FAKE !!!! Fact or just new technology (1 Viewer)

[Geo]

You experts out there tell me
These real cheapo e-bay MPPT controlers such as the video is demonstrating
do they really need big coils inside to be a MPPT controller????
The price says its a fake at about £20 what say you

Geo

 

[two]

The script doesn't tell me anything. You don't measure IP and OP in current alone. I don't think this guy knows what he's talking about, although he's clearly upset. If it's cheap, it may be poor quality. The video does not succeed in demonstrating that.

 

[Gromett]

The script doesn't tell me anything. You don't measure IP and OP in current alone. I don't think this guy knows what he's talking about, although he's clearly upset. If it's cheap, it may be poor quality. The video does not succeed in demonstrating that.

I disagree. He has proven that it is a fake.

A PWM charge controller simply switches the output on an off so the average voltage is what is required. The current will be the same.

An MPPT charger will lower the voltage and increase the current to the maximum power point. At worst you should get the same current out as going in.

I bought a 'fake' MPPT charge controller and they really are crap. Once I have new fridge and have rebuilt my kitchen area I will be upgrading to a quality branded one.

When I do this I will pull the old 'fake' one to pieces...

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[two]

I'm not sure how it's been proved because there is insufficient information. What if the battery is fully charged, for example?
Under 'normal' conditions I'd agree that more current should be available at the output (probably about 8A) and not less.

 

[Geo]

Better example??

 

[Lenny HB]

Obviously he hasn't stated any parameters to get a meaningful comparison you need to know then input & output voltages and the state of charge of the battery. The panel will be producing something like 16-20volts and the output of the controller should be around 14.5 v so if it is working efficiently the output current should be quite a bit higher than the input. As @Gromett says it is fake, if he had done the test properly you would have seen a much more convincing result.
Even the Chinese can't make something for nothing even with their cheap production costs you still get what you pay for.

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[Gromett]

Obviously he hasn't stated any parameters to get a meaningful comparison you need to know then input & output voltages and the state of charge of the battery.

He has a PWM directly above it, and from what he said he tested the two side by side. His current measurements he did on screen were just a brief demonstration.

Better example??

Yup, it was Julians video that made me check mine out. His channel is well worth following if you are into techy stuff. I checked mine out and it has a coil of wire soldered to the board which won't have much inductance at all. The coil has no core and is only a few turns of wire.

I do like his Muppet (MPPT) project and will be doing my own version at some point in the future.

 

[two]

There's little doubt they are not what the purchasers expected them to be, but I wonder if they work as well as any other controller at that price?

 

[Gromett]

There's little doubt they are not what the purchasers expected them to be, but I wonder if they work as well as any other controller at that price?

I can't see it being any better than a sub £10 jobby. PWM controllers are well understood and very basic technology.
I would hazard a guess that either of these would be just as good.

OR

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[Geo]

Why do I ask
whilst researching the asking price for some panels cables batteries etc from a brand new failed project caused me to search all the relevant pieces to gauge a bargain or not
I came across these controllers and the U tube vids at the same time
I saw these controllers for sale under many different logo's from £29 to----- wait for it £129.
now that would be a serious con if you believed it to be what it says on the tin
needles to say it was used as a bargaining chip and reason to test and verify everything else he had going

 

[two]

Could the £129 one be genuine, perhaps, and the others are trying to immitate it?
Second video was much better, BTW. Shame that rain stopped play, though.

 

[musson]

Buy a victron

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[BwB]

I looked at these a couple of years ago, the model number was MPPT30. And, that was the clue. It's model name was MPPT30. They were careful (at that time) not to state it operated as an MPPT controller.

Marketing.

 

[chaser]

Don't understand much of this thread, but I have two sps on the roof and one of these controllers and have more leccy in the battery's than I know what to do with, never on hookup .

 

[two]

I should check it's not faulty!

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[two]

I looked at these a couple of years ago, the model number was MPPT30. And, that was the clue. It's model name was MPPT30. They were careful (at that time) not to state it operated as an MPPT controller.

Marketing.

That's an interesting way to spell "Deception".

 

[Gromett]

This is my controller. at least these guys made some attempt to fake the MPPT...



I wish I still had my 45Amp Morningstar. That was a beast and excellent.

 

[Techno]

I don't trust anything including victron that is sealed or potted.
Yes Mppt regulators must have toroidal transformers

These are proven over 5 yrs by very many forum members

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[Gromett]

Yes Mppt regulators must have toroidal transformers

Technically speaking they are not transformers they are just inductors used by the dc-dc converter.

 

[Techno]

This guy knows

 

[Techno]

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[Techno]

 

[olley]

I wish I still had my 45Amp Morningstar. That was a beast and excellent.

You sold it to me, and I agree its excellent.

 

[Gromett]

You sold it to me, and I agree its excellent.

I don't remember selling it to be honest, But have a vague recollection of 2 solar panels going. was that you also?

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[olley]

It was Grom, still on the roof, now joined by another 120watt. You were living at home, came of a big euro you owned, offered me two or three big batteries as well but I didn't need them. Must have been around 2006?

 

[Gromett]

It was Grom, still on the roof, now joined by another 120watt. You were living at home, came of a big euro you owned, offered me two or three big batteries as well but I didn't need them. Must have been around 2006?

If it was the Eura then it would have been 2008. I started to empty that out in 2008 ready to go fulltiming in a different vehicle..

I do remember you now but from the Dark Side