Bestek 300 Pure Sine Wave Inverter: Review & Test

Bassguitarist1985

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Bought this on an Amazon Lightening Deal for $42 USD. I was not able to load test to the rated 300 watts, but I know it can. Ideally running at 150-180 watts is a nice happy medium to keep the inverter running cool.
This inverter is great to run in the car for laptops, tablets, small lights, and other small devices. For HAM radio and audio applications it is not the best inverter as it lacks any switching frequency filtering. There's is a decent amount of EMC on the AC side that is audible on my practice amp. However with proper filtering that can be eliminated. most other devices that EMC noise won't matter at all.
Overall, very good deal for a small sine wave inverter!
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Опубликовано:

8 июл 2024

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Комментарии : 61

@clarencequickies Месяц назад

I use the same Bestek 300 exclusively to power an AC heated mattress pad when I'm camping. The pad controls will not work with my larger modified sine wave system. To get peak power I cut off the 12 volt plug and attached terminal lugs, being very careful to not reverse the connections. The lead wire with the white stripe is the positive connection on mine. My Bestek 300 is on it's second camping season and works very well for me.

@Bassguitarist1985 Месяц назад

Very cool! Yeah it's very capable for its size!

@jcondon1 2 года назад

Great deal. I think I paid $35 for my square wave inverter I use in the car. Might be time to upgrade. I like you batter bank/charger/inverter setup in your basement.

@Bassguitarist1985 2 года назад

Oh yes. Lasts a long time if just running lights.

@jcondon1 2 года назад

@@Bassguitarist1985 That's exactly what I want to do. Move one or two light circuits and that's it.

@Bassguitarist1985 2 года назад

@@jcondon1 ill send you a video on it

@Bassguitarist1985 Год назад

Thank you for the information. If you would like for either of us to do a tear down on our page be more than happy to show off your product.

@troyyarbrough Год назад

I bought the Giandel PSW 300 watt inverter. It came with the 12v cigarette lighter plug hard wired as well. Even if I connect it straight to my fully charged battery bank I cannot get more than 180 watts out of it before it goes into fault mode.

@Bassguitarist1985 Год назад

That's normal you cannot pull more than 180 watts from a cigarette lighter adapter. It likely can surge up to 300 watts for half a second.

@troyyarbrough Год назад

@@Bassguitarist1985 You misunderstand. I cut off the cig plug and wired the leads straight to my battery bank. Cannot get advertised wattage from it no matter what I do. I call it false advertising.

@Bassguitarist1985 Год назад

@@troyyarbrough I agree. I don't think it was ever intended on being 300 watts continuous. 300 w peak yes but that's where the false advertising comes in. It's a cheap Chinese knockoff unit. The only inverters worth the damn that are built better and engineered are samlex inverters imo

@troyyarbrough Год назад

@@Bassguitarist1985 I agree. You get what you pay for. lol By the way, I came to your channel because of James Condon's recommendation.

@Bassguitarist1985 Год назад

@@troyyarbrough awesome thank you! Yeah him and I have been collaborating often. And we dont live too far from each other. Thank you for watching!

@PaymentIsDue Месяц назад

Hi nice video, thank you. I want no buzzing sound, I'm using it for an audio application as well, which inverter do you recommend? I will pick one from Amazon. I would really appreciate your help

@Bassguitarist1985 Месяц назад

Samlex pure sine inverters are very well made but pricy

@johnhenry5197 10 месяцев назад

Do you know if there is a fuse in the 12 VDC socket itself? I see the tip appears to be threaded suggesting there could be a glass fuse in there. Thanks.

@Bassguitarist1985 10 месяцев назад

No, the fuses (two 15A) are located on the circuit board inside the unit...soldered in. 🤬

@johnhenry5197 10 месяцев назад

Thank You@@Bassguitarist1985

@Bassguitarist1985 10 месяцев назад

@@johnhenry5197 My pleasure!

@brostugen Год назад

Question, can I plug in a PS4 slim drawing 150amp and play games in the car?

@Bassguitarist1985 Год назад

You need a bigger inverter than this one for a PS4

@brostugen Год назад

@@Bassguitarist1985 Thank you

@voltworks1819 Год назад

150A*12=1800W, that means you need a 2000W inverter

@mosesavraham Год назад

You must be wrong.. ps4 draw around 300watt max.. the slim version will draw around 165watt. which means around 25amp or 12amp over 12v connection.. i have no idea where you got 150amp... i can only guess you mixed watt with amps.. its on the edge of this inverter maximum power, anyway you might be able to use this inverter to run your ps4 slim on it.. hopefully it won't blow the 15amp fuse..

@brostugen Год назад

@@mosesavraham Oh yes, I mistakenly wrote Amp instead of Watt, my Bad, thanks for noticing the error😆

@MrBobWareham Год назад

I have seen it reviewed with an oscilloscope, but the wave for under load was not a true pure sine wave, it distorts very badly, so I would not purchase one, but thanks for the video

@Bassguitarist1985 Год назад

It's great for low power applications but at best it can do 180 Watts continuous. It's when people start to push it at over 200 Watts and under 300 watts you see the waveform distort because the input step up circuitry is insufficient to sustain. Samlex, Go Power and Thor are all extremely well designed brands but they are also costly.

@cj0204 Год назад

If it’s plugged into a cigarette lighter but nothing connected to it. Would it still kill your battery if the car is off?

@Bassguitarist1985 Год назад

If the power switch is off then there should not be any parasitic draw. However if the switch is on and the inverter is running without any loads connected to it yes it would eventually drain your battery as there is an idle current on any inverter.

@cj0204 Год назад

@@Bassguitarist1985 appreciate the info!

@enderiskender2977 Год назад

@@Bassguitarist1985 if it won't be a burden may i ask you what is the idle draw on the battery while inverter is active?

@Bassguitarist1985 Год назад

@@enderiskender2977 Hey Ender, that I am not sure but I can certainly check I'll get back to you later today.

@enderiskender2977 Год назад

@@Bassguitarist1985 that would be great. Thank you.

@PBPotter 2 года назад

What inverter would you suggest for audio use?

@Bassguitarist1985 2 года назад

Samlex ive had great luck with. Their models have to meet far higher FCC and NEC code standards.

@PBPotter 2 года назад

@@Bassguitarist1985 Thank you for answering me. I went with the Samlex 300W. You've been a great help.

@Bassguitarist1985 2 года назад

@@PBPotter let me know how it performs I know that they have much more strict quality control and output quality. Even if there's a little bit of noise on there you can use a corecom filter to get rid of all of it

@RhinoDan 2 года назад

Hello, I am looking for a inverter for my laptop in my transit RV van conversion. I only need around 180 to 200 watts. I have a blue sea fuse box 50 amps and two battle born batteries with victron electronics. I ran a 12 volt outlet with 10 gauge wire if I run a 30 amp fuse can this inverter run my laptop?

@Bassguitarist1985 2 года назад

@@RhinoDan yes that will be plenty on the fuse, battery bank etc. Laptop will run just fine.

@M9A1MAN 6 месяцев назад

Modern cars are fused at 10 amps at the cig port.

@Bassguitarist1985 6 месяцев назад

Define modern. My 2017 car is fused at 15A

@pa_maj.MARTINI-van-MAN 4 месяца назад

@@Bassguitarist1985 In the UK, I've always been told not to exceed 10 amps...120 Watts max. I'm not sure if this is the same elsewhere around the world but hey! There's one sure way to find out I guess.