BESTEK 300W Power Inverter DC 12V to 110V AC Car Inverter with 4.2A Dual USB Car Adapter

A 5 volt power supply is required. My father received this as a gift - I already own one of these, so I'm giving it to me as a gift. He noticed that his laptop didn't start charging after he set it up in his car. There was no sign of life on the green light of his AC power adapter. The output voltage of the amplifier can be measured using a voltmeter, since I have it. My dad has an inverter rated at 115 volts, but he has no idea how he's going to connect it In fact, the inverter was putting out only 88 volts. A 5 volt power supply is required. Next, I measured the voltage on the inverter I was already using and it was Even so, that's still not as powerful as the charger was rated for, but it's sufficient to charge a laptop (typically at least 100 volts are needed for a laptop's AC adapter). My inverter was not up at the time, and because of this I hadn't noticed I was already able to charge my laptop with it Since I didn't measure it, I didn't bother. So then I tried to contact the warranty department for his so that I could at least get a replacement that put out 100 volts, even though that was still significantly less than what it was As a result, they recommended that I use a different voltmeter (a $150 Fluke 17B) since they thought my meter (a $315 Fluke 77, as shown in the photo) wasn't accurate enough. Since I'm a licensed electrician and have calibrated meters, I told them that I could help them It's worth mentioning too that the voltmeter I already have is more expensive. After all, a device that is supposed to be a voltmeter and is calibrated will measure the same voltage as another device like that. Even though it is the same brand, they still said to use the Fluke 17B or return it to Amazon if it is the same model. someone who works in the critical power industry, it is particularly frustrating to be supposed to put out 115 volts but only put out 88 volts. The voltage is too low at 5 volts. Although, as a child, I always wanted to go home to my father He must have broken the law to be allowed to charge devices in his car, this was definite theft I'm off now.

Maggie Velez

| May 10, 2021

The program works like a charm. This device allowed me to both use my double electric breast pump and charge our cell phones at the same time when we were on a road trip. It does have a slight hum but we could barely pick it out This is a pretty heavy-duty piece of equipment and it got bumped around a lot without dings or damage. This would be something I'd recommend to friends and family. 6 months later, here is the update I still love it it works as well as it did when we bought Having the quick charge base plugged in means we don't need to buy car chargers when we need to recharge our devices. I keep it in the center cabinet compartment and it's a good idea to plug in our quick charge base.

Rowan WALLIS

| Jan 11, 2021

I'll get there! late THE UPDATE IS The customer support sent me an email about 6 months after writing this review letting me know that a replacement unit was on its way. I applaud their actions going back and addressing unhappy customers, they must have hired a new marketing person. Having a company that stands behind their products makes me more likely to trust them. I will return in April 2021 (18 months warranty period) and let you know if the replacement unit still works when the warranty period ends. I am original writer of the following rant I believe it may have been designed to fail once its warranty has expired. It worked superbly when I first bought it, but I am afraid it may fail after its warranty has expired. While it was not being used, I kept the item in a bin with some other electronics (stored indoors, in my office in a dry, cool location) for a few months. I could not switch it on, or get it to do anything when I took it out again. Since I purchased it 20 months ago, the warranty will only last for 18 months. According to the listing on the bestek website, this product will have a 24-month Why is there a wait time of only 18 months on Amazon? As I tried to contact the company to request a return, they responded with the insulting "Deeply sorry". In spite of my providing images of the unit, I was still sent the ". " message. I am posting this review today in an effort to warn anyone considering this product not to buy it. It works fine in the beginning, but it will let you down when it matters most, and it will be non-functional 18 months after you buy.

Dilan Vaughn

| Mar 15, 2021

My Christmas lights were going to be on my Corvette on Friday for our small town's Christmas parade, so I bought this to power them. I was very pleased with the way the unit ran the lights and tree on the rear of the car.

Lyric Vincent

| Sep 02, 2020

It will not run a heater, but a deep cycle battery will work great. I love it! It's not a hiking type portable so I guess it's not for hiking) )but if not at home and no power sources are available. As if I were to If you want to camp somewhere without electricity, don't select a campground By setting up the deep cycle, you can do the following All the devices I own at home can be powered. You might also be able to use it if the power goes out. There is no way to run anything huge on it (like a space heater or something like that) But 300 watts is more than enough to get by and run most things on a road trip, away from the city, without access to electricity. In addition to the 300w model I noticed a 500w version, but that did not work for me and my deep cycle battery ran for days using this.

Colby Stephens

| Feb 02, 2021

Many of them do not work as well or as long as they claim. In my opinion, the Bestek is the best adapter I've ever owned. Having an adapter that plugs into the car and has its own cable takes the adapter out of the way of the cigarette lighter is very handy. With this cable, the inverter can be placed in a discreet location in the back seat of my vehicle where my children will use it to charge It must also be noted that this unit was consistently used on a journey from Maine to Ohio over 15 hours. There was never a time when it lost There are two USB plugs and two wall plugs on the unit, making it extremely powerful. I am glad I invested in this.

Hadley Guthrie

| Dec 07, 2020

The product arrived yesterday, and so far it appears to be working well. It appears to be very solid, smaller than I expected (not that I think much about its size), and it has a good aesthetic appearance. It is used for running a couple of fans in my RV when the generator isn't running. It seems to be working well so far. The charger was also used to recharge a laptop whose battery had run out . I had no issues with it.

We will use it for similar small items. My favorite feature of this phone is the power button situated on The lighter is not removable, so you would not have to take it out. We cannot speak to the maximum power (and will not be using it at its peak), or longevity at this time. It certainly looks and feels as if it will last, but we will not be using it that much to judge its longevity.

Kobe Carter

| Jan 01, 2021