
A prime selling point is the internal technology it's designed to handle high startup loads for longer than most inverters. Note that a common load nowadays laptops and electronic equipment (which use their own transverters) have a high capacitive load. Power tools usually an inductive load. So you need an inverter that won't trip out while most modern (i.e. non resistive) loads start.
For my wife's van 3 laptops and a Wii is common. For my truck for various power tools. My trusty 400W would no longer reliably handle the load. Esp at startup without a plug which in first dance.
Don't look for cigarette lighter adapter it just won't work for 800W. They're common with 400W inverters but won't reliably supply them either (12-14v x 15 Amps is about 200 watts). And even your cigarette lighter wire is usually undersized (read not for continuous use at fused amperage) So don't ding any high power inverter over cigarette lighter adapters it's a simple technical requirement.
To handle the load, I'm running new fused power wires from the battery through the firewall to the dash.
Note one trick on running wire run two 10 gauge wires instead of one large one for each polarity. Just be sure each red/positive is individually fused at the battery and the you can tie them together at the inverter (each wire is self protected safe and both together supply needed current). This is a common trick used by HAMs and others. Much easier wire to work with and fuses (up to 40A) are standard automotive fuses and holders.
Here's a link to that wiring trick (or search for "most practical powerpole size for 700 watt inverter")

I use this power inverter to power a laptop, webcam, and video camera while storm chasing. The only problem I have is the USB slot. It will not keep up with a smart phone, at least with everything powered up and charging. I fixed that issue by adding a small extension cord.
Really this inverter works pretty good. Keep in mind you're getting what you pay for. If it's cheap, don't have overly high expectations for a product to last 20 years. Mine is used and abused as it sits in the floor of my car. Passengers kick and step on it all the time and it continues to function.
All in all I thinks it's worth the purchase.....
Buy Whistler Pro-800W 800 Watt Power Inverter Now
I HAVE USED IT ONLY A FEW TIMES BUT IT FUNCTIONED PERFECTLY. I'M RUNNING THREE SMALL AC FANS ON MY PONTOON BOAT AS A TEST FOR BEING ON THE WATER THIS SUMMER. SO FAR, SO GOOD AND RAN ALL THREE FANS FOR ALMOST 8 HOURS ON TWO 12 VOLT DEEP CYCLE BATTERIES.
Read Best Reviews of Whistler Pro-800W 800 Watt Power Inverter Here
I have a 2000 watt Whistler inverter and am very happy with it (I wrote a review of it if you're interested). The 2000W version is part of a solution (package? system?) I put together to supply power for a few items I'd like to have available in a power grid failure like a hurricane or an ice storm.
Part of that solution is a pair of 12V batteries and a battery charger (NOCO Genius G7200). The batteries supply the power to the 2000 watt inverter. The charger keeps them ready or, if the grid is down, recharges them. My problem was how to supply power to the charger if I deplete the batteries and the grid remains down.
Turns out my NOCO charger needs only 150 watts to charge the batteries. This Whistler 800 watt inverter can provide that without breaking a sweat, and only needs 80 amps DC to provide it (actually, to provide 800 watts, not just the puny 150 watts my charger needs). My car's alternator provides 105 amps, way more than the Whistler 800 needs to max out.
So I bought this item and now my car can power this 800W inverter that can easily and safely recharge the batteries that supply my 2000 watt inverter. At the same time as it's charging the big guy, this 800W inverter has power to spare for lights and low-draw electronics (laptops, cell phones, cable/DSL modems, wireless routers, VOIP boxes, cordless phones, yada yada yada).
You can buy the 400 watt version for a bit less if you like, but if your car will support the 800 watt version (80 amps minimum) why would you not opt for more power and flexibility for just a few bucks more?
Nope, I don't work for these guys but I probably should :-) And yes I'm a Viner but I paid for both this and the 2000w version and all the other goodies in that system. Whistler makes a good range of products here.
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Our float was awesome with the added lights powered by this inverter.
Thanks for the deal. Good stuff with no worries.
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