Thank you very much, I have 2 such MPPT chargers, one auto starts when there's sun, not the other, I couldn't find how to change that in the manual. So many thanks for the video !
Finalmente! Dalle istruzioni del manuale allegato in inglese non si capiva un beeeeeeeep! Ora è stato davvero immediato e semplice. Video da tenere bene in... Evidenza. ;-))
Hi Mike im trying out things to stop the mpt7210 from crashing and have found that putting a 100v 4700uf dc cap inline with the solar panel before going into the charger really slows the voltage drop when clouding accrues and stops it from crashing
This is so helpful, going homeless for a bit to catch up on bills and setbacks. Been testing my allpower 300watt and 60watt. The mppt resetting is really pissing me off. I really want to get away with the smaller lighter 60watt. But the power resets are killing that from happening.
This video helped me s much! One question, on the Amp hours, do I set that to the amp hours of my battery? So I have a 110aph battery, do I set it to 110? Thanks again.
Hi Mike. If you're interested, I've CAD'd up a clip on 3D printed muffler for the MPT-7210A which quietens down the fan noise quite substantially. Happy to send you the STL file if you'd like to try it. Cheers.
I am wondering, instead of having these convoluted keypresses to reach certain menu items, why didn't they just make it so it cycles thru ALL of the menu options in a round robin fashion, and then you just exit out when you are finished setting/changing what you want?
Or why didnt they make it "battery dependant" like every other controller on the market, that way it will never lose power, and therefore, this issue wouldn't exist in the first place
Question...can this controller on the DC-DC mode do a step down...say to charge a 36 volts battery bank from my 48 volts bank that are connected to the solar panel?? the 36 volts is just a 44 AH system. It might be...that the controller in MPT mode connected directly to the 48 volts battery bank...can be used to charge de 36 volts bank...if I can adjust the current to no more than 6 Amps....Mikes..what do you think?? Thanks
I have 2 solars on the roof of my motorhome Kyocera 2x120W KC 120-1 Details Maximum Power 120 W Maximum Power Voltage 16.9 V Maximum Power Current 7.1 A Open Circuit Voltage 21.5 V Short Circuit Current 7.45 A and the MPPT controller that loads two batteries from these two panels in series to give a 12V output. Can I use this controller to recharge these batteries. What voltage should I set for charging?
68V solar input is out of spec. The acceptable range is 12-60V according to the user manual. Have you had any problems with your unit with overvolted input? I have some panels that are 64.2V open circuited and 54.7V at MPP so I am wondering if those would be ok to use long term. Also, I want to use 2 identical panels each with an Impp of 5.58A, so is it ok to use more than 10A of input provided that only happens rarely when the sun is at the perfect angle to the panels? The maximum input of this device should be somewhere around 600W so I am wondering if anyone has seen anything close to 500W output reported on the screen.
Hello Mike , Need Small Help . I Have 37v Li-Ion battery ( 10x 3.7v 18650 Li-ion connected in series) Max charge 42 V . 1) Can I charge this battery with 12v / 40 W panel ? 2) Can I charge this with Series - 12v(40w)+12v(40w)= 24v ? 3) Can I charge this with Series - 12v(40w)+12v(40w)+12v(40w)= 36v ? Thanks
hmmmm a single 300w panel i would say, mainly because the input voltage would need to be lower then 45v and the unit can handle around 10amps. For 48 voltages you are better off with a buck converter mppt charge controller
hopefully you get this message, i have a problem with my 7210a. I have 2 36v 300w panels in parallel, but i the highest current im getting is like 3amps=30ish watts. thats like 5% of what the panels should be putting out. Any ideas?
Mikes DIY Tesla Powerwall I also did a test using a 12 volt battery in the case that the solar panels were the problem and it appeared that the behavior was the same
I think the battery voltage is too low. The 7210 is a boost charge which means the battery voltages needs to be alot higher than the solar voltage. If your solar panels are 36v ish then your battery will need to be 40v -50v min. Add another 12v agm in series so you have 4x12v that should fix your problem.
Mikes DIY Tesla Powerwall I thought the same thing from watching your videos. So I did a test using a 12 volt battery as a imaginary solar panel. It did the same thing trying to charge the 36 volt setup
i dont have a problem with auto on, but i do have a problem with it remembering settings, daily i have to reload from 00, or it thinks my batteries are about 1v :/ i suspect it is lack of light hitting the panels as they are in a bad spot, only get sun for 10 months a year :/
ohhh i knows mate, these 2 month a year kill me, but im watching the sun getting closer and closer by the day, another week and my 10 month of solar will commence :)
Грею им воду , боллер на 80 литров, сдох аккум, решил что бы хоть куда то сливать , подключил данный контроллер напрямую , выставил 85 вольт на выход, у панелей рабочая точка 48 вольт, по идее было бы лучше подключить две 24 вольтовые панели, но там холостое до 72 вольт, очковато, по этому включил 24 и 12 вольтовую панель
Huge thumbs up for this. Chinglish instructions didn't help one bit, but this nailed it in minutes.
No problems :)
Thank you very much for making this. I have been scratching my head trying to find that function!
Thank you very much, I have 2 such MPPT chargers, one auto starts when there's sun, not the other, I couldn't find how to change that in the manual. So many thanks for the video !
Finalmente! Dalle istruzioni del manuale allegato in inglese non si capiva un beeeeeeeep!
Ora è stato davvero immediato e semplice. Video da tenere bene in... Evidenza. ;-))
Hi Mike im trying out things to stop the mpt7210 from crashing and have found that putting a 100v 4700uf dc cap inline with the solar panel before going into the charger really slows the voltage drop when clouding accrues and stops it from crashing
This is so helpful, going homeless for a bit to catch up on bills and setbacks.
Been testing my allpower 300watt and 60watt. The mppt resetting is really pissing me off.
I really want to get away with the smaller lighter 60watt.
But the power resets are killing that from happening.
Thanks Mike. Great to know this default can be changed.
Thank You for this video. I had seen it done on Julian Letts video, but had forgotten which one. I think I can remember it this time.
Oh man this video final made my damn charge controller useful! Thank you
This video helped me s much!
One question, on the Amp hours, do I set that to the amp hours of my battery?
So I have a 110aph battery, do I set it to 110?
Thanks again.
I never would gotten that from the piss-poor instructions included. A huge THANK YOU!
is that semi mppt controller good? I see it only different from PWM that it has a boost circuit for manual voltage regulation
OK so this just saved me getting very frustrated !!! Thanks
best man, it is really simple to do but the original description is horrible :-) Thank you! now my controller starts automatically
Do you know what is max work amperage? :) And if it has any fuse inside ?
Hi Mike. If you're interested, I've CAD'd up a clip on 3D printed muffler for the MPT-7210A which quietens down the fan noise quite substantially. Happy to send you the STL file if you'd like to try it. Cheers.
Hey Mark, Sounds like a good idea. I dont have a 3d printer tho but i would be keen to see a photo
I am wondering, instead of having these convoluted keypresses to reach certain menu items, why didn't they just make it so it cycles thru ALL of the menu options in a round robin fashion, and then you just exit out when you are finished setting/changing what you want?
Good question
Or why didnt they make it "battery dependant" like every other controller on the market, that way it will never lose power, and therefore, this issue wouldn't exist in the first place
Thanks. I was about to feed it with constant power instead.
Thnk..this video make me easy used my mppt 7210A used setting funtion..ty
Question...can this controller on the DC-DC mode do a step down...say to charge a 36 volts battery bank from my 48 volts bank that are connected to the solar panel?? the 36 volts is just a 44 AH system. It might be...that the controller in MPT mode connected directly to the 48 volts battery bank...can be used to charge de 36 volts bank...if I can adjust the current to no more than 6 Amps....Mikes..what do you think?? Thanks
no its only a boost converter so the input has to be lower then the output.
thx!!! so helpful!!!
Hello sir.
What input voltage of panels can you support?
Greetings.
Do you know if there is a way for it to auto start on a data set that is not 00?
Danke für das Video und den Tipp.
I have 2 solars on the roof of my motorhome
Kyocera 2x120W
KC 120-1
Details Maximum Power 120 W
Maximum Power Voltage 16.9 V
Maximum Power Current 7.1 A
Open Circuit Voltage 21.5 V
Short Circuit Current 7.45 A
and the MPPT controller that loads two batteries from these two panels in series to give a 12V output. Can I use this controller to recharge these batteries. What voltage should I set for charging?
Thank you so much! The manual was little help
68V solar input is out of spec. The acceptable range is 12-60V according to the user manual. Have you had any problems with your unit with overvolted input? I have some panels that are 64.2V open circuited and 54.7V at MPP so I am wondering if those would be ok to use long term. Also, I want to use 2 identical panels each with an Impp of 5.58A, so is it ok to use more than 10A of input provided that only happens rarely when the sun is at the perfect angle to the panels? The maximum input of this device should be somewhere around 600W so I am wondering if anyone has seen anything close to 500W output reported on the screen.
yes it is out of spec but by changing the caps it seams to work fine. I wouldnt push it much higher tho
What value and type of caps did you use?
i feel like i inspired this video .. thumbs up
Hello Mike ,
Need Small Help .
I Have 37v Li-Ion battery ( 10x 3.7v 18650 Li-ion connected in series)
Max charge 42 V .
1) Can I charge this battery with 12v / 40 W panel ?
2) Can I charge this with Series - 12v(40w)+12v(40w)= 24v ?
3) Can I charge this with Series - 12v(40w)+12v(40w)+12v(40w)= 36v ?
Thanks
Advise how to update the software?
Thanks that was hurting my brain
what is your feedback on that charger? what is the maximum pv you can put for 48v?
hmmmm a single 300w panel i would say, mainly because the input voltage would need to be lower then 45v and the unit can handle around 10amps. For 48 voltages you are better off with a buck converter mppt charge controller
Mikes DIY Tesla Powerwall where i can find what you tell?
hopefully you get this message, i have a problem with my 7210a. I have 2 36v 300w panels in parallel, but i the highest current im getting is like 3amps=30ish watts. thats like 5% of what the panels should be putting out. Any ideas?
What is your battery voltage? Also what batteries are you using?
Mikes DIY Tesla Powerwall 3x12v agm 55ah in series
Mikes DIY Tesla Powerwall I also did a test using a 12 volt battery in the case that the solar panels were the problem and it appeared that the behavior was the same
I think the battery voltage is too low. The 7210 is a boost charge which means the battery voltages needs to be alot higher than the solar voltage. If your solar panels are 36v ish then your battery will need to be 40v -50v min. Add another 12v agm in series so you have 4x12v that should fix your problem.
Mikes DIY Tesla Powerwall I thought the same thing from watching your videos. So I did a test using a 12 volt battery as a imaginary solar panel. It did the same thing trying to charge the 36 volt setup
Please guide me to purchase a"Ming He" Suppliers MPT- 7210A (MPPT solar charge controller)
eBay
Can I use this on little painnel like 10 watts 12 volts?
you could but as long as the battery is 24v. Otherwise use the EPever Tracer
Thanks a million dude
no probs
Dc input 12 to 60 volt!why 68volt on your device?
i dont have a problem with auto on, but i do have a problem with it remembering settings, daily i have to reload from 00, or it thinks my batteries are about 1v :/ i suspect it is lack of light hitting the panels as they are in a bad spot, only get sun for 10 months a year :/
panels in a bad spot sounds like the first thing to more. Kinda pointless having panels if they never get good light
ohhh i knows mate, these 2 month a year kill me, but im watching the sun getting closer and closer by the day, another week and my 10 month of solar will commence :)
super en comprend mieux c'avec la notice !!
I thought it was up to 60v input voltage..
thank for the video that thane i gave up on it i try that
If only the chinglish instruction manual said that
Грею им воду , боллер на 80 литров, сдох аккум, решил что бы хоть куда то сливать , подключил данный контроллер напрямую , выставил 85 вольт на выход, у панелей рабочая точка 48 вольт, по идее было бы лучше подключить две 24 вольтовые панели, но там холостое до 72 вольт, очковато, по этому включил 24 и 12 вольтовую панель
I also need to buy on COD basis for purchase "Mike's Sly powerwall Update 50-MPT-7210 A Auto on setting"