EPEVER 40amp charge controller now has LiFePO4 settings installed! Yeah man!

Big convenience for all those struggling on LiFePO4 parameters. One button , and done. Sweet.
Entire system so far:
Chins 12.8v 300ah LiFePO4 battery: amzn.to/3F8quHj
Reliable 12v3000watt pure sine wave inverter: amzn.to/3fbUXJK
EPEVER 40 amp charge controller: amzn.to/3zIHe6T
Victron 12v 30amp smart charger: amzn.to/3FqHd8Z
Newpowa 12v 100watt monocrystalline solar panels:amzn.to/34xi3Zj
Solar panel extension cable: amzn.to/3JS7EI1
Solar panel isolators: amzn.to/3tfXz1I
Isolator junction box: amzn.to/3taStUl
50 amp breaker: amzn.to/3FcBfZa
As an Amazon Associate I earn from qualifying purchases

[@kevincrawford2027]

Thanks for showing those settings. I have a LiFePO4 battery coming and have the older EPever . You just saved me a lot of figuring. Been enjoying you videos.

[@ProjectsinParadise808]

Hey glad it helped you... that's what its all about. Thanks for being part of the sharing of information...good luck to you🤙

[@mariananicolae4984]

Bună ziua. Am si eu un controler EPEVER 4210AN și un MT 50. Folosesc un acumulator 12v auto 75ah Plumb Acid si vreau să iau un acumulator LIPO4 12V 150AH. Are setare pentru încărcare LIPO4 ,sau trebuie făcută manual din MT 50? MULȚUMESC MULT

[@prestonpetersen5558]

Thank you... just moved to LiFePO4 and have been struggling with what USER settings to use in my Epever - never realized it had a setting for this already!

[@ProjectsinParadise808]

My pleasure brother, happy it helped you. Aloha!🤙

[@learningoff-grid1688]

Well, now I will have to go thru and copy those settings on my older EPEvers. Thats nice to see the lithium setting from the manufacturer. Thanks as always sir!

[@ProjectsinParadise808]

And thank you as well! Yeah, very happy, and was surprised to see that as I scrolled through the settings 🤙

[@PhilTaylorPhotog]

Thankyou Thankyou! Just bought lithium in an emergency situation for my camper and was thinking I’ll need a new controller as I have the older EPever. Very happy to see I can now confidently enter those user settings!

[@ProjectsinParadise808]

Aloha! 🤙

[@douggoble9695]

And other on the last setting? Glad to know the upgrade on the new one! 🤙🏼This makes it so much easier. I didn’t understand why Epever didn’t do that in first place. That was the only thing I didn’t like about mine.

[@ProjectsinParadise808]

Hey Doug! Yeah old one still set up with parameters I set up in user setting. I'm going to reset it tomorrow to the Lithium settings that the new one has. I was so happy to see they added that in the newer model. Other than that, they are identical. Aloha buddy 🤙

[@ForOurGood]

Thanks for documenting those settings, much appreciated!

[@ProjectsinParadise808]

My pleasure! Aloha 🤙

[@socalives]

This is exactly what I have been searching for, LiFePo4 battery charging parameters for my Renogy Rover 40A mppt charge controller. I contacted Renogy with zero help on the topic.(Twice) I am using the "USER" mode for custom settings since the Renogy does not have the LiFePo4 factory setting. I have two 100Ah Enjoybot (same as Chins) LiFePo4 batteries in series for a 24V system . Thank you for posting! it's much appreciated!

[@ProjectsinParadise808]

That's great! I am always hopeful when posting something that was useful for me can help someone else. It makes a nice difference on these settings, and gives me peace of mind that everything is humming along as it should. Thank you for sharing this with us...aloha 🤙

[@jbennett3578]

Oddly enough, this video didn't actually teach me anything new, but it *clarified* things for me when it comes to setting up my Epever 4210AN for my new LifePo4 battery. I've been struggling with Epever's [expletive deleted] software, but after watching your video I got it worked out tonight. Oddly enough #2, my controller doesn't have a LifePo4 setting I can reach through the MT50, but the [expletive deleted] software does have a set of controller parameters for lithium batteries. Still had to tweak them for this battery brand, but now I can access and change them using either the [expletive deleted] software or the MT50. Even better, I finally worked out how to export the settings to a text file, so if I need to redo the controller, I can just import that file. Thanks for the help! Liked and subbed.

[@ProjectsinParadise808]

Mahalo and welcome to the channel! WIthout the MT-50 I doubt I would have ever got this controller dialed in. Even with it , it took me longer than I thought it would to have it working properly. Granted I am not the most technical person, but still, it should be more user friendly IMO. Over the past couple years I have upgraded to Victron, and never looked back. Plug and play on those, and making life here much easier, for sure! Glad you got something useful for your application out of the video. I am always hopeful that that is the case on all what I share. Aloha! 🤙

[@jbennett3578]

@@ProjectsinParadise808 Aloha back atcha! I'd have sworn I was already subbed to your channel, but either I clicked the wrong button or KZbin played a dirty trick on me. I thought I was subbed because I have a warm spot in my heart for all things Hawaiian. I was born in Arkansas, but my earliest memories of this planet were formed on Oahu when my father was stationed at MCAS Kaneohe. The first two fish names I learned as a toddler were "shark" and "humuhumunukunukuapuaa ". :)

[@kalypsoisland]

Perfect! Congratulations on your purchase.

[@ProjectsinParadise808]

Thank you! Cheers!🤙

[@bobflyer4346]

Just about ready to program my EPEVER with the add-on MT-50 which has the user setup for LIFEPO4. Thanks to you, I can now just copy the manufactures recommendations settings. Which I wrote down from your video, Thanks. My build is for a solar generator for emergency back-up 2.5kw 24vdc system ( I will double the setting values you show)

[@ProjectsinParadise808]

Hey, happy to hear you could make use of the information. That's what it's all about, helping each other. I was so happy to see this new programming installed, making it much easier than it was previously. Good luck, and thanks for being part of the conversation here...aloha 🤙

[@johnussss]

This is the info I've been searching for "is it simply double the charge parameters when using 2 x 12v batteries in series" I hope that is correct, I might buy a new controller as I'm also going up in total AH on the batteries and setup another set of solar panels then use the settings from the new controller to setup the old one.

[@defjamsgreen]

A GREAT WAY OF FINDING OUT THE NEW LITHIUM FEATURE ON THE NEW EPEVER . I KNOW YOU'RE HAPPY . ALOHA 🤟

[@ProjectsinParadise808]

You know I was giddy when I stumbled upon that! Still am! aloha 🤙

[@mariananicolae4984]

Încărcarea pentru LIPO4 este aceeași si pentru LITIU-Ion ? Este aceeași setare?

[@s.c.7140]

This is what I was looking for. Thank you.

[@ProjectsinParadise808]

Glad I could help!🤙

[@ooaqici82qb4ip]

Exactly what I was looking for...Thanks

[@ProjectsinParadise808]

Glad I could help🤙

[@JR-kk6ce]

It is a game changer. I'm sold on it, I'm getting one, maybe two. For the solar power Isolator, I just use an HVAC disconnect, the kind that is outside the hose next to the ac unit. It is a metal box and you just pull out a handle and it disconnects the panels from the controller. It cost about $8 at Home Depot.

[@ProjectsinParadise808]

I would have never known about the HVAC disconnect you mention. That's way cheaper for sure. I am thrilled about that Lifepo4 setting in the new epever...I didn't even know they had done that until I got ready to set it up. Sure makes it easy!🤙

[@ProjectsinParadise808]

Hey JR... wanted to thank you for the kind words and support from my last video on the Ampere Time battery. I saw your comments, but had made an error in the video, so I deleted it, which also deleted the few comments associated with it. I reposted today, with the correction in the video, but just wanted to say mahalo 🤙

[@props-model-shop]

Nice setup. Everything is looking good. Now that we all have learned about LiFepo4's , coming soon, Sodium Nitrate Lithium Batteries are on the way. Bluetti will be using in their units.

[@ProjectsinParadise808]

Thank you! I'm definitely having fun with it. Hadn't heard of the sodium nitrate batteries...oh boy something new to learn, Haha 🤙

[@skepticalmechanic]

Thanks for this video… just went out and bought the epever 40 amp with the Lifepo4 setting… really was not feeling confident with programming my own parameters into the charge controller and destroying $800.00 of my new Lifepo4 battery bank…

[@ProjectsinParadise808]

Nice! Good luck with your system! I had to ho back to user settings, as the built in setting was a tad high for my system...aloha 🤙

[@robertmeyer4744]

looking great ! now you know about long wire runs . remember the solar array voltage . that voltage can zap you good . always disconnect mc4 at array first for safety. down the road you may add a double pole weather proof disconnect right on the nice wood frame you made. use 2 of them. I used fused disconnect my self. I am in NY and we get our shear of bad weather even 2ft snow high wind. I grounded my metal frame on my array . surge protection as well . do some research on EMP Harding your system. lots of KZbin video's here how to do it. what I am working on now. electro magnetic pulse can come from the sun solar flair or a close buy lighting strike.

[@ProjectsinParadise808]

I am going to look at those fused disconnect for under the array you mentioned. And I'm going to research and watch some videos on the EMP protection. I've taken two direct lightning strikes in the past. One at 9000 feet in the Rockies. Hit a tree next to my cabin, arched to my hot water heater exhaust and blew a hole through the wall as big as my fist, then grounded on my wood stove. My battery bank literally boiled for days, and lost controller and a few appliances. 2nd time was here years ago...another direct hit. I knew I was in another terrible storm, so unplugged and disconnected everything ...didn't matter. Lost everything except solar panels on that one. It even blew old romex through the walls that had been completely cut off and weren't tied to anything. Lightning makes me nervous. Thanks for sharing all your invaluable information Robert...aloha 🤙

[@michaelfitzpatrick3641]

Comments you may wish to consider. Temperature compensation is not needed for lithium batteries. Charge voltage, boost volts, may be too high at 14.5 volts for many lithium batteries . 14.2 volts is less stressful and less prone to put the battery into protection mode. Float volts is too high at 13.8 volts. This keeps the state of charge at absolute maximum and degrages the battery. 13.5 or 13.4 volts is prefered. Boost duration, the absorbtion phase , needs to be quite short, a maximum of 30 minutes. With panel strings its important to keep the string open circuit volts below the rated voltage of the controller, five panels is very near the limit. Note as temperature drops panel volts increase. Mike

[@ProjectsinParadise808]

Mahalo Mike for the great information! All the charging points you mention are exactly what I use these days. 14.2 absorb/bulk and 13.5 float. Much appreciate the reminder. Aloha! 🤙

[@fvjuke]

Can provide all of your updated settings please. I cannot find absorb and bulk in the settings…

[@rudivandoornegat2371]

great news indeed. Quite a difference does the cable size difference make.

[@ProjectsinParadise808]

Was nice seeing the side by side comparison...those extra amps on the 8awg will add up🤙

[@faffybubs9099]

Thank you I running a epever bn goes well was looking lithium setting. Awsum my friend

[@ProjectsinParadise808]

Mahalo! Appreciate you tuning in...aloha 🤙

[@ivank196]

Thanks for doing this. I have the same charge controller as your first one. I used the settings from this video and all was fine until I disconnected from PV first and battery second to install a cigarette lighter jack. It was only disconnected for about 10 minutes. I went to fine tune equalization time and noticed all of the custom settings were lost. This is my first LiFePO4 battery (Chins) and it hasn’t been great. Just a heads up to anyone else here doing the same to check periodically that there settings haven’t changed unexpectedly. Thanks!

[@randylenart9674]

Nice set up they had a sale on those panals a while back and i bought 30 of them hope they work out as well for me 👋🇺🇸

[@ProjectsinParadise808]

I love these panels, and under ideal conditions they always exceed a little bit on rated output. Plus, the build quality is very decent, and fairly priced. Hoping you get much the same results....aloha 🤙

[@checkingoutgypsymike2075]

Nice unit!!

[@ProjectsinParadise808]

Slowly, but surely it's coming along🤙

[@Theoppositeofchaos]

Thanks for sharing 👍

[@ProjectsinParadise808]

Happy to do so🤙

[@1981dasimpson]

i loved mine but mine was the old model where you could put 3 times the amount of solar then the 520 watt limit for 12v the newer ones i belive can not be over panaled as much found manual for the new an model max solar wattage is 780 watts so extra panals could mean you get a more steady 40 amp output as the controller will ramp power back when 40amp is reached cables wise you should be using 6awg

[@ProjectsinParadise808]

🤙😉

[@fathergratwick]

I also had issues with the epever settings and had to go with a lower 14.4 voltage myself to get the battery protection to not kick in and momentarily cut the power as it reaches a full charge. I saw you also had to change yours in the followup video you did.

[@ProjectsinParadise808]

Yeah , got the epever now set to 14.2. Still messing around with it trying to find the absolute sweet spot.🤙

[@fathergratwick]

@@ProjectsinParadise808 14.4 is actually working for me.

[@williamwonser3525]

Thanks again for the video, does the Epever mppt have a low temperature setting cutoff for lithium batteries ?

[@deanzimmer9974]

Thanks for posting this. I am setting mine up today. It does have the lifepo4 option , however I went to user and tried to change the settings to what the battery maker recommends. Several of the settings would give me an error and not allow me to save it. Strange.

[@ProjectsinParadise808]

For me the obstacle on those errors was the boost reconnect setting. I had to set it first at 13.2 then everything took. Mahalo for being part of the conversation 🤙

[@fuppeduck6120]

The test myself and many others would like to see happen is 100ah lead acid battery aginst a 100ah lithium running exactly the same load which battery last longest would really love to see that test

[@richardyates5321]

Nice set up. What all do you run with this system??? Thanks for sharing this.

[@ProjectsinParadise808]

Thank you! System is for whole house. Biggest draw is a 20 cu.ft. refrigerator that runs 24/7. It's working perfectly, and I'm very happy how its working. 🤙

[@codraven57]

I am just courious as to why you like these EPEVER charge controler so well? Have you looked at the Growatt controler/inverter in one complete system?

[@ProjectsinParadise808]

I really like the price point , and the reliability of the Epever, as well as how good they have been working for everyone. I have looked at many other controllers including the growatt. I've just been upgrading as I can afford, and the choices are many anymore. Still very happy with what I've got atm...🤙

[@avivtomer2617]

The old version m50 does not adopt the automatic lifepo4/ lifepo8 settings; insted programing the m50 on "user" reset the device parameter to "user" mode at the given parameters. Thank you. (The new tracer an 30A is also LIFEPO4/8compatible)

[@kairasa3536]

Someone may have already commented about this but I'm pretty sure you don't want any temperature compensation for lithium batteries, so I set my Epevers to minus zero, it won't let you set it to zero but it will let you set it to minus zero, and that turns off temperature compensation.

[@ProjectsinParadise808]

Copy that, and thank you for pointing that out! Gonna change that right now...aloha 🤙

[@sebydocky5080]

Hi, got another question. I have also the cheap tracer1210AN for a small 12V project coupled with a 100W panel. I applied the default LF04 settings included. I am using the load port to run a 12V fan. I noticed under load, the voltrage drops a bit but the charger didn't want to charge again while the sun is still there. Do you know the parameter voltage to start again he charging ? or do I need to decrease boost time to 0 min ? Thanks in advance if you have the answer for my question.

[@houseofancients]

you might be able to update the software running on your charge controllers

[@ProjectsinParadise808]

That's a really good point, and it very well may be possible. I'm a bit challenged with that, and don't have anything to do that with, but in the manual it does show having that pc connection, and settings possibilities. Thank you for sharing this information with us 🤙

[@jasonbroom7147]

I don't know if this is true for EPEVER charge controllers, but many electronic devices can have their firmware updated. This is the software used to control a piece of hardware and you may very well find that after updating the firmware on your older unit it will have the new built-in setting for LiFeP04.

[@ProjectsinParadise808]

That's a great point, and something I haven't tried as yet...but I'm going to look to see...mahalo for that information 🤙

[@skepticalmechanic]

I don’t think there is anyway to update the software on the controller… unlike Victron controllers that cost a small fortune…

[@sergea1138]

Mt50 device is not firmware upgradable

[@BobBob-il2ku]

You can update the charge controller software but not the mt-50

[@shaystern2453]

how many kWh per month does the 1st string generate?

[@marvinspeedperformance4316]

Hi I have the same epever controller, my PV is 41 volts 3amp but only 12.4 volts coming out from the controller, not 14 volts I got new battery 100ah led acid .

[@ProjectsinParadise808]

🤙

[@John-xu3jk]

I understand now that the MT50 is not necessary to setup LiFep04, that it's all accessable through the units buttons, is this correct ? I have the 2022 Epever 2310an with a 300ah Chins LiFp04 's on the way.

[@ProjectsinParadise808]

MT50 not necessary, but highly recommended in my opinion. Without it, it's a bit confusing, and more difficult than I would want to deal with. Have heard much the same from others...aloha 🤙

[@fathergratwick]

EPever did create a software update for these last july with has the setting for lifepo built in. they released a video on how to update them but i cannot find the software file on thier website for download.

[@fathergratwick]

followup, I found the upgrade video and emailed the link in the description and they emailed me back a virus disguised as the update file so disregard my previous message

[@ProjectsinParadise808]

yikes

[@car2069]

The difference in amperage between strings might have more to do with the age of the panels than the gauge of wire. I highly doubt 10 gauge is restrictive at under 10 amps. You should be fine.

[@ProjectsinParadise808]

All panels are fairly new, and of same voltage and amps. But, I take your point, and thank you kindly for sharing 🤙

[@car2069]

@@ProjectsinParadise808 still differences can and do exist. Try swapping the wires between strings of panels and seeing if the amperage delivered changes based on the panels or the wires. 10 gauge at that length should be capable of 30 amps.

[@avivtomer2617]

@@car2069 The top line may atrract more sun rays, otherwise why does trees grows higher?....

[@johnussss]

Thanks for the video, have the older Epever 40a without the Lithium settings included, I have a 24v flooded setup with this same controller, the batteries are near the end of their life, will be buying 2x 12v lithium batteries that are suitable for series connection, can anyone tell me if you simply doubling the charge parameters for 24v, there is very little online about setting up the older controllers for 24v lithium. Can I ask why people setup these chargers for 12v when doing so halves the total Watts you can supply the charger from the panels, if this setup had 24v battery you would only need one controller as it would be able to use the wattage and voltage from all the panels you now have and 24v systems transfer the current from the charge controller far more efficiently.

[@vanmasterflash7153]

How's it working? Mine lasted 8 months. Never any mistakes. Started making high pitched noise then eventually started reading very low voltage(14.7). Tested with multi meter and yes indeed it was low. Unhooked the pv wires and the voltage was back up to 80v. Hooked up to bluetti and pv was 80v. Hooked back up to junk epever and voltage started at 80 and within 5 minutes was back down to 14.7. Hope you have better luck than I. Also heard they are very inefficient but I thought it was fine.

[@ProjectsinParadise808]

I'm making a video about this very problem in next few day's. In fact it has been all I've talked about here where I sit in last three days. Just had one of my Epever 40a charge controllers fail with nearly identical problems you mention, and have heard from others as well. I have 500watts offline at the moment as a result. Backed up on video's atm, but have already started filming. Coming soon...mahalo for sharing this information with us...aloha 🤙

[@vanmasterflash7153]

@@ProjectsinParadise808 Worst part is no warranty. I should've checked that before I purchased. Big red flag.

[@DigitalMind.254]

Hey dear I am facing power dropping issue in series connection. I have connected 340watt and 380watt solar panels in series to epever 40A mppt controller with 12v battery. It show power of one panel when I disconnect solar connector and reconnect, the mppt show both Panels. It’s hard to do this every morning. It was fine in winter but now summer starting and facing this issue. Using both panels form 2 months. after wire disconnect and reconnect the voltage jump from 33-36 to 75v. If something wrong with one solar panel then it should not work after replugging mc4 or solar wire in the mppt after that It work whole day but same issue next morning Both panels volts amps are little different. Tesla 34.51v maxpower 33.18v. Tesla amps 11.01amps maxpower 10.29amps.

[@arveskjellanger4121]

Someone who can answer why my 51.2 v 16s battery is «full» st 43.2 v? Dont have cable / display so used the «sel» setting as the manual said that could be used. It charged until 43.2v, then it says battery is 100%. Any suggestions?

[@NeoVdV]

Yesterday I could borrow an MT50 from someone and found out that one of my two mppt is not read by the MT50. I could access one mppt and program it in user setting, but the other one doesn't communicate with the module as so I can not read/write from the MT50 to/from the mppt. :-( Is there a way to reset this mppt TracerAN to reboot ?

[@Antotirino]

I have the exact same regulator but to set the lithium on mine it says user and not LFPO4 and when I enter your parameters in some steps it gives me an error. I do not understand why

[@joeo8396]

How do you change the AH of the battery capacity?

[@roysylvester5723]

when i run 5 100 watt panels in series i get 107 volts which is to many volts for my 40 amp 100 volt charge controller.... what am i doing wrong.....

[@danieldougan8550]

I agree Roy ,I have 4 in parallel and they put out 85 V most of the time

[@Reudiga]

can i update my tracer6415an with the software to use LiFePo4? Or how to get that?

[@drfrank777]

HI! Got a question for you. My Epever 3210AN is just 2 years old, but has no settings for LiFePo4. At least, none that I can assess at the unit. If I get the "remote," will it show that there is in fact a setting for LiFePo4 batteries? Thanks!

[@BobBob-il2ku]

If I use this same charge controller with a 24v lifepo4 do they have that preset or do I have to manually enter it? (FYI this controller also has low temp disconnect/protection now with the optional temp probe sensor plugged in)

[@ProjectsinParadise808]

Not sure...I have one that does, and one that does not. Manually setting your parameters is what I had to do to really dial in for my situation. 🤙

[@notreallyhere7719]

How did you configure the old one fir user defined settings. Or do you use gell?

[@ProjectsinParadise808]

I now use 14.1 for bulk,and 13.6 float. That's what is keeping this system humming along nicely now. Your mileage may vary! Aloha 🤙

[@notreallyhere7719]

@@ProjectsinParadise808 I'll be getting 4 100 ah renogy batteries. What do u set bulk/ boost reconnect? 13.2 seems a little low, that could be 70% soc. Seem like 13.3-4 might be better

[@whosspyingonme]

Hello would you mind helping me I see your settings are for a 600amp battery setup I only have a 100amp battery. Are these settings generic across all battery amperages . Because I just copied yours into my old mt50 Thanks

[@ProjectsinParadise808]

Yes, they are for any size 12v Lifepo4 battery, however I have had to ho back into user settings and set my boost to 14.3v now. The 14.5v pre set for Lifepo4 was a tad too high and kept triggering alarms on mt50, and the inverter. Hope this helps you 🤙

[@whosspyingonme]

@@ProjectsinParadise808 ok Thanks for letting me know so I can do the same Glad you got the preset mt50 ..I've written down all your settings👍

[@HaskaTice]

Can I ask where you got the controller from and when?

[@ProjectsinParadise808]

Links for controller in description of videos. 1st one I've had over a year, and 2nd one a few months now...pretty happy with them. aloha 🤙

[@sebydocky5080]

Hi, first contact with an EPEVER product (Tracer6420AN) and trying to setup all parameters for my 48V LFPO battery....I am using the PC software and it's a nightmare .... very very buggy.... Is your battery a 12V or a 48V ? coz you set everything for a 12V model.

[@ProjectsinParadise808]

If you aren't using the MT50 to program the controller it is a nightmare. I use the MT50 on both, and it is easy, and makes a world of difference. aloha 🤙

[@ProjectsinParadise808]

And I'm running 12v btw.🤙

[@sebydocky5080]

Thanks for your answer. I managed to do it via the PC software !!! The trick is to export all parameters into a text file, change there the parameters and import the settings again. The crazy thing is all decimal values need a comma as separator not a point .... and with my french keyboard and this software, when typing a comma nothing appears. If you enter a value with a dot as separator, of course there is an error message... Weird... I did a small video on my YT channel (e-2-nomy) but it's in French language. Cheers.

[@danieldougan8550]

How are you getting 30 to 35 Amps out of 5, 5 amp panels?

[@ProjectsinParadise808]

Panels are closer to 6 ampsx5 is my 30 amps, and briefly, when colder can see 35, and even 38 occasionally. But when warmed up, and sustained, it usually settles around 25- 30 amps.🤙😎

[@explore1018]

I'm having trouble understanding that as well.. If you have panels at 6 amps in series the amperage does not change. If the panels were strung together in parallel then amperage changes voltage stays the same. In series voltage goes higher amperage stays the same. You are not pulling in that much amperage , your charge controller is converting the voltage that you're getting into Amperage that's what's great about mppt charge controllers. Great setup by the way! Aloha

[@clarencemartens3831]

Thats what an MPPT controller does....converts 12v x5 at 5-6A (5 panels in series!!) to 12.7v @ 25-30A. DC-DC buck converter.

[@TheValeisha]

After 2 years does it still work?

[@DUCato-ed3fw]

This is great, to have their lithium parameters available to program the older version. Annoyingly though, once you've set up all parameters for Lithium, if you change the battery type back to say, sealed, the go back & select user it doesn't save the lithium settings you'd programmed in so you have to start over...

[@ProjectsinParadise808]

I agree, it is annoying it won't save those parameters. I have written them down more than once as I have flip flopped between settings that work the best. aloha 🤙

[@meverly7834]

I just bought this same unit and mine doesn't have the LiFePo4 settings :(

[@ProjectsinParadise808]

Yeah, some have it some don't. In my case it didn't matter as I had to resort to user settings to make it work for my system anyway. The pre-set Lifepo4 function was too high. 🤙

[@boscodog4358]

My problem is not the actual programming! It the vocabulary. What is the same language with A Victron. Please compare EPEVER language/settings. To Victron language/settings.

[@ProjectsinParadise808]

One of the next videos is a side by side of those two controllers, and why I am all in on Victron now. Aloha!🤙

[@1981dasimpson]

how far are the sla settings from the lifepo4

[@ProjectsinParadise808]

You know they're not really that far apart, and in the beginning I considered using the sealed setting. Over voltage discharge is a little higher at 16.0v, but other than that it's all pretty close. I'm happier with finally seeing a true Lithium settings now however. 🤙

[@1981dasimpson]

@@ProjectsinParadise808 I knew they where ment to be close never had lifepo4 so not looked into settings

[@jamesthomas7928]

I just bought one with the MP50 in the New Year and it doesn't have the Lithium setting. I've got to go to USER and the fart about trying make it behave on a 24v system. I feel cheated but I guess I'll get over it

[@ProjectsinParadise808]

Ended up back on user setting myself on those units.🤙

[@williamwonser3525]

Which model epever ?

[@ProjectsinParadise808]

Im using two of the 40 amp controllers from them. aloha 🤙

[@badactor3440]

I think 13.8V for float is too high. It is widely accepted that 13.6V or less will prolong lithium battery life.

[@ProjectsinParadise808]

I agree, and have everything dialed down to 13.5v for float these days...working well. Aloha! 🤙

[@bradlyons7046]

I have no experience with solar panels, batteries, charge controllers, or inverters; I want to design and build a 12V direct current portable outdoor, solar powered swamp cooler that does not require an inverter. So far, I have purchased four 12V, 100W, 7A portable briefcase solar panels which will be wired together in parallel to produce a total of 400 Watts, 28 Amps. I will be using two 12V, 120W, 10A automotive radiator fans and a 12V, 3A submersible water pump. The swamp cooler box will be made of varnished / waterproofed wood with evaporative honeycomb swamp cooler water bricks in the back. I want to use a lithium battery instead of lead acid battery, but I don't know how many amp hours the lithium battery needs to be. I will not be using the swamp cooler when there is no sunlight to power the solar panels. The total number of amps of the two fans plus the water pump, will be 243 amps, but an auto store manager told me that 12-volt, 120-watt, 10-amp automotive radiator fans cause a momentary amperage surge (power surge) each time during power-up, and he said the momentary surge can be as much as 4 times the amp rating of the fan motor which would be 40 amps power surge from each fan motor (80 amp total power surge if what he told me was true). I will be connecting a motor speed controller with on / off switch to each fan motor to be able to turn-on and slowly increase the speed of each fan to the desired air flow of the swamp cooler during each power-up of the swamp cooler. If you were me, would you buy a 40A EPEVER Solar charge controller, or would you buy a 60A charge controller for my swamp cooler? How many amp hours should the lithium battery be for my swamp cooler?

[@jbennett3578]

The words "I have no experience" and "I want to design and build" make me nervous. I'm all for innovation and tinkering, but only if someone has the basics down. I'm not sure you're there yet. For example, you got amps and watts confused when you came up with that "243 amps" number. That is *not* a minor mistake. What you've got are fans that pull 10A with a startup surge that might reach 40A, right? 40 + 40 + 3 for the water pump = 83A surge, with a normal total current of around 23A. What you're putting together as a power supply for your swamp cooler is a basic 400W solar PV system that a lot of people, including me, have put on vehicles, except you'll be omitting the inverter. Check Will Prowse's channel and website. He has plans and parts lists to build exactly that kind of system and build it so it will work safely.

[@sNEAKYnIGHTmUPPET]

the loss you would expect to see from undersized wire would be VOLTAGE DROP, you aren't getting that. your lower MT50 showed a higher voltage. my guess is that you will not see an increase in power by going with a larger wire. you may find that moving the lower CC will shorten the OUTPUT path, and THAT may make a change. if not, it may be panel degradation causing the difference. If you want to do a definitive TEST, just swap the arrays outside, change WHICH array is connected to what charge controller. This will show you instantly if it is the WIRE run or not. I would do this PRIOR to buying more wire. I appreciate larger wire whenever I can, but if you don't get a GAIN from it, then it is a WASTE of money. Also, it is MORE important to upsize your 12v wire FROM the CC, as that is a lower voltage (higher current) and is more likely to suffer voltage drop.

[@ProjectsinParadise808]

That is some great information for me to chew on, and I really appreciate you explaining it in such detail. I'm continously leaning all these aspects or wiring from thoughtful comments such as yours....mahalo!🤙

[@sNEAKYnIGHTmUPPET]

@@ProjectsinParadise808 it is after all something I do professionally, so I don’t mind sharing the information. Make a video performing those tests and let’s see the results. 😃 mahalo

[@ProjectsinParadise808]

@@sNEAKYnIGHTmUPPET Michael...thank you for bringing my attention to the video I made earlier this evening on overdrawing the bms. It was a terrible mistake on my part, and I have removed the video so as not to promote that mistake. I'm going to reshoot that part of it and mention my bad when I re upload hopefully tomorrow. Mahalo 🤙

[@sNEAKYnIGHTmUPPET]

@@ProjectsinParadise808 yeah man, happy to help. If you need any other help, I am happy to assist. I have literally done these system so many times in my career it is all pretty much second nature at this point. Since I have your attention, you should really consider getting away from 12v and goto at least 24. Since you already have two of the CHINS batteries it is not a huge upgrade. Just get yourself a MPP SOLAR or Growatt all in one. You will never regret it. Trust me on this. I personally always recommend 48 v systems to start, but 24 is still better than 12. Mahalo

[@ProjectsinParadise808]

@@sNEAKYnIGHTmUPPET You definitely have my attention brother. I agree with everything you've shared with me. The fact it's all second nature with you I take comfort in. I've definitely been stretching my knowledge quite a bit, and look forward to when I can feel that confident. Tonight however , I'm frustrated with that error. I'm more than a bit embarrassed at my oversight, and grateful you caught it quick as you did. I won't soon forget what I learned tonight. I'm humbled by the thought of maybe a thousand other people might of thought that was okay...I'm shaking my head at that thought. But onward ho yeah. I'll not soon forget this. Aloha

[@SayWhaaaaaaaaaaaaaaaaaaaaaaat]

GAME CHANGER????? ALL THEY DID IS FILLED SETTINGS THAT YOU CAN FILL WHEN CHOOSE USER.THAT'S IT