23 wattsStart up 50 watts = 755.23 watts 115V x 10 amps = 1150VA x .778 power factor = 894.70 wattsStart up 50 watts = 844.70 watts 115V x 11 amps = 1265VA x .778 power factor = 984.17 wattsStart up 50 watts = 934.17 watts 115V x 12 amps = 1380VA x .778 power factor = 1073.63 watts Start up 50 watts = 1023.63 watts 115V x 13 amps = 1495VA x .778 power factor = 1163.11 watts Start up 50 watts = 1113.11 watts 115V x 14 amps = 1610VA x .778 power factor = 1252.58 watts Start up 50 watts = 1202.58 watts 115V x 15 amps = 1725VA x .778 power factor = 1342.05 watts Start up 50 watts = 1292.05 watts 115V x 16 amps = 1840VA x .778 power factor = 1431.52 watts Start up 50 watts = 1387.52 watts 115V x 17 amps = 1955VA x .778 power factor = 1520.99 watts Start up 50 watts = 1470.99 watts 115V x 18 amps = 2070VA x .778 power factor = 1610.46 watts Start up 50 watts = 1560.46 watts 115V x 19 amps = 2185VA x .778 power factor = 1699.93 watts Start up 50 watts = 1649.93 watts 115V x 20 amps = 2300VA x .778 power factor = 1789.40 watts Start up 50 watts = 1739.40 watts