RV Solar Battery Upgrade
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- Опубліковано 4 лют 2024
- Battery Upgrade from 12 volts to 48 volts.
The link below is the 12 volt installation
• RV Solar System 2000 Watt
If you would like to contact me with any questions. Please feel free at the link below
fulltime_rvlife@yahoo.com
Check out the following channel they have some awesome videos
youtube.com/@writersinastorm?... - Наука та технологія
Very nice physical representation of the difference between a 12-volt and a 48 volt system. The efficiencies are just so much greater. Good job.
We have only been running it a few days. But yes, what a difference it is from the 12 volt system.
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We love watching your videos so much information from a knowledgeable person!
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Please take some time and check out this channel. They have some awesome videos: youtube.com/@writersinastorm?si=APno_SAtX5PfgbaA
Nice upgrade!
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Nice job. I’m installing three of the same batteries and the 18k in my rig right now. A week after I got the 18k the 6000’s came out. I had to find a bit more ingenuity in my install because it is so much bigger. Almost done. I can see these 6000’s being the new standard on solar installs vs. the victron.
Originally, I was going to install the 6500. But by the time I got around to ordering, they discontinued it. That's how we ended up with the 6000XP.
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Cool Info. The only thing holding me back from the EG4 6000XP that I can see is that it requires at least 100vDC on the solar side. I was hoping it would as low as around 44 to 48 volts. It can accept 48v on the DC battery side, so I don't quite get why they cannot design it to accept 48v on the solar side too.
If you have 3 panels @ 44 volts. Connected in series would be 132 volts. This is 22 volts more than the required 100 +/- 10 volts. We have 2 strings, one at 330 volts and the other at 177 volts.
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The 6000XP is also not UL-458 safety listed for use in an RV.
@@kickgas7171That is good to know. Thank you.
How did you avoid powering the converter from the inverter ? Also, did you use welding cable for cable flexibility?
The converter is plugged into the 120VAC and charges the 12 volt motorhome batteries. The inverter is powered by the 48 volt batteries. The inverter powers the 120VAC. The two battery banks are separate from one another.
As for the cables, the battery manufacturer recommended 1 AWG. I however used 2 AWG and crimped on the needed connectors cut to length.
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@igowhereimtowed6839 is your converter powered by the inverter ? If yes, then your inverter is backfiring the twin batteries which is not good.
@VideoByPatrick The converter batteries do not power the inverter. Some people will use one group of batteries to power their system. I use to different groups of batteries. That way, I have not created a loop or backfeed. Two separate battery groups for two separate systems.
@igowhereimtowed6839 many thanks.....
im going to follow your 48 volt path soon, is it possible to reuse those 12 volt batteries in series to make a 48 volt battery to add to your system?with out the communication aspect
You could just not sure how well they would be utilized by the inverter. In terms of charging and discharging.
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Are you going to sell any of your Outback Flex 80amp charge controllers?
Yes, all of the 12 volt equipment is for sale.
What is the approximate cost of the 48 amp upgrade?
The cost for our 48-volt upgrade was $4650.00. Biggest change has been the efficiency. Do we think it was worth the expense? Definitely, yes.
Looks like a really excellent upgrade. Another EG4 6000XP success story it looks like! Very nice, gives you two AC legs on the output, split-phase, and 240VAC, and has all the circuit breakers you need built-in. You went with 16s 51.2V nominal EG4 LL's, those are excellent batteries (also with built-in breakers). You have some redundancy with two of them in parallel. And you have BMS comms connected up.
I'm not entirely sure about standing the EG4 LL's up on their ends. Usually the prismatic cells inside have over-pressure vents on the top which can wind up exhausting electrolyte instead of gas if the batteries are stood up like that and a failure happens. Maybe verify with the manufacturer whether that is ok or not.
Since you have only one 6000XP connected up you might want to consider wiring a separate 3000W inverter to the battery that you can use in case of emergency if the 6000XP konks out. Something like that can also be quite useful wired to a kitchen outlet with a remote switch to allow additional heavy appliances in the kitchen to be used concurrently. Though of course the 6000XP itself has a lot of capability. Be sure to split any other heavy 120VAC loads evenly between the 6000XP's L1 and L2.
As well as keep some of your independent MPPT charge controllers hooked up to the battery (if not already, assuming they can handle a 48V battery system)... again "just in case" the 6000XP konks out.
I think you are going to be really happy with that build. There is going to be a massive reduction in heat and power losses with that setup, and a huge improvement in power delivery.
-Matt
Per the battery manual, standing them on the end is acceptable.
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That is some excellent advice.
The high frequency 6000XP is not designed for use in mobile applications because it's not UL-458 listed. And because it lacks and output transformer, there is no galvanic isolation between its DC boost stage and its AC output which makes this inverter less safe when compared to a low frequency, transformer based inverter charger.
Hey there,if those 12V bateries are lifpo4 too,why u dont use 4 of them in series than paralel it to the 48v ones? same chemistry same voltage would it be,more capacity!
One 12 volt 100ah battery is 1.25 Kwh. One 48 volt 100ah battery is 5.1 Kwh. The 2 - 48 volt batteries have the same capacity of just over 8 - 12 volt 100ah batteries.
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Yes its a good analogy,but i am afraid you aint getting me,i am saying,4 of thise bateries can be added to the 48v bateries you have,Add to it for even more capacity,4 in series,gonna be also 5 kilowats,than paralel them to the new bateries…if same chemistry…
@83kaszas while putting 4 - 12 volt batteries in series, increases the voltage. It does not also increase the amp hours. Search batteries in series for a complete explanation of series and parallel.
Yes but you increase the voltage! To the same level as the 2 server rack bateries you aquired,so it will be a 48v batery with 100 amper hours,right? Now tie that bank to the 2 server rack and you have 15kw instead of 10
I know everything about batteries,we did like that before and it works just fine,only the wire lengths has to be equal,so they share discharge currents equally
Nice choice for batteries but a crappy, even dangerous choice for an inverter. First of all , that cheap Chinese made high frequency inverter is not UL-458 safety listed for mobile applications like an RV. Second, high frequency inverters offer a very poor surge capacity and a very short life expectancy when compared to heavy duty low frequency transformer based inverters.
Enjoyed the information but as a veteran it made me sick to see you walking on the Stars and Stripes.
Andrew, words can not describe the appreciation we for your service to our country.
Yes, our ground matt has stars and stripes. It is not thee Stars and Stripes of our country.
Unlike some people, when I look at the flag of our country. I do not just see Stars and Stripes. I see the men and women who have fought and in some cases, died. So that my family and I can live in freedom.
I see people like yourself who have secured the privilege. For us to live a lifestyle, we have chosen.
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@@igowhereimtowed6839
Hey, I go where I am towed!
Excellent response to the above comment! As a veteran of the US Army myself, your point is well taken. As you said, it is not the actual Stars and Stripes!
I also would like to say it looks good that you have a reminder for all of us, especially in these crazy times. Stars and Stripes forever, my friend. Keep up the good work!
@writersinastorm Thank you for your service to our nation. I know if it were not for our veterans. We would not have the rights and privileges we do. To all our veterans from my family and myself. Thank you again, God Bless You and your family.