200W Car Power Inverter DC 12V to 110V AC Converter with 4 USB Ports Car Adapter Charger

I bought this for a national road trip. The first time I used it, only when the engine was running, it charged my laptop well (I checked the watts). It didn't get too hot. I unplugged it when I parked to camp for the night. The next day, the car battery was dead! I didn't put too much thought to it.I used it again the next day, again while driving, and after unplugging and parking for the night, my car was dead AGAIN. Now I just bought this car 5 months prior, and had left a dome light on one time overnight with no issue. So for something to make the car not start, it must be AWFUL. I threw it away. I didn't even want to give it to anyone and create a burden for them. The only reason I gave 2 stars is because it did in fact charge my laptop and at the end of the day, I learned how to change my car's battery. So I gained a skill, even if a $20 item cost me closer to $150. DO NOT BUY THIS, NOT WORTH IT!!! Go to a mechanic instead to learn how to change a car battery.

I have carcam in my car and I need to plug for power. And I often need to charge my cellphone at the same. So I ordered AllWei inverter to give it a try. Price is my main concern. AllWei’s price is reasonable and fits my budget.It has 4 USB ports and 2 AC plugs. The passengers in my car can also charge their cellphones or iPad when they need. We do not need to worry about taking turns to charge the cellphones when we on the road anymore.Our family loves to use essential oil diffuser in the car. The 4 USB ports allows us to enjoy the nice smell in our car.We also like the size of this inverter. Really portable and does not take much place.

Compared to my previous power inverter this one is near silent. My primary use was to power my MacBook Pro which is around 87w Watts. Works beautifully! One behavior I didn’t know about initially, but I really like is that all of the USB ports are powered on as soon as power is received from your car. So you don’t have to press the power button on the unit every time you start your car. The ac power is controlled via a button. For my setup this is desirable.

It has worked well so far, no audible noise coming from it. I have used it twice so far, one for a hot glue gun and the other to charge a laptop. Constant power, no flutters hiccups or gimmicks, it just works!

This inverter would sometimes work for a few hours and sometimes work for a few minutes before it would start beeping telling me it was no longer working. I work on the road all day long so this inverter was pretty much useless for me. Fortunately for me, I discovered this only a few weeks into buying it so I was able to return it and get a much better one.

I needed power to power some things up in my car that I wouldn't normally be able to do while camping. Worked perfectly right from the start .It is the perfect size for traveling, and is versatile in everyway. Enough plug ins for anything you may need, I highly recommend.P.S. Make sure to unplug when not in use so it does not drain your battery

Got this for my kids ipad's on long road trips. I used it and I had a road that was peaceful, kids were busy with their game/movies and their IPad's never discharged. Thank you.

Does not provide full 200 watts. At 145 watts, the unit beeps, and at 155 watts, it stops working altogether. Also, the fan runs continuously, not just a high output levels, which causes unnecessary noise and wear on the bearings.