Best Power Inverter For RVs, Autos, Tailgating, Camping & Doomsday Survival

The Cobra CPI 890 12V DC to 120V AC Power Inverter along with portable solar panel and car batteries could help a prepper survive a doomsday event.

Perfect For Tailgating, RVs, Autos, Camping, Emergency Power, Survival & Doomsday Preppers - Cobra CPI 890 12V DC to 120V AC Power Inverter

The Cobra CPI 890 is a quality 800 watt inverter that is capable of powering a wide range of devices and appliances. Use it in your automobile or RV, take it camping or tail gating along with 12V car or marine batteries and you can have AC power whenever and wherever you need it. Preppers can use this inverter with a portable solar panel/controller and scavenge car batteries as needed to have AC power for an extended time in a Doomsday scenario. is reader-supported. When you buy via the links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Why you might need it

The Cobra CPI 890 can power up to 800 watts continuously. Check the wattage on your devices, but typically devices such as the following can be powered from this inverter: small and some larger refrigerators and freezers, TVs, microwave ovens, coffee makers, pumps, radios, fans, several 150W halogen lamps, a 250W reversible drill, cordless drill chargers, computers, etc.

This inverter can also keep your cell phone and hiking GPS charged. Another higher wattage Cobra model is also available as described below. If Doomsday ever occurs, preppers could use this inverter along with a solar panel, controller and 12V DC car or marine batteries.

Additional Details Why This Inverter Is Superior To Others (click to expand)

This particular inverter is rated for 800 Watts continuous and 1600 Watts peak, and has built in protection to shut itself down if you do overload it. It has two AC outlets and one 5V USB Outlet. You can buy cheaper inverters rated at one half or less of the wattage, but you get what you pay for.

Most of the cheaper inverters are rated at lower wattage (like 300 watts for example) so you are more limited on what you can power. And these cheaper inverters, although they have overload protection, they usually do not have external fuses as the last level of protection. Instead they have internal circuit boards and a fan. So they are more disposable.

The Cobra model above has external fuses in addition to 5 levels of protection for thermal shutdown, reverse polarity protection, over-voltage shutdown, low voltage shutdown and low voltage alarm. It is also available in higher wattage capacities, as are other more quality and more expensive power inverters.

For a higher price but still a great value, you can upgrade to the Cobra CPI 1590 rated for 1500 Watts continuous and 3000 Watts peak (link below). For example, the higher wattage model (link below) would allow you to power a 400 watt coffee pot and a 1000 watt microwave simultaneously.

Added Tip

Note that both of these Cobra inverters produce modified sine wave power instead of the pure sine wave power produced by your power company. Pure sine wave inverters are available but cost significantly more.

Pure sine wave inverters are needed for appliances requiring a precise frequency power supply (timer, measuring instruments, etc.), Sine wave appliances, and appliances using phase control such as blankets, dimmers, etc.

YouTube Video

The following video is a review of the Cobra CPI 890 800 Watt Power Inverter.

Sample Amazon Feedback (click to expand)

"Highly recommended!!!!!!! I bought this inverter October 25, 2011 and I must say that in the over 3 years I've had it, it has done me very well. I use it in my mobile lock shop (van) to run tool with. I am very pleased with it and would definitely buy this again. I highly recommend this item."

"Great inverter. Had this for some time now never let me down it's got over load shut off and 1600 watt peak power so can power almost any thing I want and if I power so much stuff it shuts it's self off so I don't mess it up"

"Had this a long time use it every weekend works great."

"Got this to put in my little RV. I was looking for something small enough to not draw down the one battery I have in the Coach. Installed under a cabinet close to the battery and ran 10 ga wire to it. Plug in the Coach electrical cord to it and turned it on. It will run a Radio or TV or the Microwave or the Fan in my A/C but not the A/C itself which would take about a 3000 watt inverter which would drain my battery really fast! I watched TV and listened to the radio for 2 days and finally ran the battery down running the A/C fan on the second day. It's a little workhorse. Good for the price too!"

"Plenty of power. Am using it as a power supply off a Group 24 battery that is replenished by a Renogy 100W solar panel. The two AC outlets and USB ports provide the power I need for a CPAP machine and other devices."

"Nice converter. Very nicely built and seems to do a good job converting from a Car charger b/u battery really well. I've also jump started my riding lawn mower several times and it seems to have plenty of reserve. I've used it to power a P.A. System and using a 200+ Crown Amp and Bose speakers, a mixer and keyboard which runs quietly and easily for over an hour, converting the power from a 800 watt b/u battery. The line seems clean and noise free using this converter."

"Excellent inverter but read manual to understand what 800W means..... I have run a full load test that meets the expectation.

Following electric equipment were used for testing at the same time:

  • A Desktop PC + 65W TDP CPU + 3 hard drives + LCD Monitor run in graphic mode -- roughly 80W+ (max 125W)

  • 1 150W Halogen lamp

  • 1 71W Incandescent lamp

  • 1 3/8 reversible Drill -- max 3A -- roughly 250W at testing

  • 1 1/4 reversible Drill -- max 2A -- roughly 150W at testing

  • 1 cordless drill charger (5W, small one)

Average power consumption tested is 700W (peak close to 800W -- which is not suggested by Cobra for run over a hour. Cobra says that inverter MUST take 15 minutes break when inverter works at 800W output for a hour, so be careful.) When power consumption (inverter output) reach 400W+, the cooling fan speeds up, and blow more noise. When starting both drills simultaneously, both lamps had slightly dimmer then back to normal; computer had no problem. It works as its specification and next thing is to wait to see its life span."

Check Current Prices & Availability:

NOTE: If this particular inverter is not available, search for one that has external fuses in addition to protection for thermal shutdown, reverse polarity protection, over-voltage shutdown, low voltage shutdown and low voltage alarm.

Recommended Accessories

Other Higher Wattage Cobra Power Inverter Model

Recommended Portable Solar Panels & PowerPacks

We have another article Best Foldable Solar Panels & Portable Power Stations In 2021 that lists and compares the best foldable solar panels & power stations and their features.

Return to Top Survival Preps

Share This Page On Social Media!