Question about Cobra Electronics - Others
Posted by Anonymous on
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Posted on Jan 02, 2017
in a word no!,,,,it cannot and you may blow it up if you hook it up to the 115ac volt supply,,,in side it there is a switch mode power transistor,,that bumps up the 12 volts to 115 volts it only works the one way,,that is 12 volts dc in and 115 volts ac out,,,,
Posted on Feb 22, 2010
Testimonial: "Thank you for the info and keeping me from blowing up"
If the inverter is blowing the fuse immediately upon plugging in the inverter (before you even plug something into the inverter) you most likely have a short in the 12V power cord. If you have an Ohm meter, you should be able to check the resistance across the two contacts on the 12V plug of the power cord. Wiggle it around some. If you get a very low reading, and especially if it's intermittent, you have a bad cord, which should be pretty easy and cheap to replace. My experience with these cords has been that their quality is pretty poor.
If that is the problem, maybe you can cannibalize a cord from an old CB radio, but here's a fairly heavy duty one on Amazon (they don't give an amp rating though) http://www.amazon.com/Truckspec-TSPSCBH-2CP-12-Volt-Platinum-Replacement/dp/B001JT5QF0
Posted on Feb 23, 2010
Testimonial: "Al, the idea on the Powerline appears to be the correct solution. The R was very low as you predicted. I'll change out the powercord. Thanks !"
SOURCE: power inverter
There are 8 40A fuses inside this unit. In the following pics you will see a bank of 4 and another bank with 3 of the 4 removed. I'm currently working on mine as it will cost me more to ship and have Cobra repair than I paid for the unit ($133 to repair). Good luck with your problem
Posted on Aug 24, 2010
15/16 amp would be recommended.
You could to try a 20 amp, but you will risk overheating and the possible failure of the vehicle circuit fuse.
Posted on Jan 30, 2011
SOURCE: cyberpower 1000 watt 12 volt
When the wattage of an invertor is specified it is meant for the power load but with a gradual CURRENT drain. If you load with modest loads of lighting , fan or other low wattage device it will work without tripping off. In this case your microwave when loaded will initially start up with a large surge current requirement thereby shutting off the invertor as it detects overload. So the safe limit to operate a microwave is to have an invertor above 2000 watts . If the input supply is 24 volts , then it will be more powerful.
Also try with a low wattage/heating setting on the microwave, tighten the battery terminals of the battery . Sometimes it might start but can also damage the invertor. failure of the driver MOSFETS.
Posted on Jul 12, 2011
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