How to connect your batteries to make up a 24V or 48V solar system

How to connect your batteries to make up a 24V or 48V system

For larger systems with more than a couple of panels there are some advantages in running at a higher voltage:

  • DC cable losses are reduced
  • At higher voltage many charge controllers can run more panels

Most batteries are rated at 2V, 6V or 12V so you will need to connect them in series in order to reach the voltage you require.

Connecting batteries in series means connecting the (+) terminal of the first battery to the (-) terminal of the next battery. Each battery you connect in series increases the voltage of the battery bank.

Here are a few examples:

Two 12V batteries connected in series, the total voltage is 24V

Four 12V batteries connected in series, the total voltage is 48V

Four 6V batteries connected in series, the total voltage is 24V

What voltage should I run my system?

The voltage of your panel must be higher than the voltage of your battery bank. This is because most charge controllers are only able to step down the voltage from the panels to match the battery, and they can’t step it up.

  • Small panels (100W, 150W) are usually rated at 12V or 18V so in this case you would require a 12V battery bank.
  • Larger panels are often rated 24V or 30V (such as the 250W ) and in this case you will do better with a 24V battery bank.
  • If you are installing several panels you can connect them in a string in order to achieve a higher voltage. Larger systems are best designed to run at 24V or 48V.

Advanced setup: connecting batteries in series and parallel

Suppose you have four 12V batteries but you want to put together a 24V battery bank. You could connect a pair of batteries in series, and then another pair of batteries in parallel.

I and also my guys appeared to be taking note of the good tactics located on the website and so unexpectedly I had a horrible suspicion I had not expressed respect to the website owner for those techniques. The ladies ended up as a result glad to learn them and now have extremely been taking advantage of them. I appreciate you for simply being indeed accommodating and for using certain beneficial themes millions of individuals are really desperate to discover. My honest apologies for not expressing gratitude to you earlier.

12 months ago

I wanted to send a brief word to say thanks to you for some of the wonderful techniques you are placing on this website. My incredibly long internet look up has at the end been honored with professional concept to go over with my visitors. I ‘d state that that most of us website visitors are undeniably blessed to dwell in a superb place with very many special professionals with valuable ideas. I feel very grateful to have discovered the website page and look forward to some more fun times reading here. Thanks again for a lot of things.

12 months ago

There are definitely plenty of details like that to take into consideration. That could be a great point to deliver up. I supply the thoughts above as normal inspiration however clearly there are questions like the one you carry up where the most important factor will be working in honest good faith. I don?t know if best practices have emerged around issues like that, however I am sure that your job is clearly identified as a good game. Each girls and boys really feel the impact of just a second抯 pleasure, for the remainder of their lives.

12 months ago

I’m also commenting to make you understand of the extraordinary experience our girl developed reading the blog. She noticed some issues, not to mention what it’s like to possess an ideal helping mood to let many people smoothly gain knowledge of chosen advanced issues. You undoubtedly surpassed visitors’ expected results. I appreciate you for displaying the great, healthy, informative and even fun tips about that topic to Ethel.

12 months ago

Thank you a lot for giving everyone an extremely remarkable chance to read in detail from this web site. It’s usually so excellent and also full of a great time for me personally and my office friends to visit your website a minimum of 3 times weekly to study the newest secrets you have got. And definitely, I’m at all times satisfied concerning the incredible strategies you serve. Certain two tips on this page are indeed the most impressive we have all ever had.

12 months ago

An interesting dialogue is price comment. I believe that you must write more on this subject, it won’t be a taboo topic however typically people are not sufficient to speak on such topics. To the next. Cheers

12 months ago

I’m also commenting to let you understand what a incredible encounter my cousin’s princess found visiting your site. She noticed a lot of issues, not to mention what it’s like to have a wonderful giving style to let the rest quite simply grasp a number of problematic subject matter. You really surpassed my expected results. Thank you for rendering the informative, trustworthy, explanatory and also cool tips on that topic to Lizeth.

12 months ago

Thanks a lot for providing individuals with an extraordinarily special opportunity to read from this blog. It’s always so pleasurable plus jam-packed with a good time for me personally and my office co-workers to search your website at the least thrice in one week to read through the latest items you have. And of course, we are at all times satisfied with your effective concepts you give. Selected 1 ideas in this article are clearly the best we have all ever had.

11 months ago

I have to show my passion for your generosity supporting individuals that have the need for assistance with this important subject matter. Your personal commitment to getting the message all through appeared to be extraordinarily advantageous and has in most cases made workers like me to reach their endeavors. Your own valuable guidelines implies a great deal to me and even further to my mates. With thanks; from everyone of us.

11 months ago

I have to voice my love for your generosity for people that really need help with that area. Your very own commitment to getting the solution throughout ended up being particularly interesting and has always allowed guys just like me to attain their targets. Your personal warm and helpful key points indicates so much to me and substantially more to my fellow workers. Regards; from everyone of us.

11 months ago

Thank you for all of the hard work on this blog. My aunt enjoys doing internet research and it is obvious why. We notice all relating to the dynamic form you create powerful guides by means of your blog and as well strongly encourage contribution from others on this article then my girl is in fact being taught a lot of things. Take pleasure in the rest of the year. You are always doing a tremendous job.

11 months ago

I simply desired to thank you very much again. I am not sure the things that I might have done without the entire hints contributed by you over this question. It actually was a troublesome circumstance in my opinion, but encountering the very specialised strategy you managed the issue made me to jump with delight. Now i am thankful for this guidance and in addition trust you recognize what an amazing job that you’re undertaking educating others all through your blog post. More than likely you’ve never met any of us.

11 months ago

I wish to express some thanks to the writer just for bailing me out of this type of crisis. After searching throughout the the net and meeting opinions which were not beneficial, I thought my entire life was gone. Existing without the presence of strategies to the issues you have resolved through your short post is a crucial case, as well as the kind which might have adversely damaged my career if I had not discovered the blog. Your personal capability and kindness in taking care of a lot of stuff was precious. I don’t know what I would have done if I hadn’t come across such a step like this. I can now look forward to my future. Thanks very much for the specialized and result oriented help. I will not be reluctant to propose your blog post to anybody who should have guide on this area.

11 months ago

I am commenting to make you understand of the fine encounter our child developed visiting your site. She even learned such a lot of pieces, most notably what it is like to possess an excellent coaching nature to let certain people without difficulty fully understand some tortuous things. You really surpassed visitors’ expectations. Thanks for presenting those productive, trusted, edifying and in addition easy tips about your topic to Evelyn.

11 months ago

I’m just writing to make you be aware of what a great discovery my girl obtained visiting your webblog. She noticed too many issues, which included what it’s like to possess a very effective teaching spirit to have the mediocre ones with ease comprehend a variety of advanced things. You truly exceeded my desires. I appreciate you for imparting such useful, healthy, edifying not to mention unique tips about your topic to Gloria.

11 months ago

I have to express my affection for your generosity for folks that really need help with this idea. Your real commitment to passing the solution all around was surprisingly practical and has specifically enabled guys like me to get to their targets. The informative publication denotes much a person like me and even further to my office colleagues. Best wishes; from all of us.

11 months ago

My spouse and i ended up being thankful that Emmanuel managed to finish off his research from your precious recommendations he obtained using your web page. It is now and again perplexing to just continually be releasing tips and hints some people have been trying to sell. We really understand we have you to appreciate for that. The main illustrations you have made, the straightforward site menu, the relationships you can aid to promote – it is all terrific, and it is leading our son in addition to the family reckon that this content is entertaining, and that is extremely fundamental. Thank you for everything!

11 months ago

I simply wanted to type a simple comment in order to say thanks to you for some of the amazing ways you are sharing at this website. My rather long internet investigation has at the end been rewarded with really good facts and strategies to write about with my visitors. I ‘d tell you that we website visitors are really blessed to exist in a great site with very many awesome individuals with helpful suggestions. I feel really blessed to have encountered your entire webpage and look forward to really more fun moments reading here. Thank you again for all the details.

11 months ago

I needed to create you that very little observation to help thank you yet again about the beautiful guidelines you’ve discussed in this case. It was extremely generous with you to convey unreservedly just what a lot of people might have supplied as an ebook to get some profit on their own, precisely now that you might well have done it in the event you considered necessary. Those tricks also acted to be a good way to recognize that other individuals have a similar interest like my personal own to realize very much more with respect to this problem. I think there are lots of more pleasant moments in the future for individuals who examine your blog post.

11 months ago

I am just writing to make you understand what a exceptional encounter our daughter obtained using your blog. She mastered many issues, which include what it’s like to possess an ideal teaching character to make the rest clearly fully grasp various hard to do topics. You actually surpassed my expectations. Thank you for offering these informative, safe, revealing and unique guidance on your topic to Mary.

11 months ago

Thank you for every one of your work on this web page. Kim take interest in getting into investigations and it’s simple to grasp why. I learn all concerning the dynamic medium you make effective suggestions by means of your web site and therefore strongly encourage response from visitors about this matter so my girl is always studying a great deal. Have fun with the remaining portion of the new year. You’re performing a pretty cool job.

11 months ago

My wife and i were joyous that Michael could carry out his survey from the precious recommendations he was given out of the web page. It is now and again perplexing to simply choose to be giving freely points which usually others might have been making money from. So we take into account we now have the website owner to appreciate for that. The specific explanations you have made, the simple website navigation, the relationships you can make it easier to foster – it is many superb, and it’s really making our son in addition to the family feel that the topic is thrilling, which is particularly indispensable. Thank you for the whole thing!

11 months ago

I and my friends ended up analyzing the nice thoughts located on the blog and so unexpectedly came up with an awful suspicion I never thanked the website owner for those tips. These ladies became absolutely joyful to see them and now have in reality been loving them. Appreciate your actually being so kind and also for having these kinds of smart subjects most people are really needing to understand about. My very own honest apologies for not expressing appreciation to you sooner.

11 months ago

My husband and i felt so delighted that John managed to carry out his basic research while using the precious recommendations he was given out of the web site. It is now and again perplexing just to happen to be giving out procedures which often people today have been trying to sell. And we all recognize we have got the website owner to be grateful to for that. Most of the illustrations you made, the easy web site menu, the relationships your site help to promote – it is all extraordinary, and it’s really making our son and us feel that that situation is entertaining, which is certainly unbelievably fundamental. Thank you for the whole lot!

11 months ago

I and my buddies were examining the nice key points on your web page while unexpectedly developed a terrible feeling I never thanked you for those tips. My ladies are already as a consequence joyful to see them and already have actually been making the most of them. Thanks for being considerably helpful and also for deciding upon this sort of perfect resources millions of individuals are really eager to learn about. My very own honest apologies for not expressing appreciation to you earlier.

11 months ago

I am also commenting to make you know of the outstanding encounter my friend’s princess found checking your webblog. She noticed plenty of details, with the inclusion of what it’s like to have a very effective giving heart to let certain people with ease understand specified tricky issues. You actually did more than her expectations. I appreciate you for supplying those valuable, trustworthy, revealing and in addition easy guidance on the topic to Tanya.

11 months ago

I would like to show my appreciation to the writer for bailing me out of this type of instance. Just after researching through the the net and obtaining advice which were not powerful, I believed my entire life was well over. Living devoid of the strategies to the issues you have solved by way of the guide is a critical case, as well as the kind that would have negatively damaged my career if I hadn’t discovered the website. Your own personal ability and kindness in touching all the details was invaluable. I am not sure what I would have done if I had not encountered such a step like this. I’m able to at this time look forward to my future. Thanks so much for the professional and results-oriented help. I will not think twice to propose your web page to any individual who will need care on this topic.

11 months ago

I wanted to put you a very small note so as to say thanks a lot once again for all the awesome tricks you have provided here. This is so wonderfully generous of you to grant easily just what most of us could have supplied as an e book to end up making some bucks for their own end, primarily considering the fact that you could have done it if you ever considered necessary. Those points as well served to provide a good way to be certain that other people have similar zeal like my own to know great deal more on the subject of this issue. I’m certain there are lots of more enjoyable periods ahead for folks who go through your blog post.

11 months ago

I simply needed to appreciate you again. I’m not certain the things that I would have accomplished without the actual points shared by you concerning that theme. It was a very depressing crisis for me personally, nevertheless seeing a new specialized fashion you processed the issue made me to jump for gladness. I am happier for this assistance and then expect you are aware of an amazing job you are always getting into teaching most people by way of your webpage. Most likely you haven’t encountered any of us.

11 months ago

liveremingtonplace, kinarapower,
[url=http://www.liardrivercommunicationsgroup.com/]liardrivercommunicationsgroup[/url]

10 months ago

Review How to connect your batteries to make up a 24V or 48V solar system.

Your email address will not be published. Required fields are marked *

Otieno Christopher

Otieno Christopher has been in the solar industry since 2008. He’s been a Technician, sales rep, an instructor, and an all around solar evangelist, sharing his passion for solar around the world. When not at work, He’s either dancing or hiking, depending on the season, but odds are good he’s still talking about solar in the dance floor or on the slopes.

Click to Call us.