|Item Weight||1.9 pounds|
|Product Dimensions||6.5 x 4.2 x 2.6 inches|
|Item model number||CPI480|
|Height (inches)||5 inches|
|Width (inches)||5 inches|
Cobra CPI 480 400-Watt 12-Volt DC to 120-Volt AC Power Inverter with 5-Volt USB Output
- 400 W Continuous Power Handling
- 5v USB output
- 2 Grounded AC Receptacles
- Thermal Shutdown and Reverse Polarity Protection
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This inverter provides household power on the go! It converts battery power to 120 V AC household power, allowing you to power up office equipment and household appliances from your vehicle. It also has a USB output, ideal for using/charging most small video games, an IPod®, a Blackberry®, mobile phones, and many more USB devices. Cigarette lighter cord and direct-to-battery cables are included. This unit is ideal for laptops, 13" TVs, video games, CD players, DVD players, cellular phone chargers, and much more!
Legal DisclaimerManufacturers warranty 90 Days or longer
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Update 2/24/14 - New One
I received the second unit Friday, and this is Monday. I moved the old one to my second system, and set this one up in its place. Out of the packaging I noticed a couple changes to the model. First, the gray portion of the body is now plastic, not aluminum like the previous model. Still seems sturdy enough, but it probably does not shed heat as well as the first.
Second, the USB charging port has been moved from between the AC outlets to above the right outlet. This is a good thing, because a few weeks ago with the first unit, I was watching a movie near dusk. After the movie finished, I decided to plug in my light to do some things. The light seemed to be acting funny, low power and a flicker. I figured it was the ballast warming up. I did not unplug the light when I went to sleep, just turned off the inverter.
The next morning, when I went to turn on the inverter, I noticed that during my fumbling in the dark to plug the light in, I had plugged one prong into the AC outlet, and the other was in the USB port! Surprisingly, it did not kill the inverter, the USB port or burn the house down, so moving the port to the position above the outlet is a good change.
The fan on this one is just as loud, but with just the satellite plugged in, the fan cycles on for 3 seconds, off for 10, then repeats. By far this is more annoying than a constant noise that fades into the background after a while. With just the fluorescent plugged in, the fan does not come on at all, opposite of the first. I think I may swap the two inverters, so that the new one is running from the system with more draw, allowing the fan to run constantly instead of the constant cycling.
I have not opened either unit, but from what others have said in their reviews, the fuses are soldered in. Had I known that, I would not have bought either one, as I use them for my main power source, and having to break out a soldering Iron when a fuse blows is ridiculous. My generic inverter has to be taken apart to change the fuses, but once there, it is a simple swap, and takes only a few minutes.
I have had 2 of these Cobra inverters, one for over a year and, the second, exactly a year. With, the newer one I did something really stupid and killed it, totally my fault (don't tap the inverter to get the fan to quiet down on a cool morning, the inverter may break and stop producing power :) ) . The first one is still chugging along nicely. I use it to power my computer and, sometimes, a set of computer speakers and lights off my solar system. It is still a bit loud, being that it is 5 feet away, but it has performed flawlessly. It has experienced numerous low voltaqe incidents, and, thanks to my cheap charge controller that does not shut off power when the batteries are full, even more high-voltage cutoffs. I have to say that it's a trooper, and, so far, the desert dust has not managed to kill the fan.
Changed to 5 stars. The first Cobra has been running for 2 full years now, with at least a 100 watt load, for at least 8 hours a day, every day. Tough little thing. The noise is a bit loud, and the fuse is internal, but the point is that it provides the power I need to live. Good deal.
Oct. 30, 2015...Still working great.
UPDATE: Accidentally charged my battery for two days, so it got fully charged,....I got TWENTY cups of tea...and it did not go down past 12Volt!!! Super!!! Inverter working great...Jan 23rd..2015. If I had realized the battery needed to charge up to 13.8 volts to be fully charged, I could have used the other inverters...but still, if HAVING to go below 12v, their alarm would have gone off...the Cobra does not go off until around 10.5-ish...so that is great.
One star off for the 500ma USB port. Some have 2.1a for charging tablets...not really a biggie for me. I have 12v 2.1a Car charger for that if needed...but still...THESE DAYS, it should have been upgraded. Other than that, IT IS PERFECT SO FAR.
I have a 14-15 year old generic Chinese 400w inverter, I got it for my portable jumpstarter and it works well, however, it shuts down at just under 12v. I only get 5 1/3 uses with a 300w one cup coffee maker from 13v or so full charge. So...tried to find a 400w inverter that, like my 1500w OSP Tiger Claw, goes down to 10.5v before shutting down.
Tried PowerBright. Nice inverter, but squelched like a Banshee at just under 12v...low voltage alarm is set too high. Only got 5 cups out of it too. NEXT...tried the Thor 400w, which also has a 2.1a USB port, does not need to be ON to use, but it too shrieked loud at just under 12v...(sigh).... The back terminals on the Thor are also too close together and have a slight notch, so they don't fit bigger cables with wider O-ring terminals.
OK...tried this Cobra....I just got SEVEN uses and no noise under 12v....SWEET....This is the One for me!!! SO FAR...
Fan only comes on when needed...less noisy than my generic Chinese old thing. I would not mind this on a trip.
My use is a 100ah 12v RV Deep Cycle Battery. I can solar charge it. Also Battery Tender type charger. I use it for a 300w one cup coffee maker....mostly for tea, and hot cider.
With the included alligator clips I get 244-249w...82-83-ish efficiency...Hardwired with 4 gauge cables I get 252-254watts...so better connection...and a little better efficiency. The PowerBright was 90% at 279-ish, my Old inverter is also 279-ish...and the Thor was lower at 250 or so...So the Cobra is comparable....and 14 bucks CHEAPER!
Not a bad deal. Hope it lasts.
UPDATE:Dec 15....Got 10 cups with my one cup coffee maker. Voltage dropped fast below 11.5 to 11volts, only got about 1/4 or 1/3 cup on the 11th use. Still could not be happier. I get twice the cups with this inverter before low voltage alarm, and that was my goal. OK...4.5 Stars...