By far the best video on how to put the Seplos V3 together. All the other videos, including Seplos themselves, rush over the most complex bit, which is the wiring! And the documentation is shambolic when it comes to working out what goes where. I just put mine together in around 3 hours, and would have been 3 days if it wasn't for your video! Huge thanks and I really hope that Seplos link to this in their videos.
I'm happy the video helped you out Jonny. I noticed the same lack of simple assembly instructions, so I put these videos together for people like you and me, who just want to know where to connect this and that and get it working. Seplos thanked me in one of my other videos and suggested and implied an interest in me showcasing their products. I have some interesting ideas for them and would love to build more of their products and showcase them, but they haven't followed up since. I enjoy building and sharing stuff that cuts the learning curve for others. I hope my other videos are just as helpful to you. Well done on completing the build!
This Video is a great help to the lack of Seplos manuals and installation instructions. I got my installation confirmed and powered it on without any problems. Thank you. Regards from germany
Hi Gary I m assembly same battery as you, they give me 2 sets of active balance cable, all mark as B 😢 and in 1 set they have B0 black. I don't have any clue where it go ! One more question, most of wire go to positive stud of battery cell?
Hi. The trick with the balance cables is to look at the length. One set is longer than the other and the longer set of course will go to the set of cells furthest from the connections, which is the "B" set of cells, which are 9-16. Each wire has a label which also tells you where they need to go. All wires on the balance cable go to the positive terminals with the exception of the 2 extra wires which go to negative 1 and negative 9. So, yes, most wires connect to the positive terminals. The temperature sensors connect to the negative terminals, as does the Active Balancer negative power wire. Good Luck with the build
I have yet to make that video. Unfortunately my PC died on me recently and I lost some data. You may need to use an altered RJ45 utilising pin 1,2 and 5. See my responses to @banhvo4958 for more info. Using any old lan cable could cause damage to the BMS. The settings you will want to change are: Settings - Baud rate 19200 and access COM 5 Parameter settings: Line 89 and 90 (capacity) 305Ah Line 102 (Voltage) I set to 56V, as the standard 57.6 was too high for my liking. I think that is all I changed. If you see Ah setting at 290Ah, change those to 305Ah if your capacity is 305Ah.
You will need to replicate some of these setting on your inverter if the batteries and inverter are to work in harmony. See my inverter settings video for help on this.
@GaryMeatsFood I have make a new cable with pin 1,2 and 5 and now I can connect to the bms ... but now when I set AoBo protocol on invertor there is an Alarm as batname fail. If i set on user define is no alarm
@@VladBYT If AoBo gives alarm, or battery fail warning, then user define is OK to use. You will need to change some settings on the inverter, especially the floating voltage and equalisation voltage. I set mine to 57V and 56.7V respectively.
@@VladBYT Also the reason why you have battery fail alarm is most likely because the battery protocol setting on the BMS has not been set. I believe it needs to be plyontech in the software if you are to use AoBo on the inverter. However, user define is perfectly fine.
Hi Gary Just finished, turn battery on,amber and green light on and ----WARN----Y check it out: CAPA---WARN. Please help,what can I fix this. Thank you
This is an easy fix, don't panic. You have a capacity warning because your cell capacity is 305Ah and your settings on the BMS are set to 290Ah. Once you change this in the BMS Studio, the warning will disappear. But I stress, it's not a warning you need to be concerned about. I haven't made a BMS Studio video yet, but if you need help, let me know. You will need to connect with a special RJ45 and change a couple of settings. Look at post #2 in this forum below. It was the info that moved me forward. Also check out post #11 for the parameters you should change. Read the whole thread and make sure you select the baud rate of 19200 when making the connection. This rate will also need to be changed on your inverter. If you have a solis inverter, my other video covers that. diysolarforum.com/threads/seplos-v3-bms-no-port-com-connection.85837/#post-1131983
@@banhvo4958 You need a USB to RS485 Converter for Modbus. Here is the one I used www.amazon.co.uk/dp/B078X5H8H7?psc=1&ref=ppx_yo2ov_dt_b_product_details You can cut one end off any internet (LAN) cable and connect pins 1,2 and 5 to connection B, A and GND in that order. This will let you connect the battery to your computer, selecting PORT 5 and the correct baud rate when making the connection. What is pin 1 you might ask? Look at the back of the LAN cable (the bit with no tab) and you will see pin 1 is the left wire. Pin 1 is Orange & White. Pin 2 is Orange. Pin 5 is Blue and White. A successful connection will give you a red power light and a flashing RXD light. Change Parameter line 89 and 90 to 305Ah. Change Parameter line 91 to 100Ah. Change Parameter line 102 to 56V. These are the main settings I recall changing on mine. Disclaimer: This is what worked for me. Follow any instructions at your own risk.
Built mine, but have an issue where the power switch doesn't turn it off. It's always on regardless of the position of the power switch. I've tested the switch and cable, all looking ok.
How have you tested the switch and cable? If the switch and cable are OK, then you have either connected to the wrong seat, or there is a board fault. Does it power up without the switch connected?
Hello. Thanks for this very helpful vidieo. I'm just finishing the montage. It's strange tha the displau-y stay always on independentlu of the main power switch position. It also indicate 0 voltage after the welcom screen. I look tree time if evrething is properly wire... and i d'ont fine any mistake. If somebody have helpful idea ?
@@GaryMeatsLife . Thanks, it's the same proposition of Seplos support. After the operation i have the LCD display showing the riht information. Only it's not possible shutdown the battery. The power switch is ok, the Run Led show when ON or OFF, but the display stay always ON. Thats the answer of Seplos support : This may be because the power module of the BMS has broken down. The unstable external output voltage has caused the power module to break down, but it does not affect the use. It's just that the battery cannot be shut down. If you need to shutdown, you need to disconnect the battery.
@@Yesterday679OK. I would personally leave it, because you won’t be doing much powering down of the unit and only the LCD is drawing power when off. Of course, it could be replaced if you wanted to.
4 місяці тому
Active Balancer signal from BMS happens when "Cell Diff" Alert is triggered. So, modify settings at BMS Studio so cell diff trigger is the same than Active Balancer setting for start balancing. According to Active Balance documentation is 40mV but by default is set much higher. Don't know why Seplos did it.
I believe cell drift is set to 50mV and should bring cells to within 3mV after active balancing. It’s good habit to hit the balance button on a monthly basis when the battery is topped up.
4 місяці тому
@@GaryMeatsLife30mV only. From this point is passive balancer task, unfortunately.
Hi from Australia, I have same inverter, using jk inverter BMS, I have a problem with state of charge, after few months of charging discharging cycles, SOC drifts, JK BMS shows 100% after each charge cycle but voltage is lowered in each cycle (in realty it is 70 to 80%). After 7 or 8 cycles, despite showing 100% the battery is 2 or 3 kWh lower in capacity. When 100% SOC, if I change the capacity in BMS settings and change it to the same value, the SOC drops to 60 or 70% and then Solis inverter starts charging for another 2 or 3 kWh. The shift in SOC by Jk BMS is becoming pain, please advise if anyone has any suggestions to fix this issue.
I am by no means an expert, but it sounds like your cells are out of balance. The BMS will show 100% when the first cell reaches 100%. If this cell is out of balance by an average of 10% to the other cells, then the actual state of charge would be around 90%. To the end user, it looks like the capacity is drifting, when in fact the BMS is just protecting the cell which has the highest voltage. If you balance the cells, this should make the lost capacity available to you again....for a while, but it will drift again. You could balance them every 4-6 months, or as often as you like. A passive balancer won't do a proper job with cells far out of balance. You need an active balancer, or you can do a manual top balance.
Подскажите пожалуйста,такая ситуация, подключил на + 16 ячейки с платы балансира провод и кнопка свич начала мирцать но до етого светилась стабильно и также есть ошыбка (capa warn) Y..
The blue balance button flickers when it is activated. When in rest mode, it will glow. The capacity warning is most likely related to the BMS settings. You need to edit your capacity from 290Ah to 305Ah. Publish these changes to the battery. If you do not know how to use the BMS Studio, I will be doing a video on this soon. I am building anew battery this weekend. I needed to build a new PC before doing this.
@@ВиталийМорозов-м5п I assume you have assembled the battery yourself. When you turn the battery on using the rocker switch, the balance light should be solid blue. It should only blink when you press it. Pressing the button is a method to activate manual balancing for the purpose of testing that it works, or to balance the cells when the battery is at full charge. You will need to confirm the Ah capacity of your battery. Your battery will have 16 cells in it. Each cell will have the Ah capacity. This is the capacity you will need to enter into the BMS Studio when you connect the battery to your PC or Laptop. The default capacity on my BMS was 290Ah. When I first turned the battery on, I also got a capacity alarm. This alarm disappeared when I changed the Ah Capacity to 305Ah. It is possible your capacity is also 305Ah. Many cells are sold or advertised as 280Ah, but are actually 305Ah. Check one of you battery cells, or just change to 305Ah on the BMS studio. Have a look at this thread for help with BMS Studio and the correct settings listed in post #11 diysolarforum.com/threads/seplos-v3-bms-no-port-com-connection.85837/#post-1131303
Don't leave the fast balancer on all the time. It will try to balance from 100% to 0% and seriously mess up your balance. Only balance say once a month when battery is as full as it can be and it shouldn't take long at 4A to balance the pack. Leaving it on will mess things up.
Seplos could learn a lot from this video, it’s excellent
I have personally used it twice to make sure I was making the right connections. Maybe Seplos will reach out to me 🎉
By far the best video on how to put the Seplos V3 together. All the other videos, including Seplos themselves, rush over the most complex bit, which is the wiring! And the documentation is shambolic when it comes to working out what goes where. I just put mine together in around 3 hours, and would have been 3 days if it wasn't for your video! Huge thanks and I really hope that Seplos link to this in their videos.
I'm happy the video helped you out Jonny. I noticed the same lack of simple assembly instructions, so I put these videos together for people like you and me, who just want to know where to connect this and that and get it working. Seplos thanked me in one of my other videos and suggested and implied an interest in me showcasing their products. I have some interesting ideas for them and would love to build more of their products and showcase them, but they haven't followed up since. I enjoy building and sharing stuff that cuts the learning curve for others. I hope my other videos are just as helpful to you. Well done on completing the build!
Great video, couldn't have assembled mine without your truly superb guide. Thank you
You're very welcome. The other videos will take you through the rest. Like and subscribe for more.
This Video is a great help to the lack of Seplos manuals and installation instructions. I got my installation confirmed and powered it on without any problems.
Thank you.
Regards from germany
Gern Geschehen
Perfect video, clear an simple, thank you from France
You did a better job than Seplos ever did Sir...
You are the best of all seplos videos at least for beginners like me,thank you so much, save me a lot of headache and frustration.
That was my intention. Happy to help buddy!
This is great. I am expecting the V3 seplos DIY kit with active balancer. The video simplifies the connection process
Дякую тобі чоловіче!
Дуже вчасне та детальне відео. Мені дуже допомогло в підключенні Seplos 3.0.
Вітання з України!
Excellent just what I needed. Thanks
Thanks for the video. Did you need to top balance the cells before assembling the kit?
Cells were well enough balanced, bar one. I just fully charged and let the balancer do the job after that.
Hi Gary
I m assembly same battery as you, they give me 2 sets of active balance cable, all mark as B 😢 and in 1 set they have B0 black. I don't have any clue where it go !
One more question, most of wire go to positive stud of battery cell?
Hi. The trick with the balance cables is to look at the length. One set is longer than the other and the longer set of course will go to the set of cells furthest from the connections, which is the "B" set of cells, which are 9-16.
Each wire has a label which also tells you where they need to go. All wires on the balance cable go to the positive terminals with the exception of the 2 extra wires which go to negative 1 and negative 9. So, yes, most wires connect to the positive terminals. The temperature sensors connect to the negative terminals, as does the Active Balancer negative power wire.
Good Luck with the build
I got 2 times b9-b16 ;) haha and now I am waiting the seller ship me correct one
so it seems to be common that they are not taking care to send correct ones with the box
Hi Gary, I have a question, do you know how I can limit the battery charge to 10A? Which setting should I change? Thank you !!!
This will be in your inverter settings.
hello Gary! nice and good video .. do you have a video with the setting on the BMS studio?
I have yet to make that video. Unfortunately my PC died on me recently and I lost some data.
You may need to use an altered RJ45 utilising pin 1,2 and 5. See my responses to @banhvo4958 for more info. Using any old lan cable could cause damage to the BMS.
The settings you will want to change are:
Settings - Baud rate 19200 and access COM 5
Parameter settings:
Line 89 and 90 (capacity) 305Ah
Line 102 (Voltage) I set to 56V, as the standard 57.6 was too high for my liking.
I think that is all I changed. If you see Ah setting at 290Ah, change those to 305Ah if your capacity is 305Ah.
You will need to replicate some of these setting on your inverter if the batteries and inverter are to work in harmony. See my inverter settings video for help on this.
@GaryMeatsFood I have make a new cable with pin 1,2 and 5 and now I can connect to the bms ... but now when I set AoBo protocol on invertor there is an Alarm as batname fail. If i set on user define is no alarm
@@VladBYT If AoBo gives alarm, or battery fail warning, then user define is OK to use. You will need to change some settings on the inverter, especially the floating voltage and equalisation voltage. I set mine to 57V and 56.7V respectively.
@@VladBYT Also the reason why you have battery fail alarm is most likely because the battery protocol setting on the BMS has not been set. I believe it needs to be plyontech in the software if you are to use AoBo on the inverter. However, user define is perfectly fine.
Tomorrow I will see Best Regards
Hi Gary
Just finished, turn battery on,amber and green light
on and
----WARN----Y
check it out:
CAPA---WARN.
Please help,what can I fix this. Thank you
This is an easy fix, don't panic. You have a capacity warning because your cell capacity is 305Ah and your settings on the BMS are set to 290Ah. Once you change this in the BMS Studio, the warning will disappear. But I stress, it's not a warning you need to be concerned about.
I haven't made a BMS Studio video yet, but if you need help, let me know. You will need to connect with a special RJ45 and change a couple of settings.
Look at post #2 in this forum below. It was the info that moved me forward. Also check out post #11 for the parameters you should change. Read the whole thread and make sure you select the baud rate of 19200 when making the connection. This rate will also need to be changed on your inverter. If you have a solis inverter, my other video covers that.
diysolarforum.com/threads/seplos-v3-bms-no-port-com-connection.85837/#post-1131983
Thank you
Please give me a link to that special rj45.thanks a lot!
@@banhvo4958 You need a USB to RS485 Converter for Modbus. Here is the one I used www.amazon.co.uk/dp/B078X5H8H7?psc=1&ref=ppx_yo2ov_dt_b_product_details
You can cut one end off any internet (LAN) cable and connect pins 1,2 and 5 to connection B, A and GND in that order. This will let you connect the battery to your computer, selecting PORT 5 and the correct baud rate when making the connection.
What is pin 1 you might ask? Look at the back of the LAN cable (the bit with no tab) and you will see pin 1 is the left wire. Pin 1 is Orange & White. Pin 2 is Orange. Pin 5 is Blue and White.
A successful connection will give you a red power light and a flashing RXD light.
Change Parameter line 89 and 90 to 305Ah.
Change Parameter line 91 to 100Ah.
Change Parameter line 102 to 56V.
These are the main settings I recall changing on mine.
Disclaimer: This is what worked for me. Follow any instructions at your own risk.
Thank you Gary!
Built mine, but have an issue where the power switch doesn't turn it off. It's always on regardless of the position of the power switch.
I've tested the switch and cable, all looking ok.
How have you tested the switch and cable? If the switch and cable are OK, then you have either connected to the wrong seat, or there is a board fault. Does it power up without the switch connected?
Hello, where is the connection error on the battery that caused cell 16 to be offset? I have the same problem on a battery. Thank you
Take a look at your cell 1 and 16 connections. You may have a wire out of place.
Thank you @@GaryMeatsLife
Is it normal when balancer button always blinking?
No. If it has not turned off after a couple of hours by itself, then it it is likely you have not connected it into the right seat.
Hi Gary, how could i connect with you because i have some questions.
If you have an account on the DIY Solar forum, you can link with me there, or drop your email in the comments temporarily here and I’ll reach out.
Hello. Thanks for this very helpful vidieo. I'm just finishing the montage. It's strange tha the displau-y stay always on independentlu of the main power switch position. It also indicate 0 voltage after the welcom screen. I look tree time if evrething is properly wire... and i d'ont fine any mistake. If somebody have helpful idea ?
Remove the wires again. Take a break. And start again. A mistake was made somewhere.
@@GaryMeatsLife . Thanks, it's the same proposition of Seplos support. After the operation i have the LCD display showing the riht information. Only it's not possible shutdown the battery. The power switch is ok, the Run Led show when ON or OFF, but the display stay always ON. Thats the answer of Seplos support : This may be because the power module of the BMS has broken down. The unstable external output voltage has caused the power module to break down, but it does not affect the use. It's just that the battery cannot be shut down. If you need to shutdown, you need to disconnect the battery.
@@Yesterday679OK. I would personally leave it, because you won’t be doing much powering down of the unit and only the LCD is drawing power when off. Of course, it could be replaced if you wanted to.
Active Balancer signal from BMS happens when "Cell Diff" Alert is triggered. So, modify settings at BMS Studio so cell diff trigger is the same than Active Balancer setting for start balancing. According to Active Balance documentation is 40mV but by default is set much higher. Don't know why Seplos did it.
I believe cell drift is set to 50mV and should bring cells to within 3mV after active balancing. It’s good habit to hit the balance button on a monthly basis when the battery is topped up.
@@GaryMeatsLife30mV only. From this point is passive balancer task, unfortunately.
Hi from Australia, I have same inverter, using jk inverter BMS, I have a problem with state of charge, after few months of charging discharging cycles, SOC drifts, JK BMS shows 100% after each charge cycle but voltage is lowered in each cycle (in realty it is 70 to 80%). After 7 or 8 cycles, despite showing 100% the battery is 2 or 3 kWh lower in capacity. When 100% SOC, if I change the capacity in BMS settings and change it to the same value, the SOC drops to 60 or 70% and then Solis inverter starts charging for another 2 or 3 kWh. The shift in SOC by Jk BMS is becoming pain, please advise if anyone has any suggestions to fix this issue.
I am by no means an expert, but it sounds like your cells are out of balance. The BMS will show 100% when the first cell reaches 100%. If this cell is out of balance by an average of 10% to the other cells, then the actual state of charge would be around 90%. To the end user, it looks like the capacity is drifting, when in fact the BMS is just protecting the cell which has the highest voltage. If you balance the cells, this should make the lost capacity available to you again....for a while, but it will drift again. You could balance them every 4-6 months, or as often as you like.
A passive balancer won't do a proper job with cells far out of balance. You need an active balancer, or you can do a manual top balance.
do you have any Messenger to contact you to reset the video show more
I'm afraid not. I'm not a Seplos rep, so wouldn't be in a position to advise you beyond the scope of the video.
Добрый день, можете дать ссылку на приложение Seplos studio?
Подскажите пожалуйста,такая ситуация, подключил на + 16 ячейки с платы балансира провод и кнопка свич начала мирцать но до етого светилась стабильно и также есть ошыбка (capa warn) Y..
The blue balance button flickers when it is activated. When in rest mode, it will glow.
The capacity warning is most likely related to the BMS settings. You need to edit your capacity from 290Ah to 305Ah. Publish these changes to the battery. If you do not know how to use the BMS Studio, I will be doing a video on this soon. I am building anew battery this weekend. I needed to build a new PC before doing this.
У меня 280ач, и ещё при в ключении батареи срабатывают реле на плате планировки и через пару минут отключаются ето нормально?
@@ВиталийМорозов-м5п I assume you have assembled the battery yourself. When you turn the battery on using the rocker switch, the balance light should be solid blue. It should only blink when you press it. Pressing the button is a method to activate manual balancing for the purpose of testing that it works, or to balance the cells when the battery is at full charge.
You will need to confirm the Ah capacity of your battery. Your battery will have 16 cells in it. Each cell will have the Ah capacity. This is the capacity you will need to enter into the BMS Studio when you connect the battery to your PC or Laptop. The default capacity on my BMS was 290Ah. When I first turned the battery on, I also got a capacity alarm. This alarm disappeared when I changed the Ah Capacity to 305Ah. It is possible your capacity is also 305Ah. Many cells are sold or advertised as 280Ah, but are actually 305Ah. Check one of you battery cells, or just change to 305Ah on the BMS studio.
Have a look at this thread for help with BMS Studio and the correct settings listed in post #11
diysolarforum.com/threads/seplos-v3-bms-no-port-com-connection.85837/#post-1131303
@@GaryMeatsLife спасибо
Don't leave the fast balancer on all the time. It will try to balance from 100% to 0% and seriously mess up your balance. Only balance say once a month when battery is as full as it can be and it shouldn't take long at 4A to balance the pack. Leaving it on will mess things up.
The balancer has to be manually turned on. It can't be left on all the time. I haven't touched it since a few days after connecting it.
Добрый день