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Yes mate. So far been running constant for over two years no issues.

Thanks mate - glad you enjoyed. You're pretty much on it. Even If you have a 12V system and get a higher voltage panel (like 38V) you should use an MPPT. A pwm is best suited to a 12V panel charging a. 12V battery.

Hi Walter - thanks mate. I should probably mention solar irradiance strength here in Aus vs other parts however the strength of the light should not affect the voltage as much as the amps. Your panel must have a low Vmp to start with. I would still use a regulator if I was you but it if its working for you then happy days.

Cheers

I can do it if you like.

Thanks mate!

Hey mate. Yes but I'm using a standard Victron DCDC 12 to 24V charger from the altenator. It pushes the power upto 24V. I feed this into the MPPT so it thinks its getting a solar panel at 24V. The MPPT then charges the battery. The only reason I did this was because i couldn't find a DCDC charger with a cumstom charge profile that could go up to 16.2V for my battery pack.

Hi Mate - can you describe what is happening again? First in the morning when both panels are connected in series it is only showing 33-36 V on the MPPT? but if you disconnect the panels from being in series via the MC4 connectors and then reconnect it shows 75V on the MPPT? I will need to have a multimeter to do some testing. First thing you need to do in the morning is test the voltage going into the MPPT. Use the multimeter on the MPPT solar terminals and read the voltage, this is to check what the MPPT is showing is correct. Next, disconnect the panels from the MPPT (you can leave pos or neg still in the mppt, just measure one terminal and the other free cable). Do not disconnect the panels from series at this stage just check the voltage of the panels. It should say 75V. I can not understand at all how it would not.

Do this test and let me know the results.

@@sunbiasolaroffgridsolution6545 thanks. I will test volts in mppt terminal there might be error in display and mobile app. From last two days both panels connected in parallel and working normally. After 3,4 days I will connect them again in series. but this was strange that in series connection mppt pick one panel. Last year I faced the issue of 0.3A with 33-36v at 11,12,1 afternoon time. Mppt used to stand by panels and starts battery power in hot sunny weather. After few days of troubleshooting issue resolved. I though battery sensor sending overheating message of battery and mppt standby the panel. But epever told me that you have oversized your mppt it’s 12/520watt max at single battery and my panels 340+380watt they told me to never cross the 520 otherwise it will damage the mppt. But solar panels never produce 100% I am getting 70-75% power. Mppt never crossed 40A. Reached to 39.5 amp and 574watt once after rain. Usually never crossed 520. If issue remained I will sell 380watt solar to buy another 340 to match both.

@@DigitalMind.254 - Ok let me know how you go with testing the panels. 1st step - try to confirm it is an error with the controller not the panels. It makes no sense that the panels could change their output voltage unless there was a loose connection but that still doesn't add up to me.

@@sunbiasolaroffgridsolution6545 ok brother I will wait 2 days more for parallel connection. Will connect them again in series to see what they response

Hi Mate - what power station is it? Can you send me brand and model. My thoughts are you probably need to put it through a DCDC 48 to 12V (min 10A) converter. Usually they have an input Voltage range of 30-60V. You only need 10A. I'm assuming the power station has an inbuilt MPPT. You set the output voltage to 15V or whatever the minimum is on the power station and it will pull whatever power it needs from the converter which takes from the panel. I can't be completely sure though if the converter will like the fluctuation power from the panel. I could do a test run for you.

​@@sunbiasolaroffgridsolution6545i live in south africa. the brand is EcoNode. no, it doesn't have a built-in mppt. i searched on google for answers on how to reduce the high voltage from the solar panel. mppt was suggested and i came across your video. should i find a professional near me to help? because im on a tight budget, i can't afford to sell my current solar panel and buy another one that's lower in voltage.

Hey mate - sorry I don't think so. Do you know what test I was talking about specifically?

That is very strange. It shouldn't happen as long as you still have the batteries connected.. You should speak to supplier about a replacement.

yes

Mppt for higher voltage.

@@sunbiasolaroffgridsolution6545 I just changed higher voltage’s series connection of panels to parallel connection on pwm charge controller. Thanks again

Depends what type of lead acid battery you have. The EPEVER's have 3 different lead acid charging profiles. Sealed, Gel, flooded. Check the specs on your battery and compare to epever manual.

Sorry mate dont follow? Isn't that the point of a circuit breaker - to trip or manually isolate a circuit?

Yeah mate if you don't care about how much of the power is used from your panels - ie just for maintenance it wouldn't matter. If your trying to maximise the power out of your panels then it might.

Haha thanks Bruce! Glad it helped

Correct. Minimal difference in power loss between the two if your solar Vmp is close to your charging voltage. But the higher your solar voltage vs battery/charge voltage the higher your energy loss in a linear relationship.

@@sunbiasolaroffgridsolution6545 Good to see, there are some people who understand it. Not just MPPT good, PWM bad.

nah it shouldn't - you have to do it yourself

Glad it was helpful!

Yeah mate parallel if the voltage stays the same. All batteries have positive connected together same with negative.

Glad it was helpful!

Hey mate. The only way you can control when your loads are cut off from the controller is by running it through the load output on the controller. Then you need to go into the battery parameters (with an mt50) and you can edit the low voltage cutoff. There’s another video on how to edit battery parameters. Hope this helps.

Sorry for the slow reply - it should have been fine

Sorry mate.

Hey mate. Easiest one to answer. You can definitely have load on while charging. The charger will just deliver the power coming in from solar directly to load and surplus to battery or draw from battery to load if not enough solar. Now do you mean when you press the load button it turns the load on and off? Thats strange that the SOC % is changing. I would have thought maybe when you turn the load on and its being powered by the battery that the SOC % showing will drop because when a load is on the battery the voltage will drop slightly. The SOC % is just a calculation based on the battery Voltage. Can you do this again and tell me what the voltage of the battery is each time you do this? Eg 86% 13.3V, 56% 13.1V.

Hi man thks for answering🫡 , ok load is on says battery 86% at 13.3 v. Press esc/power load goes off , controller reads 12.7 v at 56%. Something is wrong, something to say no matter if load is on or off 12v appliances light etc all dc works fine regardless . Multimeter reads 13.1 v . Thks new on this things sorry

One more thing aswell when i unscrew the load terminal cable , charger goes off 🤷 feels like the load is on constanly powering all the 12v things on the caravan

@@gustavoprezioso9687 No worries mate. hmmm, this is sounding pretty strange. Do you have a photo of your set up you could send? When you turn the load off the light on the left turns off? The circuit you are powering off the load doesn't have a battery connected to it does it?

GGGG - sorry mate I didn't see this comment till now. I think the new models now have pre-programmed LiFePo4 charging profiles which is sweet and you don't need the MT50. The older versions don't have a pre programmed LiFePo4 profile and you needed the MT50 to create it.

MT50 always handy to have at any rate.

Hey mate. Thanks for the message. Yes you can connect pos and neg of solar into the breaker from your panels then out to the MPPT. An anderson plug on either side is also fine and a good idea for your application - ie to unplug and use elsewhere. No reason for using a different breaker only that’s what I had on hand. If you look at my other video I use a heavy duty battery isolator switch and fuses on the cable to isolate from the battery to the mppt/distribution. This is a better option over a circuit breaker if you have big loads from the battery - like an inverter.

Nah not entirely. Really depends on your solar panel or solar array's operating voltage. If you've got 60Vmp of solar coming in charge a 12V battery a PWM would enormously less efficient than an MPPT.

Maybe in 2002

Hey mate - sorry for the slow reply. So in parallel you add the A and the volts stay the same. So yes it will now be a 12V 210ah battery!. Hope this helps. Let me know if you have any more questions.

On the values or how to set them?

@@sunbiasolaroffgridsolution6545 on how to get to the options to set them

@@oxmate you using an MT50? The time in mins should be available to edit when you go into customise the charge profile. Like when you go into adjust ‘user’ alongside the voltages there should be a time to adjust for equalize

Hi there - plug the sensor into the controller and run it down to the battery. Tape it to the side of the batter or positive terminal should be fine.

Hey mate here is the link - www.epever.com/wp-content/uploads/2021/04/XTRA-N-Manual-EN-V4.4ETL.pdf. Starts at page 32

@@sunbiasolaroffgridsolution6545 that is awesome.

Hey mate. Well yeah I think in theory it should work but I’ve not done that before. I’d imagine You’d have to have a good connection to the container to let the power flow. Trial one and let me know how you go.

@@sunbiasolaroffgridsolution6545 right on. Much aloha. Thx bra. I just saw how you had the positive wire going to that disto box. And I had that idear Hmm how do you complete the circuit from that disto box anyway ? I’m super new to solar. Kinda cowboy my way thru tings Shoots bra

@@rjayareg9124 no worries man. Let me know how you go. I have a second version of this video. The set up is a lot neater than this one with the busbar. Happy powering 🤙🏻

Im getting somewhere... :) finally. I wrote down each parameter and voltage. Going through the list i was able to see which setting was not allowed compared to others. Quite a mission..

@@markkennard861 hey mate. Yeah it’s a pain if you don’t know. You have to adjust the voltages in a specific order otherwise it can’t accept it because not obeying the algorithm rules. The manual shows you all the rules. I had a markup of what order to do it in. If I find my mark up showing the order I’ll send it to you. Send me an email if you like

@@sunbiasolaroffgridsolution6545 Yes indeed. As great as they are its not documented on how to aproach programing. Think you need to start at the end of the list and work your way to the start. As a guide i set the user parameters to the N06 preset figures and worked from there.

@@markkennard861 yeah ok cool. So you got it sorted m?

@@sunbiasolaroffgridsolution6545 Awesome.. do i post my email address here ?

Do you mean on the controller

@@sunbiasolaroffgridsolution6545 yes.

Hey Mate - the circuit breaker ‘holder’ has a plastic frame with a din rail and you just screw that down. Link to one here www.tradezone.com.au/product/b-r-2-pole-plastic-circuit-breaker-enclosure-22519.html

Hey Mate - the circuit breaker ‘holder’ has a plastic frame with a din rail and you just screw that down. Link to one here www.tradezone.com.au/product/b-r-2-pole-plastic-circuit-breaker-enclosure-22519.html

Hi Julie - very sorry I didn’t see this comment. I just leave the durations as original - 120mins I think. The numbers should be from the manual or the battery manufacturer specifications.

@@sunbiasolaroffgridsolution6545 Thanks for your answer. All batteries don't have that spec, when contacted, some manufacturer are unsure !! . Suggested in the previous manual setting's of the MT-50 (non lithium) is 120. User is 20 to 180. New suggested Lithium settings for the MT-50 the equalize duration is not mentioned. that's why I wondered what you put in :-0)

@@projet2907 hi Julie. I don’t think equalize is required for lithium batteries that’s why not mentioned.

@@sunbiasolaroffgridsolution6545 Yes. Equilize is 0 or off. Boost duration, the last setting on the MT-50. It would be 180 min- not there either for suggested lithium settings. but suggested by Battle born for the MT50 - epever solar charge controller. thks

Well yeah you could. I think the key point here is - a pwm is fine for small systems where the solar panels voltage is close to the batteries voltage.

Gday mate. Sorry for the slow reply. You can email directly. What sort of Epever mppt do you have and what battery are you charging ? Is it lead or LiFePO4? Shouldn’t matter what dcdc you use in relation to your mppt. Premium is redarc, next is victron or enerdrive then probably last is renogy.

Haha yeah that shed is hoooottt in summer. Free sauna though. I’ve got a fan rigger up but it doesn’t do much. I don’t spend that much time in there during the middle of the day.

Hey mate - yeah 760W panelsis just ok for a 12V battery. The max is 780W I think. Can be in series or parallel it doesn’t matter cause you only have two panels.

Hi No will be fine

Thanks mate. Glad it helped