Complete LiFePO4 Solar Battery System Design (Updated Blueprint in Description)
ฝัง
- เผยแพร่เมื่อ 19 พ.ค. 2024
- This video is outdated. We now have BMS that can do everything! Also, do not use a battery protect with an inverter.check page below for update schematics:
www.mobile-solarpower.com/des...
Raw cell and bms deals: www.mobile-solarpower.com/raw...
Does off-grid solar confuse you?
Check out my DIY friendly website for solar system packages and product recommendations, and so much more! www.mobile-solarpower.com
Join our DIY solar community!
#1 largest solar forum on the internet for beginners and professionals alike:
www.diysolarforum.com
Check out my best-selling, beginner-friendly 12V off-grid solar book (affiliate link):
amzn.to/2Aj4dX4
If DIY is not for you, but you love solar and need an offgrid system, check out EnergyPal! They will price out a system and get your house offgrid: energypal.com/diysolar/
My Solar Equipment Recommendations (Constantly updated! Check here first):
12V/48V Lithium Batteries: www.mobile-solarpower.com/sol...
Solar System Component Directory: www.mobile-solarpower.com/sol...
Complete 48V System Blueprint: www.mobile-solarpower.com/48v...
Plug-N-Play Systems: www.mobile-solarpower.com/ful...
Complete 48V System Kits: www.mobile-solarpower.com/com...
DIY Friendly Air Conditioner/ Heat Pumps: www.mobile-solarpower.com/sol...
My Favorite Online Stores for DIY Solar Products:
Signature Solar
Offgrid One-Stop-Shop. Best Value 48V LiFePO4, Victron and Offgrid Specific Heat Pumps:
www.signaturesolar.com/?ref=h...
Current Connected
SOK, Victron, Mr.Cool Heatpumps and High Quality Components:
currentconnected.com/?ref=wp
Ecoflow Delta
My favorite plug-n-play solar generator:
us.ecoflow.com/?aff=7
AmpereTime
Cheapest 12V batteries around:
amperetime.com/products/amper...
Renogy
A classic 12V solar store that has been around for ages!
renogy.sjv.io/n1VjXx
Rich Solar
Renogy's biggest competitor! Similar products, but at a better price:
richsolar.com/?ref=h-cvbzfahsek
Battery Hookup
Cheap cell deals
bit.ly/2mIxSqt
5% off code: diysolar
Contact Information:
I am NOT available for personal solar system consult! If you wish to contact me, this is my direct email: williamprowsediysolar@gmail.com
Join the forum at diysolarforum.com/ if you wish to hang out with myself and others and talk about solar
FTC Disclosure Statement and Disclaimers:
Every video includes some form of paid promotion or sponsorship. Some links on this youtube channel may be affiliate links. We may get paid if you buy something or take an action after clicking one of these. My videos are for educational purposes only. Information is subject to change/update at any time. Electricity is DANGEROUS and can kill. Be smart and use common sense :)
DIY Solar Power with Will Prowse is a participant in the Amazon Services LLC Associates Program,
An affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com
![[TH] 2024 PMSL SEA W2D5 | Summer | วันอาทิตย์ จะขิตหรือจะรอด!](http://i.ytimg.com/vi/-4JLNwQRK-Y/mqdefault.jpg)
This video is outdated!!!! DO NOT USE a battery protect in this system. Updated schematics can be found here:
12v: www.mobile-solarpower.com/design-your-own-12v-lifepo4-system.html
*Does off-grid solar confuse you?*
Check out my DIY friendly website for solar system packages and product recommendations, and so much more! www.mobile-solarpower.com
*Join our DIY solar community!*
#1 largest solar forum on the internet for beginners and professionals alike:
www.diysolarforum.com
Check out my best-selling, beginner-friendly 12V off-grid solar book (affiliate link):
amzn.to/2Aj4dX4
If DIY is not for you, but you love solar and need an offgrid system, check out EnergyPal! They will price out a system and get your house offgrid: energypal.com/diysolar/
*My Solar Equipment Recommendations (Constantly updated! Check here first):*
12V/48V Lithium Batteries: www.mobile-solarpower.com/solar-batteries.html
Solar System Component Directory: www.mobile-solarpower.com/solarcomponents.html
Complete 48V System Blueprint: www.mobile-solarpower.com/48v-complete-system-blueprint.html
Plug-N-Play Systems: www.mobile-solarpower.com/full-size-systems.html
Complete 48V System Kits: www.mobile-solarpower.com/complete-48v-solar-kits.html
DIY Friendly Air Conditioner/ Heat Pumps: www.mobile-solarpower.com/solar-friendly-air-conditioners.html
*My Favorite Online Stores for DIY Solar Products:*
*Signature Solar*
Offgrid One-Stop-Shop. Best Value 48V LiFePO4, Victron and Offgrid Specific Heat Pumps:
www.signaturesolar.com/?ref=h-cvbzfahsek
*Current Connected*
SOK, Victron, Mr.Cool Heatpumps and High Quality Components:
currentconnected.com/?ref=wp
*Ecoflow Delta*
My favorite plug-n-play solar generator:
us.ecoflow.com/?aff=7
*AmpereTime*
Cheapest 12V batteries around:
amperetime.com/products/ampere-time-12v-100ah-lithium-lifepo4-battery?ref=h-cvbzfahsek
*Renogy*
A classic 12V solar store that has been around for ages!
renogy.sjv.io/n1VjXx
*Rich Solar*
Renogy's biggest competitor! Similar products, but at a better price:
richsolar.com/?ref=h-cvbzfahsek
*Battery Hookup*
Cheap cell deals
bit.ly/2mIxSqt
5% off code: diysolar
*Contact Information:*
I am NOT available for personal solar system consult! If you wish to contact me, this is my direct email: williamprowsediysolar@gmail.com
Join the forum at diysolarforum.com/ if you wish to hang out with myself and others and talk about solar
*FTC Disclosure Statement and Disclaimers:*
Every video includes some form of paid promotion or sponsorship. Some links on this youtube channel may be affiliate links. We may get paid if you buy something or take an action after clicking one of these. My videos are for educational purposes only. Information is subject to change/update at any time. Electricity is DANGEROUS and can kill. Be smart and use common sense :)
DIY Solar Power with Will Prowse is a participant in the Amazon Services LLC Associates Program,
An affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com
Hi Will, can you explain why you now say to not use a Battery Protect?
brassmonkey001 I guess it’s because the battery protect Will used doesn’t have a delay. With low voltage disconnect devices, you want to use one which has a delay which means this allows the voltage to drop temporarily below your minimum voltage setting e.g. half a second or 5 seconds, whatever.
Some DC loads will have an initial big current draw (start up current if you like) which drops the voltage of the battery. Once they are working normally the current draw is much smaller.
I’m only guessing this is the reason but I always buy low voltage disconnect devices with a delay on the relay kicking in.
@@stevekent3991 actually not. It's because victron made an update saying not to use with inverters. Check out my community section and forum for more info on the update. Delay not necessary in this application
I'm looking to put together a system like this and noticed that your updated schematics still use a common-port BMS, despite the drawback you mentioned at the end of the video. Is there a reason why you didn't change the design to use separate ports? For the BMS you recommend, both common and separate port versions are readily available at about the same price at Aliexpress, so the separate port version seems to make more sense with a solar charger.
Another thing -- With your design, the output load current is no longer regulated by the BMS, which means that the discharge rate of the batteries could exceed a safe rate of discharge for battery longevity, depending on the loads (size of inverter + other loads like the 12V dc-dc buck converter), and the batteries chosen. In your schematic, I note that you have added separate fuses for both the solar charger and the inverter, yet these are not specced or described at all in the text. Is the purpose of these to limit load/charge current, or just provide added protection? If the inverter is properly sized, they might not be needed for this purpose. Also, could breakers be used instead? I'd be interested in any comments you have about this aspect of the design.
@@andreafalconiero9089 I guess the idea is know what the load is and add a fuse inline so you can't draw too much. It seems like the whole purpose there is to be able to draw a massive current, larger than the BMS would be able to handle. Although I'm not sure how many will need to pull those kind of currents regularly on a small system.
One thing this system doesn't deal with is if a cell is going over voltage. BMS can't stop the CC from charging because the CC is directly connected to the battery. To fix this problem, I think you'd need to add another relay in parallel with the load relay that disconnects the solar panels. But then if you hit under voltage in the BMS, you disconnect the load and the panels so no charging........ but battery is protected..
Dilemma.
I suppose it's better to get back and find no charge than finding a broken battery (cell). Is there a better way to do it Will?
I learn more with Will than I ever did in high school. I love the way he explains everything. Thank you Will awesome videos.
I love how excited you get... This really will make more powerful systems flexible and somewhat affordable.
I always love after I'm completely amazed at the complexity of what you do, you end it with "See, that was easy!" You have a gift, and I'm happy you share it with the world. Keep doing what you do!
Will, I love the way you edit out pauses. All business and I appreciate that.
Love your enthusiasm and getting all giddy when you're setting this up!
Love the enthusiasm and energy you bring to your videos. Still got a few years of life left in my old lead acid solar system (off grid 13 years in Spain) but thanks to well explained video feel fairly confident I could convert system at some point in the future. Many thanks (ex telecoms tech. retired).
I can’t tell you how valuable your content is! Incredible wealth of knowledge! I’ve been searching for a good in depth way to understand solar setups and for so long. All of your tips on lithium batteries, BMS, and how to set everything up is worth it’s weight in gold. Thank you so much for the information and keep up the great videos!
Thanks for your enthusiasm, never loose it! I had the same feeling when I built my portable 550W 18650 pack last year - ‘wow - I did it, this is amazing’.
Planning for a new lifepo4 pack, for winter use, -40 outdoor temp. Your input here is invaluable.
Thanks a thousand times.
Davidian, Did you ever get info on how well these fair in low temps? I want to use these in a mountain cabin that will be totally shut down in the winter. I know the batteries cant be charged at low temps, but how cold can they be stored?
I've been watching you for a while, and I'm still a beginner, but I feel that once I determine which direction I want to go with my system your instruction will be invaluable! Keep the vids coming, please!
I am an electrician for thirty years in a steel mill, I do have DC experience on overhead cranes.
You are not hard to follow I have doing this a long time learning terms is the hardest thing.
I'm going to keep watching to get familiar with components and terms. Thank you for doing this, I think it's great.
I have 25 years in the 12 volt industry and have been doing projects like you my whole life and in my opinion you do an excellent job explaining everything in an easy to understand way. Thank you for also introducing me to products I didn't know about. Keep up the great work!
Thank you!!!
So yesterday I took delivery on my BMS and started to think about how to hook it up, possibly using my Victron Battery Protect. So today I find your video telling me how to hook it up. How perfect is that. Thank you so much Will, you are the best.
Building it in front of us makes us feel that we can do it.
Great videos, Thanks!
I love the way you do a real video. Things go wrong and you show it and then you show how to fix it. Great video. I'll be building this soon.
Your content is always so well thought out, Will! You've got another winner here. Thank you so much!
Fotocamera
Thanks Will! I am a 78 YO solar student who thoroughly enjoys your tutorials!
William, you are the most adorable teacher.
Thanks for your videos....
It's awesome watching your excitement and passion for building these systems. Keep up the great work, we love it!
I'm watching your videos over and over - just ordered my first setup. Thanks a lot!
"It's very simple guys" Love your optimism
You are amazing at what you do man, keep it up learning a lot, the basics can never be too much.
Great info Will. First solar component build you've done I was able to follow and actually begin to understand.
Can't find someone who can explain this better. This guy is smart and the best teacher. Thank you for your always brilliant videos.
I love how he actually enjoys what he is doing. Makes me want to go wire stuff up.
Well, I'm so new, my green is even greener!!!
You seem like a very intelligent young man! And also seem to know exactly what you're talking about!!
Kudos to you!!
If I were to build one myself... I'd definitely start from square one with your videos and on up to this one.
(56 year old mom and grandma.. lol)
My goal is to have at least a used RV and full time in it. Travel as much as I can while I'm able to.
So solar power is definitely part of the equation!!
Thanks for popping up in my suggested videos!!! 😁😁😁😁
Keep up the great content!!
For newbies there is always going to be something they don’t understand and there is only so much you can say trying to keep the instructions and explanations concise.
What could be helpful to newbies is to draw boxes with descriptions on your plywood to help them visually digest the big picture of what you are doing and building as they continue watching the video e.g.
For the voltage step down converter, draw a box or an outline of some shape or form around the step down converter and write a description of the device in the box, something like:
Converts 24v input to 12v output to use for 12v load
For the Victron Battery Protect, draw a box around it and write:
Low voltage disconnect to protect battery from over discharge (disconnect load at 24v - option 8)
For the Victron mppt charge controller, draw a box around it and write:
Regulates solar input voltage to safely charge the battery.
You get the idea. I know you don’t have much space to work with but some people learn better with visual clues.
If you are used to playing around with DC circuits and solar in particular, we all know what a voltage step down converter, a relay and a Victron mppt charge controller looks like but a newbie might be listening and watching but then forgets what the blue device is for or what the other blue device is for or what the grey device is for etc.
Hello Will, many thanks to your video. The explanations were spotless, loud n clear and had Professorial gravity. The amazing fact is that, you did not even refer to scripts and the lecture was flawless with no haas, errs and ahem like what we generally are accustomed to; from XYZ! Bravo, my friend.
One other thing that I was hunting for was; a solar powered LiFePo4 BMS. Trust me, No ONE , spoke about it during my entire search for the eluding item, The BMS for PV cell Charger.
Now, I’d gather all the pertinent info of all the parts and description, compile it and start a new venture.
That said, I thank you, once again for all the efforts you put in to make this video a great success.
Sincerely,
SK
You crack me up, I’m old enough to be your grandfather and I can only get 75% of what you’re talking about but I love you’re enthusiasm
Nice job,Will! To be honest, I did get a bit lost a couple times. It is a lot to absorb. But the system you built in this video seems to be very close to what I will need for a sailboat system that I envision. So I need to watch the video a few more times. And finish reading your book!
The only thing I see missing is my ability to buy all that stuff! Thanks a million for your videos, I like how you get excited yourself when doing them. Kutos to you and your research and your brain, Cheers
Will, you are the best. Your enthusiasm is contagious and I have learned a LOT from you and your videos. Thank you!
I've seen a couple of your videos before but really gets me is your enthusiasm over all of this. You can tell it's something you love , passionate about. So thank you for the education. I've got to build me a solar power system for my motorhome and I had thought about buying BATTLEBORN BATTERIES. Then a close friend told me about SOK batteries. So I want to learn more about then and found you. And found I may go with the DIY BATTERIES. It's the cost that keeps me from having this system . But the DIY may fit my budget, thanks to you.
This is one perfect example of a solar generator system. I love this setup esp. the use of a relay. Brillant!
Thank you for the straight forward explanations of the Solar charging system.
Will, you're an amazing young man. Stand strong.
Good job, Will! Great to see someone troubleshooting when they can explain what is going on on all these components. I ordered your book after the first video saw of you since after about 5 sentences I said this guy knows his stuff! 😀⚡️
I'm a little too beginner to truly understand everything but it certainly looks really cool. You're a hell of an electrician my dude
I think he’s going where most electricians have not gone.
Another great vid. Love your enthusiasm, instruction and insight! You motivated me to build my own system. Thanks for all your awesome content, Will!!
You did a great job on this video. Love the fact you didn't take anything out but worked through it as you went. GReAT Job !
Excellent video Will. You are a very good instructor. Even if I wasn't excited about technical subjects you always bring a level of excitement that everyone has to enjoy! Keep if up the great work you do please.
Thanks Will! I learn a lot with every video you upload!
I like the “oh my god it actually works” thanks Will Great demo !
The relay idea to bypass the bms was awesome, you are truly genius
I have to say, you explain everything very clearly, and building the system in the video is extremely helpful for understanding these solar applications. Thanks
That was great one piece at a time!!!!
I loved it I could understand and comprehend all of it and I’m just getting started in this!!!!
Thank you
Dan
Made it to the end, i love how you are always trying new things as you are making the video, sometime you surprise yourself. Keep sharing the knowledge. larry
You really inspire confidence! Thank you!
You will never go without power young man !! You are a great inspiration !! To me and I'm sure to your generation !! Great job solar man !!
Hey Will! My only critique would be: It's a little hard to follow when you re-wire things. Encoding this information at such a fast pace is challenging enough-- but it gets really hard when attempting to undo that encoding on the fly. That being said, that was an AMAZING overview of the full system, and I love your transparency in making new discoveries! A fantastic video either way.
Ther perfectly describes what I would like to put together. Very happy with the information. Thank you.
Loved your enthusiasm for making this vid. From an end user perspective without all that specialized knowledge, few people are going to know when to short out what to get a component running again. These kinds of things have to be designed so that they are truly plug and play for the average user. A person should be able to swap out any component without having to unplug this or that first and short this or that and all that other 'nonsense'. The companies that make these products have to build that ability into their systems/components.
Loved it. Needed to rewind sometimes. But will definitely watch again when i come to build a Lithium system.
Well done Will. I have read your book, great for layman. And,for this old EE. I highly recommend it for anyone attempting solar power.
Great job Will. You explained everything very well.
Amazing 😉. I learn something new every time I watch your videos. I’m new to this subject and you have opened my eyes to possibilities. I’m already have a system per your recommendations and it works great!! I like this system best so I may have to upgrade 👍😎 thanks for sharing your knowledge.
It was fun to see you having fun with it too. I really like it when people get in to what the love. All the best thank you for video. I bit over my head, but maybe if I watch it enough I will understand.🖒
You explaining precisely "ONE from Thousands"God Bless you!!!!
Thanks that one was fun. once (retired) an industrial mechanic - engineer followed most all of it! Been off grid since 85.
John Sparkman can I please as someone who has been off grid for some time what batteries do you use. Thank you
stotas2 Thanks for your curriosity; For many years Trojan T105's (series parallel) about 475ah. Now(5 yrs) 4 agm's total 700 ah. looking for best way to get to 1/2 that in lifepo4. perhaps 3 or 4 Battleborn tho on ss it may take a while. ✌
John Sparkman yes lithium are good but still pricey I am looking into pure lead carbon.
stotas2 Nice idea, wondered when carbon nano would integrate. Haven't found at least a 12 volt 100 ah battery yet, have you? Will be the recipient of a 25 kw solar system soon will need batteries to match. ✌
perhaps a new Sadoway cell for that.
Great video, love your enthousiasm! Greatings from Belgium.
This is a really, really great video! I enjoyed every second of it and really got some new ideas - like building a 24 V system to drive the inverter, and then have a 12 V converter to drive everything else. Too bad it is outdated. I really like your positive energy!
Thank you for making these videos. Not many people will spend the time explaining and showing how to build these solar systems
You really did an amazing setup.
Covered pretty much everything anyone may need safety and feature wise on a small system setup like this one. Nice touch with the DC to DC converter for the 12v relay.
Could you calculate overall efficiency for the entire system? Thanks, well done.
Fantastic video, clear and very informative. You are an inspiration my man, keep it up. You have me hooked!
That was fun as all get out! My eyes were glued to every single minute of this video! You’re a great teacher!
Great stuff. I've done a similar system for my off the grid coffee shop. It looked like a space ship with all the electronics, LCD screens and switches.
It was great!
Will: "It's so EASY!"
Narrator: It was not easy.
Holy moly. How did this get so complicated? Is it because he's using LiFePO4 batteries?
For some reason Morgan Freeman said "it was not easy" in my head :p
Will explains everything really well. Of course it's not always "super simple", as evidenced by the changing guidance on his website and all the comments in this video. Apparently technology is still maturing in this area, there's new BMS devices that change the way things should be done, in less than two years since this video was posted. I'm willing to learn, perhaps Will could replace this video with the new 'mo better "super simple" method.
This is where I'm at... good to watch this video again. Wish I would have gone with a larger inverter, but that's learning on the job
I recently found your channel Will! I really love your enthusiasm. It makes your video very informative and engaging! Keep up the good work!
If you are a complete beginner, this video is not for you! Please watch my beginner playlist: th-cam.com/play/PL7bvIB2TPsCjTUIr9WISFg8JcAPrJfzxz.html
Or read my book. It covers the fundamentals.
If you are a beginner in electronics and have done basic arduino, automotive electrical, small solar systems or 18650 lithium battery builds, then this video is for you!
Correction to this video. Do not charge up to only 13.3 volts. The charge curve for lifepo4 is kind of strange, and resting voltage is not the same as charge voltage. You need to charge up to 14.0 volts for 12v systems, and 28.0v for 24v systems, if you want to charge up to only 90%. If you want the full capacity of your batteries, charge up to the preset value that is available for lifepo4 in the victron menu.
The battery protect didn't need the converter and relay between the BMS P- (C- depending on BMS) and the remote ports.
The Smart Battery Protect manual figure 2 shows the battery negative can be connected to remote port L; figure 3 shows H remote port could be connected directly to the BMS load positive (provided the BMS has a P+).
On a BMS without a P+ such as the one featured in the video, the easiest way to wire is to connect BMS P- to the remote port L.
@@positronium3525 ahh crap I missed that. Will update it all. Thank you
@@positronium3525 I can't find the diagram. Can you send a link?
@@positronium3525 found the diagrams and am scared to do negative wire to negative remote wire. Is there any documentation of doing this elsewhere?
I can't get it to work. Tried with both remote inputs on both battery terminals. Also messed with settings. Not working
With each build video I understand more and with this one I'm just about ready. (Just bought the book but wish it had been available through Google Play). Two comments though. There are several points at which you stop to charge capacitors but I'm still unclear on when/why this is needed and exactly which leads are involved. Second, in other builds you make a point of disconnecting the solar charger before making some changes in a system but other changes are ok without the disconnect. I think I noticed that happening here once or twice, but again I'm not clear on when and why this is needed. These may be general knowledge points but a quick reminder of safety points would be helpful when you are doing full builds like this. Your step-by-step instruction is complete enough that it's likely someone who hasn't seen other videos will try the build and fry something. Might even be me! A link to a reference video or to a chapter in the book would be great. Thanks!
sdbpost good questions. I’m also in “learning” mode so I’m gonna try to give my answer and no doubt other comments will tell us if I’m right!
The solar panels start pushing power out whenever light hits them. The solar charge controller (blue victron mppt in this example) is there to manage the flow to the power storage (battery bank). But the solar charge controller doesn’t store the power itself. Therefore pushing power in from the solar panels when it has nowhere to go (because the batteries are disconnected) can damage the solar charge controller. Smart thing to do is connect the panels last or, if you’re testing during the build, ensure the battery is connected (via the BMS here) before connecting the panels and disconnect the panels first as you continue the build.
As for capacitors, whenever you connect a load or component to the system, if it draws power immediately, it can spark. Some appliances or components draw power even when they are “off” because they have internal parts that store power for specific uses - capacitors. So as soon as you connect these, the capacitors demand power and cause a spark. The reason to tap the wires first is to control the spark. You can hold the wire further back, charge the capacitors, then continue to make your connections without a surprise spark that either hurts or causes you to drop a wrench or screwdriver into your system risking shorting the battery!!
But like I said, I’m no expert - this is just what I believe based in watching a ton of videos.
Am I right?
@@jasonhughes6417 Thanks for the reply! So disconnect the solar panels anytime the path from the solar charger to the battery will be broken. That makes sense but I'm curious if it applies to other types of systems. My house solar array is grid tied and I have no battery. I assume the grid connection fills the role of the battery in this case since there is no problem in a blackout. Unless the point is there must just be some kind of load, not necessarily storage.
On the sparking, it sounds like the tapping can be done to the same terminals. I guess my confusion comes from other videos where I've seen someone do the tapping to a battery isolated from the system being built.
sdbpost the sparks will happen when there is an instant draw for power from a component. If the power is provided by the system battery or another battery, i guess it doesn’t make a difference. Of course, with capacitors they draw power until full. With an actual load that’s on, like an inverter with an appliance plugged in and attempting to draw power, you could spark it with another battery but then it’s gonna spark again when you connect it. Better to disconnect loads therefore. But the capacitors inside a component? Can’t turn those off!
As for your household solar system, I guess it’s configured so there is alway somewhere for your solar charge controller to send the power, either your domestic use, a battery or back to the grid. Depends on the configuration but the same applies about not sending power from the panels to the charge controller unless it has somewhere to go!
You gave me a great introduction into converting my home to an off grid with solar power. However, you over loaded my capacitors with your brilliance.
I've been trying to learn solar power and actually bought a short course at Udemy. Today your video on sizing just played on TH-cam and I got hooked. Thanks for the great tutorials. And yes I finished this video and will watch it again.
Great little system that covers all the bases!!! Did you think about another relay for the incoming solar power? When the other relay shuts down it could turn off the solar input as well while using the common port BMS. Thank you for all your work putting out these awesome videos!
When the relay shuts down the batteries need to be charged, so you want the panels to always be connected
No Will, YOU are amazing 😊 x
You just earn an honorary PHD in explain step by step with very clear detail. You are a genius.
Super Simple Schematic Solar Stoke!
You made learning a complex system very straight forward and enjoyable!
Thank you for creating this…
I think I read (on aliexpress) that a separate port bms by daly is limited to 8amps on the charge port. I could be wrong tho....? Love when you do long detailed videos. Keep em coming.
Oh that's the tiny model. Select the 60 amp one and it will handle 50 amps for charging.
Great Video Will....I really love watching these things...it's makes me feel like I know something about electricity and batteries and solar. However I only have the very basics...W=V*A. I understand what each component in the system does and could assemble it all with your step by step instructions BUT...I would never be able to trouble shoot the system if it stopped working and I would not know when to "short" between 2 terminals to charge a capacitor in BMS or Controller or Converter or Battery Protect Device etc... I also don't know the order of connecting or disconnecting wires from the different components; positive first or negative first. And I don't think this systems and these components are very forgiving if guessing which wires to put where and when. It would feel really great to understand everything but I don't think there is any short cut to learn it. For those reasons, I'll probably have to pay the cost of ignorance and buy the Battleborns with internal BMS to eliminate that setup along with the battery protect. I'll have to use 12 volt (and bigger wires) to eliminate the converter. I wish I could absorb it all, it would really feel empowering. It's like a rubic's cube to me. I understand the 6 different colors and that I want each surface to be one solid color and if you gave me each step for twisting and spinning the cube I could slowly follow it but I could never repeat it without the slow and tedious instructions...I could never understand how to get their on my own. You are doing a good job explaining and I'm catching a lot of it but I don't have enough of the basics to tie everything together.
Hello, I am French and congratulate you for all of your popularization videos on this topic which are really very well done and which explains all the monitoring parameters to take into account and their roles (better than all professionals in the sector). As far as safety is concerned, I would like to advise you to insert circuit cuts in your assemblies in order to be able to isolate the generators in case of necessity or simply maintenance for example (battery, solar panel and load) and finally, when handling with a current of this order of magnitude, do not forget to wear insulating gloves because the direct current is even more dangerous than the alternating current for the heart! Good luck and congratulations.
Will, how in the world did you learn all this stuff? I mean you’re so smart. You could probably teach yourself to fly a plane. You’re videos are mind bogging. You’re amazing.
Can you make a troubleshooting video explaining how you figured out each of the things that went wrong in the video and how you came up with the solutions for them? Thanks for the great video!
Can you be more specific? He more or less did show the troubleshooting.
"If you can crimp wires you can put this together!"
"Now just short out these terminals for a big ole gnarly spark ... "
Very informative, though - thanks for this!
Love your videos.Your a little above my head but each time I watch one I absorb a little more information.Still haven't decided whether to buy battle Born or go the prismatic cell route.I plan on building a schoolie and have enough energy to run everything I need to be completely off grid in Az. Thanks so much:)
Steve
Dude you were an absolute rockstar for posting this video, and the menu like it. I can't wait to set up my first system.
One thing that would be really helpful is if you could do a setup like this but use a kit like you would get from harbor freight or standard parts that a layman might buy off the shelf, just to demonstrate how those would integrate. Something to consider. Huge thanks
Will, one thing about TH-cam i can back it up and view it again ...and again. I got it! I could do this and want to build this for my Ham radio station . THANKS!!!! NE7TS
I think I fried some circuits in my brain trying to understand everything.
zpoedog The same over here :) Allthough he keeps on telling it’s like super easy :) Love the guy, great tutorial :)
I've been reading the "fried brain" comments and now I don't feel so idiotic. He's such a smart guy n makes it look so easy... Still 🤯
@@MyUltimateStuff I've been watching this video for a week and I'm only now understanding it.
me too 🤯 hes so smart and quick ... my head is fizzing 🤩
same here, If I manage this I think I can try brain surgery next
This is great. I've been looking for LiFePO4 system design info, and most importantly, parts sources. Next issue, charging from a vehicle alternator.
I'm 72 years young and never crimped a wire. Do you think I can learn? I love your videos. You are an inspiration
The kid makes a pretty good video. I love these batteries.
I just wanna build a solar set up for my Skoolie that will run my Airconditioner/ heater Mini/split unit!
You would need 10 times the panels and batteries to run an air conditioner.
There's alot of people doing this mate, I'm installing a split system to run off solar... Its expensive but can be done
@@wooferhound7571 ya...im JUST looking for a solar set up to run my iron smelter and a electric dumptruck
Watched this on 15 April 2021!!! Awesome info & examples, William!! Thanks for your expertise & willingness to impart your knowledge. I have your Mobile Solar Power book for reference ;but really enjoy watching your videos!!!
Thanks again Will for sharing. Sinopoly cells have been working great in my battery bank and I would highly recommend them. My bank has eight 400ah cells wired 2p4s for 800 amp hours @ 12v.
I think in this application you would be better served using your BMS on the negative of your solar panel wire.
As you wired it up you risk your solar regulator when the BMS cuts out for high voltage. Since you are really only using the BMS for charge protection I think it should work fine on the feed of the solar regulator.
I'd like to know how this would work.
I covered separate port bms for this reason, in this video. and on the website. and there is schematic available. It will disconnect the loads, and not the mppt.
I would have thought that that is kind of essential (the separate port BMS). Perhaps you should have done that in the Video. Doesn't the BMS then also "balance" charge the cells as the battery reaches full?
@@markelkins8432 I did cover it in the video. Did you watch the whole video?
I've just started thinking about this stuff, and just started watching, so I'm obviously severely undereducated on the topic, but as a person who has a small amount of experience with electronics and logic, why doesn't someone make something that encapsulates more of the things that are needed to achieve the end goal? I'm sure there are ways to manage the subtle differences in requirements...just curious.
They have many all in one systems, if you don't want to do the separate components. Will has some videos on some of them.
They have look at Redarc
yeap, just that these all in one systems have their limitation in configurability and of course there is the cost .. building your own you can mix and match brands and can manage the cost more .. though if your new , there is the cost of education that might make it more expensive if your not interested in the tinkering :)
“.... guys this is soooo simple!...”. 🙄. You are simply amazing Will! Thanks! 🙏
Brilliant, I don’t need solar at th3 moment, but this guy inspires me to just out one together! Seriously 😳
It made perfect sense to me, However had you tried to wire in a hooterflangis, I may have faded.
Thanks for all your hard work. As for following it, yes, to a point. I would have to follow one of your systems to a T and only adjust battery capacity or charge rate within the range of the hardware. I would be the limiting factor not your instruction.I would still be confident with the outcome though
You do this very well. I still have old L16s on my main house . I was saving to get some battle born. You make this look really easy. So I think I'm gonna DIY it. Haven't decided what route to take don't think I'm doing the 18650s to many places to screw up but these I like . Thanks for the good info