SRNE MPPT 40A Solar Controller - Features, Installation & Demo (Model ML2440)

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Last spring, I installed and tested a 40 amp MPPT solar charge controller sold by a company called BougeRV. So far, it's been working well. Link to the install and review videos - www.loveyourrv.com/testing-ou...
Amazon Link - amzn.to/3qCs9Rj
I was recently contacted by the actual manufacturer of the controller called SRNE and asked if I'd want to look at another of their controllers. Link to in-depth specs and features - www.srnesolar.com/product/mpp...
The timing was great as I was thinking about replacing my old PWM controller and running dual 2 MPPT controllers for my RV solar system charging. In this video, I give you a look at the various features of the model ML2440, a look inside, then installation and demo of it in action.
I plan to use these 2 solar controllers boondocking this winter and come back with a second review video in spring 2022 on how they performed. Stay tuned.
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Опубликовано:

17 ноя 2021

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Комментарии : 90

@bertandyvonne.campers6157 2 года назад

Hey Ray, I've had this exact same MPPT charge controller since the early spring of 2019 in my truck camper. It's branded as an Armada 40 and I was happy to pay $259 cdn at that time. I have it setup with 2 x 300 watts 24 volt solar panels run in series and mounted flat on the roof. It charges our 2 X 420 amp hour 6 volt Rolls AGM battrries connected in series for a 12 volt system. We've used the camper year round since then from Vernon, BC in summer and the South West USA in winter without any issues. We have a 20 amp breaker on the solar side and a 40 amp breaker on the battery side. I for one love it and would buy it again. We hope to bump into you again like we did at Saddle Mountain BLM back in 2019. Enjoy you trip south this winter.

@HarleyFLHRCI99 2 года назад

I’ve got the 40amp SRNE. Very happy with it no issues. Used in my off grid shed. Purchased from AliExpress 2 years ago.

@bboyda4399 2 года назад

Thanks Ray, will look forward to the update.

@garryhammond3117 2 года назад

Great review Ray! - Thanks!

@otislis7157 Год назад

You really helped me with the installation of this solar controller. Thank you 😊 your good no nonsense

@wkam002 11 месяцев назад

Hey thanks for sharing, I found the explanation of the MPPT display very helpful.

@mrc1539 2 года назад

Glad to hear you are in Oregon , sounds like it’s pretty wet in BC . Hope you have a nice trip on your way south .

@LoveYourRV 2 года назад

Glad to be here! :) Thanks

@realbudgiesmugglertwohatsb2611 Год назад

This post is easily the best as far as setting the battery type buggered if l could see the symbols so this got me set up for lithium as it was on lead acid..mine is a 20 amp kick ass same difference but without this post l would never had figured it out fro. Manual alone. Nice one mate thankyou 👍

@richardmarlowe422 2 года назад

Good to hear you are headed south again. Missed your videos. Enjoy your trip

@LoveYourRV 2 года назад

Thanks 👍

@Bokul112 2 месяца назад

@@LoveYourRV brother Lumiax good or SRNE

@lawrencedavidson6195 2 года назад

I just got the Rich Solar 20amp charge controller. Greetings from sunny Jamaica.

@robertburgess6100 2 года назад

Great video Ray! Welcome to Washington St. Enjoy

@dirtroadsailing6418 2 года назад

Nice review Ray. One thing that sticks out to me about this controller is its physical size, the thing is huge, but that might be a good thing for component reliability in the long run. I don't have anything good or bad to say about it, but one test I'd like to see you do is overpower it with solar panels since you have more than anyone. I have 6 - 200 watt 24 volt solar panels feeding into 2 Victron 30 amp solar controllers and so far so good, but that is more than they're supposed to handle.

@LoveYourRV 2 года назад

Will do, I tried 940 watts feeding the previous smaller size 40 amp controller and it performed well, it just doesn't pass any extra wattage and only maxes out at the 40 amps charging current. The SRNE have over voltage and panel wattage protections so you can over panel them. If they heat up they also have temp protections and will reduce the current until the controller cools down. Tried that when we had 104 degree weather last summer.

@ThailandMadeEasy 2 года назад

Your video is a lifesaver! I live in Thailand and don't have access to many MPPT controllers save for this one. Before I buy it, I needed a rundown in English and this helped so much. My only question: If my lithium battery is completely drained, will this work on initial startup? Or do I have to charge my lithium battery first? My original (and very cheap) MPPT controller failed and my battery drained down to 3.7 volts. Would it be dangerous to attempt to recharge the battery? Is it considered fully discharged at this point and unsafe? It does have a BMS in it for overcharging and over-discharging protection, but now I'm worried it's damaged.

@LoveYourRV 2 года назад

Best to ask you battery manufacture about that. If it is a 12V type lithium battery with BMS it should have cut off at about 10.8V not 3.7V seems awfully low.

@projet2907 2 года назад

Thank you Ray, always nice to see your good work and reviews 😊. There is so so much stuff out there!! How will I ever choose new batteries and add a solar panel 🙈. So much to choose from !! If I go lithium does the converter needs to be replaced? The inverter? Thank You for all you do. All this while being on the road and taking care of regular day to day to do stuff, taking care Anne :-0). You have super energy level. Take good care, safe travels. Cheers 🌞

@LoveYourRV 2 года назад

You're welcome, yes, it's amazing how the product offerings have grown. It is generally a good idea to get a converter that is desined specifially for lithium batteries but may not be totally needed depending on the model of lead-acid converter one has. For example, my OEM does a terrible job of charging my lithium batteries but my aftermarket InteliPower with manual boost can be used quite well for the task. So I haven't need to change. Here is a video I did explaining and demoing it - www.loveyourrv.com/lithium-battery-charge-test-can-you-use-a-lead-acid-charge-converter/ Cheers! Ray

@projet2907 2 года назад

@@LoveYourRV Thank You very Ray. What I find confusing also is the kind of answers I get while consulting a store. The things they tell sometimes,,, The lack of knowledge. Especially back home in Quebec where there is very little of everything. Have you heard of Volthium Lithium self-heating batteries?

@LoveYourRV 2 года назад

No, can't say I have heard of them. I don't think most RVers need a self-heated battery. Just wire the lithium batteries inside the living area of the rig or add some heat to the storage compartment they are in. The beauty of lithium batteries is they don't vent any gases and can be mounted in any orientation. So they don't need to be outside.

@projet2907 2 года назад

@@LoveYourRV Yes indeed, I lack space inside. I would have wanted to leave them outside. I do hit -15C sometimes in November back home. But I will recheck under the bed by the inverter. Doesn’t it emanates some sort of electric or electromagnetic field, something that could be a sleep or brain- body disturbance?

@LoveYourRV 2 года назад

No, lots of people install the batteries under the bed. If worried you could always install some reflective metal shielding, but really a phone or laptop will emit more radiation since a person is so much closer.

@user-ue4nb5cn2y Год назад

Hi Ray, Many thanks for the video. What size cables did you use from the solar to the batteries?

@LoveYourRV Год назад

I have my roof panels wired in parallel versus series so need a little more wire thickness. So I have 10 gauge from each panel to a junction just below the roof, then a 6 gauge run down to the controller.

@stevecrowe176 2 года назад

Hi, thank you for the vid, it's excellent!! Better than vids made by fellas in Australia. I live in the land down under, Australia. We have that controller here it's sold by a company called KickAss 20A $120ish and 40A $190ish, it's rebranded as KickAss here. I have the 40A model. A few questions if ok. What size cable did you use from the solar panels to the 40A controller? Similarly what size cable you use from the 40A controller to the 2nd battery? Lastly, you answered one question, you fitted a 40A resettable circuit breaker from 40A controller to the 2nd battery. BUT you didn't mention what size resettable circuit breaker you used from the solar panel to the 40A controller? Cheers, Steve

@LoveYourRV 2 года назад

I'm using 6 gauge for the controller wiring from the panels and to the batteries. Between the solar panels and the controller I don't have a breaker I'm just use battery disconnect switches. If you're interested you can view my current full off grid power system here www.loveyourrv.com/our-rv-boondocking-power-systems-current-state-of-things-2022/ I recently did an update video on it while camping in Utah. Cheers, Ray

@tangoalpha8381 Год назад

Very good charge controller 🏆🏆🏆🇧🇷🇧🇷🇧🇷

@colormesilverr 2 года назад

Hi, I have this same model and I wonder how do you monitor the dod? Does it mean if the battery icon shows 2 bars then I’ve used up 50% of the battery? Thanks in advance.

@LoveYourRV 2 года назад

Yes, but there is also a screen you can access that will show the battery DOD in percentage but keep in mind these figures can be inaccurate since they are just based solely on voltage and that can fluctuate based on the load the battery is under. I'd look at it as a rough guide to the state of charge. To get an accurate figure you'd need to install a more sophisticated battery monitor system that uses a shunt to keep track of the amperage in and out of the batteries.

@colormesilverr 2 года назад

@@LoveYourRV Thanks for responding! We’re totally clueless and this really helps.

@robert0joe 2 года назад

Hi! I saw in the manual that the User/Manual Settings only get up to 17v, how would one set a 24v lithium custom profile?

@LoveYourRV 2 года назад

I'd assume that when the controller auto recognizes that its connected to a 24V battery versus 12V at hook up it would automatically double all the parameter settings. Maybe the manual didn't list them. You can contact the company here for confirmation www.srnesolar.com/contact-us

@arayis3842 2 года назад

I recently bought the same charge controller in 20 amp. While it is charging the first light on the box lights on and off. Is that how it is supposed to be or does it have to be a constant light?

@LoveYourRV 2 года назад

Page 11 of the manual tells you what the LED indicators mean. How fast they flash means different things www.srnesolar.com/wp-content/uploads/2020/11/MPPT-Solar-Charge-Controller-ML2420-Instructions.pdf

@yves8639 2 года назад

Hi Ray, just purchased 2 100 amp SRNE controllers as my charge controllers for my 2600 watt solar array. I know they can be set to run in parallel and all setting from the “ host” are copied to the “slave”. My challenge is that the instructions to do so are clear as mud. Have you had any experience with that?

@LoveYourRV 2 года назад

No I haven't reviewed 100A model controllers. As far as I understand they need to have a communication cable hooked between them then maybe some setting adjusted to activate the parallel operation. Here is the SRNE contact page, maybe they can advise. www.srnesolar.com/contact-us Cheers, Ray

@user-oo2jc9pk7s Год назад

здраствуйте. хотел бы узнать. у меня такой-же контроллер SRNE. подскажите пожалуйста. если отключиться бмс от кантралера то он может сгореть я выставил зарядку на литий индикатор синий. а акумуляторы у меня lifepo4 железо фосфатные. он не сгорит при отключения бмс? или какую тип батареи выбрать под литий подскажите?

@Milo-Kitti 2 года назад

Aloha Ray, we were wondering if you are gonna head back To California since borders are now Open, we really enjoyed it past videos of Canada and California.... Mahalo from Big Island Hawaii 🤙🏽😁

@LoveYourRV 2 года назад

Yes, currently on Oregon :)

@Milo-Kitti 2 года назад

@@LoveYourRV awesome

@neomatrix2722 4 месяца назад

Thank you for sharing I just installed this today and I have two questions one how do I get into the custom profile to adjust my bulk absorption and float two I have no load but yet the load light is on in fact there are no wires installed to the load to this device any ideas as to why and how to remedy

@LoveYourRV 4 месяца назад

Here is the manual www.srnesolar.com/wp-content/uploads/2020/11/MPPT-Solar-Charge-Controller-ML2420-Instructions-1.pdf It involves pushing the right sequence of buttons. For custom you want to set the USE mode. But usually, the preset functions work fine. I use Li for my lithium and it works well. The manual shows how to adjust the load setting If you can't figure it out, I highly recommend buying the add-on Bluetooth and using the app. Way easier. :) www.aliexpress.us/item/3256804400967653.html SRNE App play.google.com/store/apps/details?id=com.srne.androidapp&hl=en_US&gl=US Cheers, Ray

@neomatrix2722 4 месяца назад

@@LoveYourRVthank you so much for the manual super appreciate it I have another question when the Sun goes down do all the lights turn off the charge controller second question what is the power draw if left on during the night

@LoveYourRV 4 месяца назад

In the manual, the spec for No-Load Loss says 0.7 W to 1.2W. As for the LED lights, the solar led goes off at night, and the load goes off if there is no load set, but the battery LED will stay lit as long as the battery is hooked up. But power loss is minimal so I won't worry about it.

@neomatrix2722 4 месяца назад

@@LoveYourRV thank you so much for your reply as I have light still on at night time this means I must have it hooked up wrong or settings not off I'll recheck the manual thank you

@unclelala4216 2 года назад

Are you still using your Renogy DC to DC charger?

@LoveYourRV 2 года назад

Yes, its been very useful for the last couple weeks traveling in the pacific northwest coast as there isn't much sun to be had.

@marloa1115 Год назад

have you tried to upgrade this to 24v with morethan 550w charging energy? can it handle 20a charging on 24v?

@LoveYourRV Год назад

Yes, for a 24V battery system the max solar wattage doubles to 1100W so that means it will still max out at 40 amps on the charge output www.srnesolar.com/wp-content/uploads/2020/11/MPPT-Solar-Charge-Controller-ML2420-Instructions.pdf

@smitty3509 2 года назад

Srne web site lists the charging specs at 20A. How can that be if I'm pumping in 40A at 22V?

@LoveYourRV 2 года назад

Probably a website typo. Here is the manual azimuthsolar.ca/wp-content/uploads/2018/10/ML2420-30-40-datasheet.pdf

@smitty3509 2 года назад

@@LoveYourRV thanks! Good video, keep it up.

@Romyorangsumatra 5 месяцев назад

mppt srne which is 20 amperes, is it able to work with a current of 20 amperes from the solar panel input

@LoveYourRV 5 месяцев назад

Usually no, if it's a 20A SRNE MPPT charger, then the battery charging output will max out at 20 amps, so the solar input will be lower than that since the solar panel voltage is usually higher than the battery voltage.

@Romyorangsumatra 5 месяцев назад

@@LoveYourRVIs there a protection system on the 20 Ampere mppt if the current or Amper is more than 20 amperes

@LoveYourRV 5 месяцев назад

@@Romyorangsumatra Yes, the controllers can dump the extra solar amps, and also, if it is too hot, they can reduce the charging amps

@Romyorangsumatra 5 месяцев назад

@@LoveYourRV MPPT Srne 20 Ampere, given input of 38 volts 13.5 Amperes, to charge a LifePo 4 12 Volt 100Ah battery... I wonder if it is safe to make the MPPT yourself...

@ryansportstv731 Год назад

hi sir..is it possible to charge one battery with two solar charger control i mean two system..but the same 12v but differ on panel wattage? i have two separate system the same 12v. one is with mppt 40a 550solar panel and the other one is 20a mppt srne with 200w panel..is it possible??

@LoveYourRV Год назад

Yes, I've done that with my RV system and it worked well.

@SoloIdeas8805 Год назад

Hi! Let me know if you know how to change the temperature from C° to F°. Thanks 🙏

@LoveYourRV Год назад

I could be wrong but I don't think it is possible.

@SoloIdeas8805 Год назад

@@LoveYourRV ok. Thanks 🙏. The answer that I was afraid to hear!! 😂

@LoveYourRV Год назад

If you add 15 to the Celsius number and then double it its an easy to do rough calculation not totally accurate but puts it in the ballpark. :) For example 15C + 15 x 2 = 60 F or 25C +15 x 2 = 80F and so on

@SoloIdeas8805 Год назад

Thank you 🙏

@esaulorozco6377 Год назад

Hi i have the same can you please explain me how it works 30a or 40a i am confused .. thanks

@LoveYourRV Год назад

The model shown in the video is a 40 amp. You'll be able to tell which amperage the controller is by the model numbers last 2 numbers. ML2420 or ML2430 or ML2440 20 amps, 30 amp or 40 amp Manual www.srnesolar.com/wp-content/uploads/2020/11/MPPT-Solar-Charge-Controller-ML2430-40-Instructions.pdf

@ricardocondori7395 2 года назад

Hola buenas tardes favor si alguien me puede ayudar con la configuración del controlador ML4860N15; Tengo panel en 96 V de entrada, BB VRL de 48 V 100 AH

@kmetkmet7 Год назад

You connected the users directly to the battery?

@LoveYourRV Год назад

Sorry, I'm not sure what you're asking.

@volferm 2 года назад

Hello, CAN THE 4S LITHIUM ION BATTERY BE CHARGED WITH THIS DEVICE? VOLTAGE 16.8. THANK YOU FOR THE INFORMATION.

@LoveYourRV 2 года назад

Sorry but I don't have that type of battery to test it on. But here is the manufacture contact information www.srnesolar.com/contact-us

@volferm 2 года назад

@@LoveYourRV Tahnk you. CAN WE ADJUST 16.8 V WITH USER MODE?

@LoveYourRV 2 года назад

It says in the specifications user mode battery parameters 9-17V www.srnesolar.com/wp-content/uploads/2020/11/MPPT-Solar-Charge-Controller-ML2420-Specification.pdf But I haven't tested it.

@volferm 2 года назад

@@LoveYourRV Ohh ML2420-Specification thank you :)

@jonsonwoody9899 Год назад

Sorry for my ignorance but does this controller supply AC to the load?

@LoveYourRV Год назад

No, it supplies DC up to a max 20 amps. Its basically a way to control a DC load. It can be set to turn off when the solar stops at sundown or set for certain hours of the day or all the time, manual switched or off. When used without the solar charging the batteries then supply the power. One use case is to power lights on a timer. I use it to power my tire pressure monitor repeater. I have the load set for manual operation so it acts like a switch. Cheers, Ray

@timimi9876 9 месяцев назад

Boa tarde. Será que vocês teriam o arquivo de atualização do mppr ML2420 ? eu agradeço

@kenxavier5847 6 месяцев назад

Você vai encontrar no site do fabricante

@ryansportstv731 11 месяцев назад

hi sir..is it safe for the battery using double charger 40amps srne? i have 2s2p lvtopsun battery for now 24v 200ah..and i have 2 charger 40amps srne with 1100watts each charger..Im too worried about the charging current as to the heat of the battery since some of the lifepo4 battery max at 50amps charging only. But when i scan the data sheet for my battery it can continously charge upto 100amps..Since i have this set up somestime it charged at 35amps each scc..so total.of 70amps.. Is it.safe sir our battery with this c condition?

@LoveYourRV 11 месяцев назад

I'm not sure, best thing to do is contact the battery manufacture and ask them. My guess is that it safe but may reduce the lifespan of the battery to charge it at high amps too often. They usually have a continuous charge rate specification for long life and then a max charge rate.

@luizfernandorodriguesdesou6031 2 года назад

Tem essa explicação em português. Obr

@user-bi3ic7ny3c 2 года назад

When the MPPT mode is turned on

@willieolarte5986 2 года назад

How much the price please...

@LoveYourRV 2 года назад

Here is one I found for $99.60 amzn.to/3voyF0O

@LoveYourRV 2 года назад

*Link to more in-depth info on the SRNE ML2440* - www.srnesolar.com/product/mppt-solar-charge-controller-ml2420 Previous BougeRV version installation www.loveyourrv.com/testing-out-a-cheap-40a-mppt-solar-charge-controller-from-bougerv/

@liedj2317 2 года назад

I don't think your Progressive Dynamic charger is designed for Lithium batteries. I changed mine to the lithium version to get the full advantage of the batteries.

@LoveYourRV 2 года назад

It wasn't specifically designed for lithium but if willing to manually push the boost button on the optional charge wizard pendant it will work really well. Been doing that for years for generator charging. If I remember right it will stay in boost mode outputting 14.4 volts for 4 hours.