BESTEK 150W Power Inverter 12V to 110V Voltage Converter Car Charger Power Adapter with 3.1A Dual USB Charging Ports

I have tested this device on various 12V battery packs that I have laying around in my office. I specifically purchased it for a small application to make some of my electronics projects more portable to move quickly to other places in the workshop. This device has helped charge varioius macbook pros, run small 12V .03A fans for hours on a 12.6V custom 18650 battery pack with 1A output and the inverter powers the whole things flawlessly. I even tested the over protection circuit with a small saw and it cut the power and protected the device before blowing up the battery pack. Yes the fan is always going to run, you should know that. It's a inverter meaning that it's taking a smaller powered battery and stepping up the power which guess what generates heat folks! The more power your draw, the louder the fan. Why?! Because it would otherwise be a fire hazard and overheat. A possible solution would be add a heat sink but that would make the device bigger and still require a fan. Stop leaving bad reviews for fan noise, that that is a side effect of using an inverter. This device does exactly what it says and works very well. I have tested all outputs at once and it still works and doesn't trip the over power protection. Of course though, I plug in devices that match the specs. Don't always believe what you see on the back of each device, use it as a guideline. You need to take a percentage of that value and accommodate for variance in device draw under load. If you over power the device, that is on you, not the device.

Great purchase. Works great. We used it for an inflatable 4th July rocket for front of truck and it worked a great. My husband didn’t know they made those so he was very happy

I ordered this while getting ready for a long Orlando trip. I purchased this primarily for charging and running my laptop in the car, to play movies for kids. However, I found it giving best charge for my phone and iPad as well. For some reason, my phone's car charger and iPad's car chargers were very slow to juice up those devices. With Bestek adapter, chargings were quiet fast. It came in handy as we had two phones, an iPad, my laptop and occasionally my DSLR's Li-ion battery. I like this product very much, with pros described through above accounts. There not many cons with this product. If I have to be nitpicky and must find one, then only con I saw was the noise it makes with its built in fan. It makes louder noise when initially plugged in and it's getting ready. After that, with other noise (that of a car being on the road and music in the car, etc.), I couldn't notice the noise. For this, I took away a star. Really wanted to take half or qrtr star off, but there isn't such option. :-)

If you have rechargeable battery operated tools and drive to where there is no power to work you need this.

I wanted this to charge a battery for a portable/cordless tire inflation tool with a rechargeable battery pack that I could carry in my car and not have to rely on a corded inflation tool that plugged into the lighter receptacle. This had plenty of "juice" for the job, and its little cooling fan is pretty quiet. I plug the battery charger into the inverter which goes into the lighter receptacle, then connect the battery to the charger. It charges quickly, and when fully charged, I just snap he battery into the inflation tool. This way, I never have to worry about a cord or the battery running out of charge.

Muy bueno

I bought this 150 watt inverter and its corded brother also 150 watt, mainly for use in car, by passengers needing device charging/entertainment/etc. But it is also useful for emergency charging of cell phone via USB and for emergency light with a florescent (CFL) light off the 110 volt output, when plugged in to my portable jump starter which has a 12VDC port. In case of short term power outage at home, I can get at least one room-filling (60W equivalent) light on quickly when power goes out, and buy time to figure out the next steps in case the outage might last days;( Electrically, both tested out fine, in car and with the jumpstarter as an emergency source. The phones charged and the plugged-in light worked (just a normal table lamp with a 60 watt EQUIVALENT CFL, which is basically 8-10 watts draw), in the car and with the jumpstarter DC socket. Unlike another review, the CFL light (like you get from any big box store now that incandescents are being phased out) worked just the same off both inverters as when on the normal wall power, as far as I could tell. I did not try either inverter with any noise-sensitve equipment like sound equipment, or any wall-wart transformers 110 to whatever. I might wonder about that except most things that need a wall-wart could use 12vdc or 5vdc off the USB anyway. But, I like to point out, that this "all in one" version with the 12vdc plug and body together, does not stay in a 12vdc vehicle socket very well. The inverter end-part is heavier, and tends to work the whole thing out of the socket over time/bumps. The cigarette lighter plug-part, needs better springs on the side to stop this. The corded version, although the springs are the same, stays in better because the whole weight of the inverter part is not held by the springs. Probably I will keep both, but get another/better 12vdc plug-part from somewhere and hardwire it like a small extension cord onto the one piece inverter. Hopefully I will not destroy it in the process. But the 2 piece (plug-wire and inverter head) is a better bet, and probably is easier to fit most vehicle sockets esp. if they are recessed in a console or something. Trade off is the extra wire can be sloppy I guess in the car. jim

Works ok ish. There's a cheesy fan in it that makes noise and it doesn't really charge at 2 amps.

Works great for putting air in mattress for camping

Good product for the price. This inverter proved useful on a camping trip when I needed to pump up an air mattress. I now keep this inverter with my camping gear just incase. The short neck of the inverter can be problematic. The neck is short and the inverter portion is bulky and therefore cannot fit in tight places. The inverter did not fit in the cigarette lighter receptacle near my cup holders, however I had a second receptacle where it did fit.

This thing sounds like a jet engine, charges slowly and after a few months of use, threw out. Avoid

Bought this to use with my Starlink on the pipeline. Worked great for 2 weeks. It stopped working today.