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- เผยแพร่เมื่อ 18 พ.ย. 2024
- #BESTEK #DIY #CAMPING
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Found u from the Amazon feedback comment. Thanks
pinned! thank you
These smaller size pure sine wave devices would be perfect for a person living in an apartment who needed some way to keep the fridge running and at least one lamp, preferably an LED one, the LED lights are very low power consuming, A person with a house could use a gasoline generator if they wanted, but the apartment dweller can't.
But if I lived somewhere that gets blizzards and then power outages, I would get something that can power a 1500 watt little space heater and the fridge and at least one lamp. Now we're talking around 2200 to 3000 watt inverters and two batteries linked together to give you at least 200AH of power. I would get a "Giandel", or a "Renogy" brand and a good Lithium deep cycle battery not a car starting battery. A 1000 watt for a computer or fridge and a lamp or two. A 2000W or better to give plus to add a little heater. But you are so right: you really do get what you pay for!
Cool story bra
After seeing this video, I decided to check my Bestek 500 watt PSW inverter. My oscilloscope shows a nice clean pure sine wave at idle and remains very clean all the way up to ~250 watts (which is the maximum I tried). It's even better than the power coming out of my wall. I can't explain why so many people are seeing modified waves and dirty power from their Bestek 500 PSW unless:
1) Bestek has a major quality control issue allowing a large number of faulty boxes to ship
2) these inverters are being built for Bestek by various manufacturers - (some being true PSW versions and others not)
3) Bestek has corrected a manufacturing problem (mine was purchased less than a year ago)
The bottom line appears to be that it's a hit or miss thing with these inverters. If you buy one, I'd test it well before the return period runs out. If you get a good one (like mine), great, otherwise send it back.
Look at the age of the video.. it took them 3 years to fix it. You have a newer version, obviously.
Something is wrong here. I just got the same inverter and so I wanted to test it while I could still return it. With a measured 455 watt load I was still getting a nice sine wave at 122VRMS and 60.07 Hz. Sure looks like a pure sine wave inverter to me.
My video is old, they finally fixed it. Thanks for the update
When you say they fixed it does that mean you bought a newer one and tested it?
@@soundpixel9867 Well I didn't say they fixed it, I said I bought two and I get a sinewave out of them with 2% distortion and 455 watt load. If you look on Amazon you can see the pictures in my review. I would post them here if I could but I can't.
@@JoeteckThen update your description.
@GSPirosaki why? This is an old video, then it would be wrong
A huge thank YOU!
I was about to order this as it's still available via Amazon.
But I was suspicious about it's claim of "pure sinewave."
You confirmed my suspicions that it's JUNK!
I had wanted a physically small one to just keep in the car, mostly for charging phones, tablet and maybe run a small TV now and then.
We do have 2 big inverters, one which is about 3X bigger than that. That particular one is only 1,000 watts, but its sine wave is solid. Even at big loads.
I can't leave that in the car because it's just too big and expensive. I wouldn't want it to get stolen.
So thanks for saving me $$$$ as I'll clearly NOT buy that crap. LOL
Thanks and cheers..
Attention viewers - this is a very old video based on an old original inverter, and not the newer more current up-to-date actual pure sinewave models being sold today.
You thumbs up your own comment?? That's hilarious
There is no proof of this, I wouldn't go and buy it until I test it. Most likely he works for them and making a biased comment. Be careful.
Before even watching this video I want to point out that 90% of the inverters listed on Ebay and probably most online sites lie about the "Sine wave" details. They say Pure sine wave in the title but if you look in the details it almost always says modified. I have contacted many of them but it is still happening. I guess China can get away with anything.
Appreciate this video so much. We've just come out of a power cut in the UK, the second this month so I'm looking at buying a budget Inverter to run our heading boiler and sober device chargers. I bought a modified sine wave 800W which worked to an extent but the boiler controls needed reset ever so often. I'm pretty sure this was due to the modified sine wave rather than the total current capacity..
When they advertise 500W is that 500W peak, 500W peak to peak, 500W average, or 500W RMS??
Interesting question. Most inverters do say "X watts continuous, X+ watts peak" but I don't see that in the manual anywhere for this inverter, it just says 500 watts. It does say that it starts to limit at 600 watts AC output and the DC is fused at 80 amps. I was also able to get 450 watts out of mine and it didn't shut down or limit so I think it's probably 500 watts continuous and something between 600 and blowing the fuses peak. If someone tests that do make a comment with your results.
Thanks a lot for all the testing.
Ive been wondering if this 500 watt inverter had one of it"s two fuses burned out or defective. My 300 watt should be almost identical and it's symmetrical and clean.
Interesting test, great to see a scope in use :), but pity you didn't tell us how many watts you were pulling from the inverter during the test.
Same question
Applying a non-linear load to a high impedance supply (inverter) will result in a non-sinusoidal voltage profile at the supply. A utility source has an extremely low impedance, so it is able to supply the high current demand of non-linear load, thus keeping the voltage profile sinusoidal. Not saying this inverter is great, but a linear load, an incandescent lamp, would have been better to determine the inverters' supply capability.
Great video! More people need to see it b/c so many think this is a pure sine wave inverter.
I'm thinking the same happens at a wall outlet. Why you'd have power protection there regardless whether there's one for the whole building.
They fixed it
Your CPU AMD 1950X 16C 32T can reach 180W without the other components
you are using all of the inverter's power, use half the power of any inverter to ensure that the electricity will remain pure, with the exception of some expensive brands
Can't forget the GPU, RAM, fans..
Wow, good thing you tested it! Good find
Would this be able to power up a ps4 and monitor if only plugged into to the cigarette lighter while the car is turned on?
No, you need a direct connection to the battery. The PSU on the PS4 requires 250 watts. a cigarette lighter plug only provides 120 watts max. You'll blow the fuse or cause a fire in your car.
Would love to see an update to see if the newer are truly fixed. Thx.
It's fixed. He's not the only person that tested it
@@mann_idonotreadreplies Oh? ok... interesting.
I was about to add this unit to my Amazon cart, but after seeing this, I decided not to.
I'll hunt for a newer video on THIS model.
There's new vids on the non "pure" sine model, but I'm not interested in those.
I need PURE, STABLE sinewave. No load or load.
Have u tried using thicker cables & hard wiring it ?
Not doing to change the terrible output quality
Can this unit be used to power a Bluetti eb240 solar power station ?
can i used this for PA 500 watt speaker or just playing around with karaoke at the beach ?
Hey man great video. You ever follow up and maybe test another inverter? See if it was just that specific one 🤷🏻♂️
Sorry, not going to waste my time on a terrible made product that promises fake results.
@@Joeteck do u know of any 500w inverters that do offer a stable pure sine wave atleast? And have u tested said product
I am buying one only to charge my electric toothbrushes (his and hers), shaver, waterpik flosser and such items while on vacation - off the grid {no big loads}
You may blow up those sensitive devices..
Did you test the max voltage you can run this and the minimum. I have a 4s20p battery, I'd like to use with this. Manual online, just says 15-16 volts max and 11-12 volts minimum. Thanks for reviewing 😀
No, it's a 12v inverter. Doing so would damage the device and most likely the equipment attached. And if I did it without a load it wouldn't be a good test. Besides any car battery going lower than 10v would be unrecoverable and will need to be replaced
@@Joeteck right, but alot of DIYers like myself, use lithium Ion, or Life batteries when building solar generators. Most companies do the same. Unfortunately you can't really use 12v or 3s. But you should based on the specs. Use 4s. Just curious if maybe you tested the cutoff and over voltage of the 500 watt inverter. The manual is a little vague when it comes to the voltages. I do know, the 4s will use the most. I can only charge them to 3.75-3.85. If 15 volts is the max. But if it's 16 volts, I can charge to 4v. As for the low end of the voltage, even at 10v-11v. The batteries would only discharge to around 2.5-2.75, which is fine also. My battery is around 52 amp hours. But I'll loose a little charging to 3.85-4. But at that voltage, the batteries should be safer. Thanks for getting back to me, I just seen this inverter on Amazon and I was curious if you might have done this type of testing.
@njf buy renogy inverter. They have a discount now
-- So use it on small stuff. just want to charge a stuff not run it. But I am curious, what it would do with a vehicle alternator behind it. Thumbs up.
Doesn't a quality PSU clean the power? Wouldn't a quality surge suppressor? Would the PC be safe with those plugged into this?
No, not at all.
@@Joeteck Thanks.
It’s not the inverter it’s the battery. That looks like a car battery not a deep cycle battery. A car battery is made to give off a lot of power for short periods that’s why they tell you the cold crank amps. It’s the battery that can’t keep up with the inverter. As to a deep cycle battery that is meant to be under load for long periods and drain down. Draining a car battery will severely decrease its life span
Incorrect, but nice try.
Dam I thought I had it haha. Good to know . I’m gonna research more into it to understand it better
@@Kryptkeeper911 these inverters are specifically for 12v batteries. No idea where you go your original research from.
I am looking into getting a inverter to run my pellet stove when the power goes out. Since the stove runs off a control board should I be using a pure sine inverter to power it?
@@Kryptkeeper911 what is the current rating of the stove?
i think what it means that this is a 500 watt peak you should only used half of wattage avaivable in order to be stable
Then buy a good 250w inverter
If I plug this into the lighter socket of my F150and then plug a 300 watt coffee pot to it will it F up my alternator?
At idle, your alternator should be able to put out around 600 watts before it starts draining the battery. Coffee pots usually use more power than 300 watts, though, because of the almost instantaneous hot water need. You'd probably want to get a 1500 watt inverter for a coffee maker.
I'd also use the alligator clips hooked straight to the battery because you'll probably blow the cigarette lighter fuse or melt the thin wire.
No. It will blow the fuse for the lighter socket.
Most car cigerette sockets are rated to 10 amp (120 watt).
Your music makes me more eager to play GTA6.
my question is can i run a laptop for 6 hours or so constantly? a gaming laptop that pulls roughly 200 watts
Yes, as long as you have a few batteries in parallel to maintain the current requirements. Let say it's a 17A draw, we multiple that by 6 (6 hour requirement) and we get 102Ah battery required. Just so you know, to convert watts into AMP or Visa versa, voltage X amps give you watts, or watts divided by volts gives you AMPS. 200/12 = 16.67.
I rounded it up to 17Amps. Hope this helps.
Plus you're gonna want to charge it to while playing, so you'll need something pretty strong to charge it quickly. You'll need a charger at least 20A, so if you use it while charging it will still give you 3.5AMPs of charging while using the computer. Personally 200W is a bit low for a gaming laptop. I would be very surprised if it was.. good luck.
I have one of these powering my 60 inch tv in my RV. I was about to order another one to run crockpot but now I won't buy another one. Welp back to searching for a usable pure sinewave 500 watt inverter.
Chexk this one out, much better!!
th-cam.com/video/ByETCb2gbf4/w-d-xo.html
So, have you found a great inverter? Thanks
Yes, this 1000w inverter!! th-cam.com/video/ByETCb2gbf4/w-d-xo.html
@@Joeteck Thanks for your quick response Joe!
Thank you for your review!
Oddity. My 300 watt Bestec sine wave makes a beautiful sine wave. Small is good for trains, a VCR, or a smaller fan.
I'm looking one inverter for my layout, did you try with IR controllers?
@@christianr2554 I just bought the jewel and never looked back. Beware as Bestek also makes really junky square wave inverters. Mine isn`t the plastic one. It`s a bright anodized red case with aluminum ends model MRZ3011BU. I unplugged the fan and glued leather feet on the bottom ends. I never take it over 100 watts. It`s rare on Amazon.
Very unscientific test... no battery voltage measurements, no AC voltage output measurement. I'm not even sure if you have the scope on the correct settings.
Well, go ahead and buy it, I dare you.. I wouldn't go near it. I purchased a 1000w that had a much cleaner output.
This is such a great video. Thank you.
I noticed no sparking on battery hookup, I usually do
Really helpful, thx! Any better recommendations in the 300w range?
I have 300w type. Is Nice. Runs at same time: Tv 47" ; Fan 50w ; Alexa Echo dot ; charges Mobile and four duracell batteries (2500mah each one). And run all night: Charging 4 duracell batteries (2500mah each one); two energizer batteries (1400mah each one); powerbank duracell 1000mah; power bank genéric 5000mah.
The cooler or fan of the inverter runs constantly but very silent. I'm sorprise with bestek 300w
You short circuit it when you hooked it up to the battery and you tec
What? You need to learn how things power on buddy
Good day. Can this 500w inverter power a 110w fridge or deep freezer?
Need to find out the AMPs. take the voltage multiply it by the AMPS (or current) and you will get watts. Here is an example; 5A x 110v = 550 Watts. 5A x 120v = 600 Watts. Hope this helped
@@Joeteck will check.here in Africa we use 230v.
Average big fridges need maybe 3000 watts of pure sine wave. I have a Lvyuan 1000 pure sine for my 5 cubic foot White chest freezer. It`s always waaay bigger than the continuous watts and don`t look at anything square wave.
You should have used incandescent light bulbs to test the load.
You should have also used larger gauge wires than the ones they provided. They always cheap out on the wires.
I'm not sure you are using the scope correctly either... Averaging?
What are those 12GA?! That's 41 amps, 500W 12V. Bare minimum 10GA, even at the short distance as shown in the video. I wouldn't do anything smaller than 4GA personally regardless. 40A sustained with 80A spikes.
I just bought this waiting on delivery...had high hopes....back it goes.
I did the same thing, I canceled the order. That's terrible.
Wouldn't the test be more accurate with a battery charger on the battery while drawing the load on the inverter? To simulate a running engine/alternator? You don't think the voltage dipping below 12v would mess with it? That is a cheap lead acid WalMart battery...
Actually, no. A battery charger doesn't put out the same (AMPS) current as an alternator. Most inverter use is done after charge.
@@Joeteck well not a small charger. But for a 500watt inverter like this one that's designed to be used in a car. It's recommended you have the car running. A lead acid battery isn't meant to be discharged like that. A 40amp battery charger would have kept you above 12v and probably cleaned up your signal. That and better connections to the terminal.
@@Carlos-jh5tb actually its not designed to be used in a car. You are wrong. Connected to a battery directly. Nothing inside can sustain 500w. The 12v port can only do 120w.
@@Joeteck you hardwire it to a car battery in your car lol you get 4 guage wire and make a direct connection. It's advertised for car use.
@@Carlos-jh5tb Its not, and I wouldnt. don't be stupid!
Thanks for your input and testing man, that is not cool that this ain't a pure sine wave inverter, have an awesome day too.
what about electric corded weed eater?
Bestek and Lvyuan are the only smaller pure sine wave inverters that I would buy on Amazon. I bought one of each. Both shine. Could this 500 watt that has made all the rukus go up on a lift for a checkup? Very educated meticulous people build these products and quality needs to populate the buyer's whims.
But is it safe to use sensitive equipment on it ?
No, I wouldn't go near it. I reviewed a 1000w inverter that is a pure sinewave.
What pure sign wave of 500+ would YOU recommend
I actually recommend this one: th-cam.com/video/ByETCb2gbf4/w-d-xo.html
I did see that one. Would you be comfortable running say a small mini fridge, Xbox and 20inch led tv in a semi without issues?
Do you know if their 1000W pure sine model does any better?
I reviewed another 1000w a few days later. Look for it.. pure sine wave
Buy renogy inverter. They have a discount now. Renogy (if you're serious Long term)
Great video for research for a newbie thanks!
Does your PC power supply has Active PFC?
Who you asking? Me or everyone? Yes, I have APFC.. very bad for stepped output.
its a garbage output inverter. didnt know they sold these but thats what it is. Also the pc i assume is using a switching power supply which converts the ac into dc then regulates it to the various voltages so the pc should not care how bad the output is. I used square wave inverter for pc's back in the day ands the pc didnt even know because of the power supply.
Buy the 1000w version.
Thank you for the video. You made the review I was looking for! I was considering buying this to power a laptop on my boat. I think I will look for something better!
Pay attention as I slipped in a review of a similar 300 watt and can`t be happier. Bad? Maybe. Or the gent may have bought a one-off defect. One bad soldering joint?
How many watts? Cos i also have a 1.7kva inverter that pick my 110 watts freezer without stress,, that inverter should be 1400 watts maximum i think
Very good job
What are those 12GA?! That's 41 amps, 500W 12V. Bare minimum 10GA, even at the short distance as shown in the video. I wouldn't do anything smaller than 4GA personally regardless. 40A sustained with 80A spikes.
Using the cables that came with it based on the manufacture. You're a BIT OFF and wrong. theinverterstore.com/wp-content/uploads/2021/10/what-size-of-cable-should-i-use-with-my-inverter-and-battery-2.jpg
It can never burst at 80A, ever.
This is the only review of this inverter on an oscilloscope I've seen that looks bad. Every other instance of this inverter on an oscilloscope I've seen, it looks good under a load.
Look at when those videos were done. They possibly fixed it
You probably shouldn’t be powering the scope off of the inverter while testing the output of the inverter.
good explain
Mine is giving true sine way pass 500w...
Nice video
Why not any single video actually how's how to charge it? How do you charge the inverter?
You don't charge inverters lol
No issues with it so far….
It will damage your electronics
I suspect something is wrong with your inverter.
Something wrong with that brand.. i am not the only one
Holy crap 🤣🤣🤣🤣🤣🤣🤣🤣
Thanks for the review very good top marks, you just saved my pocket, it's just more China junk, so I will not be buying anything from Bestek they should change their name to Worstek, I wanted to run two laptops, one TV and charge one phone, so 500 watts should do that if it is Pure Sine wave, but not this one, Any suggestions for a good one Cheers Bob in the UK
I have this inverter and it makes a near perfect sign wave with a 450W restive load. You say "they fixed it" So please take down the video and replace it with a valid one.
No.. there may still be crap out there
I got an advertised pure sine wave inverter that's worse than this one. Too late for a return...
That sucks
Power inverters are a scam for any high loads.
Cool story bra
Try a vacuum
No, you apparently have no idea how much a vacuum draws, it will fail.
Vacuum needs 1500W pure sine or above