MPPT Charge Controllers Explained

Thank you for sharing your knowledge with us. this video was very useful for me

Thanks for easy explanation

I have a 90V battery pack. I also have two identical sets of solar panels. Can two 48V MPPT Controllers be connected in SERIES to charge my battery pack?

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A very good explanation on mppt charge controller and pwm, i really learnt from your explanation. big tomb and subscribed bro

Cheers.

How does mppt match the load connected to solar panel internal resistance

I wish I found this video 3 hours ago. Now I get the difference.

Thank you for the information

Precice info thanks

I appreciate the brief and effective overview. Thank you.

Too simple. Still do not know how they regulate.

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1) If my solar panel 250w each connected in series at 136 volts. Is it ok to use am MPPT charger controller specified as 24 volts input?
2) If panels of 136 volts can be used with MPPT charger controller at 24 volts. Then Why there are MPPT charger controller at 24/36/48/60 volts use for? Can you give some typical example please?

Nobody seems to get it. The 18v of a typical 12v panel gets pulled down to the battery voltage by the PWM (basically power averaging) and the *MPPT both. To get the most out of an MPPT (or any benefit at all) you need to go at least double the voltage for the panels. If your MPPT can handle higher voltage, then go to that. An MPPT utilizes the typical 18v in PWM mode. It's unlikely with an 18v panel but if extra voltage exists (like with a 36v house panel being ideal) the MPPT controller has an inverter section inbuilt (transformer and all) which converts the extra voltage into current which also goes into your battery. So in a 12v battery system, instead of say 6 Amps with a PWM on the same 36v panel you might see 10 Amps typical with an MPPT. (real world figures)
So if you only have 18v panels then stick with the PWM, it's cheaper. To get the best use out of an MPPT controller the system needs to be designed using 36v or even 72V inputs (within specs).
*Technically the MPPT tracks and keeps to the voltage of a panel that provides the maximum power output at any given time. That's called tracking and to be precise, Maximum Power Point Tracking or MPPT. Panels in series need to be the same.

Great explanation, Im building my own MPPT Controller right now, am going to have it hooked up to my 60 watt solar panel to charge a jackery explorer 240 faster than without one.

Am I right to say that MPPT is just a buck/boost converter?

Will a charge controller also shut off power and prevent your batteries from draining below 50%?

What is a decent price range for a small 12vdc system?
Thanks for the video!!!

Dont no if your still active on here but what i would like to no is...if i pick out a 40amp mppt where is it calculating that max 40amps at is it on the solar input side? Or is it the max conversion it can do to the 12volt battery output?....hope i explain my question ok....

Hi i want to buy solar controller from loom solar in India, not sure which one to buy?

very well explained for people who have no idea on the subject. Tx for sharing (I have subscribed)

The "MPPT" controller you show at the end isn't MPPT; it's a fraud, as YT teardowns will prove. Having said that, there are completely configurable and dependable MPPT in the $100 range.

The Tracer A series is a good example. Current prices as of this writing are $52 shipped for 10A, $75 shipped for 20A, $85 for 30A. The 40A breaks the $100 line at $125.

LDSreliance setting a price for any electronic device is a fullish advise. Cell phones as an example may cost $700 today but two years later you can get them for $100.
This is always the trend with electronics; a MPPT controller can sell for $1,000 until that technology becomes common practice then you can have it for $10.00
Please don't be a hack for MPPT manufactures !!!

Mppt would be a lot more efficient in winter or cloudy day if run from 2 panels in series charging 12v battery. Pwm could be useless in cloudy day with 2 panels in parallel.

mppt controllers cost much more than PWM controllers...The extra cost makes PWM controllers a better choice for smaller systems

So, I have two CS6-335 panels and 6x 12v batteries I'd like to charge up for some off grid learning. Which mppt cc would you think I should look at? Or a good place or website to start with.. I'm so new to this.

Thumbs up. ENJOY... THE SIMPLE LIFE

Oh man, I need one for my panels.

i really learn alot from your videos keep them coming

wiring inverter to charge controller load ? what are the pros and cons ?

Alright I got some things to get

1.) A 12V deep cycle battery or a 12V lithium battery (or environmentally friendly battery)

2.) A much better charge controller (mine is 100 watts it came with the harbor freight kit)

3.) A much better inverter that can handle higher loads

4.) Much more efficient panels. Perhaps I may make my own panels with mono solar cells? Or I may just buy a mono panel for below $1 per watt. If you want to know how big my 45 watt panels are already, the height is 1 inch, the length is 36.5 inches and the width is 37.5 inches. These panels are made out of amorphous crystal, never heard of it. And it is much heavier than a 100-watt panel.

I think that's it.

Questions:

1.) Why can't you just have 1 battery that powers your house? Why do you need to have multiple batteries in series? And why do you need to wire them in parallel also?

2.) Are there any 12V deep cycle batteries for dirt cheap that you know of? Or perhaps a battery for solar applications? Can I have the link?

3.) Remember when you told me that you would need a special type of glass for the frame of the panel? why can't you or I just use any glass or any frame?

4.) For a 12V deep cycle battery, how much can you charge a battery (max voltage) and how much can you discharge it (minimum voltage)?

If you have full sun you may not need an MPPT controller. In all cases an MPPT controller will work better than a PWM. But, when you have full sun all day and all panels are in the same condition one just does not gain much over a PWM. The extra cost does not justify the expenditure.
An MPPT controller really comes into it's own is when the sun is constantly changing and the clouds play a big part in that. But also each panel should have it's own controller. With full sun and all the panels in the same condition one can use a string inverter and a PWM controller. The cost difference is quite significant. I'd pay a hundred dollars for a Genasun controller before I paid for anything, But hey, sometimes ten bucks will give you the same results. It all depends on weather and shading conditions.

THKS

Great explanation on these controllers yes i fell victim for buy cheap MPPT and was really you cannot get a good one unless you pay over $100 US Thank you

What is a practical 'load' on the MPPT charger load terminals? I'm guessing you don't want to hook up your inverter here, but should hook up the inverter to your battery bank. Is the 'load' terminals of a MPPT charger alway 'on'?

Hello

Yesss I am early :D