October 9, 20223 yr Hello, I'm the new one here, I've had an IMEON 3.6 inverter for 1 year, which I'm running with 4 x 2.4 Kwh Imeon 4850 batteries. In addition, I use the retrofit system from Imeon to use the power of an older Growatt TL3-X 7000. Anything I can't use myself, I send to the power grid. That works really well, but since the ecological madness is in the government in Europe, especially here in Germany, and the instinct for self-preservation is no longer there, power shortages and very high inflation are the daily bread. I wanted to buy another 2-4 batteries of 2.4 Kwh each from Imeon in France, but the price more than doubled in 6 months. Now I want to build my own battery bank and hope that maybe someone here has experience with it. Specially with Imeon Inverter. I ordered 16 Lifepo 4 280 Ah batteries in China and also ordered a Mason DIY kit from Seplos. Seplos usually makes BMS systems and there you can set everything that is important to charge/discharge and maintain the batteries. What I have found out so far, you need an additional active balancer to keep the cell voltage the same for all 16 cells. Imeon himself is very reluctant to build batteries himself and would of course like to sell his own. Seplos states that the Imeon Inverter is compatible, but I would like to have more access to the important settings on the inverter. When installing the Imeon Inverter there are 2 passwords which are as follows: User password allows access to a simplified interface Email: user@local Password: password Installer profile allows access to an interface with some additional parameters Email: installer@local Password: Installer_P4SS I'll post the links to the products below so that anyone who's interested knows what I'm talking about As already mentioned, charging and discharging with the small Inverter 3.6 works really well, since it also steps in during the day and supplies the consumers with electricity when it rains in between or a few clouds disturb the solar yield. Imeon works with a Linux system, in which it starts the apps to tell the inverter what to do. Since several apps are running at the same time, there can be interference between the individual apps where the support from the French could be improved. Especially if you don't speak French and there's only a French woman on the phone who speaks your native language and that's it. It just takes time via email and is also not perfect. Can someone send me the password for deeper settings? Is probably one with the daily date at the end. like Growatt20221009 for the TX3-7000. but I don't know exactly for Imeon Does anyone here have more experience with my problem? Of course I could have just bought 4 more battery racks, but the price for 4 pcs including shipping and tax is around $6-6,500 for a total capacity of 200Ah. For self-construction with the 16S BMS system and the 280Ah 3.2 V batteries including the Mason Kit where everything is included, I can get there with the freight from China and tax for $3000. So 80Ah more and only half to pay. Money doesn't grow on trees for me either. I would appreciate a reply, maybe we can help each other. Greetings from near the F1 Gandprix Nürburgring/Germany Bernd https://www.seplos.com/sale-21924968-mason-diy-unit-suitable-eve-280ah-cell-box-stack-type-without-cells.html https://www.seplos.com/sale-13707067-canbus-24-48v-8s-16s-200a-lithium-iron-phosphate-battery-smart-monitoring-management-system.html https://de.aliexpress.com/item/1005002716957286.html https://qiso.en.alibaba.com/de_DE/minisiteentrance.html?spm=a2700.details.cordpanyb.2.5c9f4652yPpgsl&from=detail&productId=1600389627965
October 10, 20223 yr Hello bernd! I have been looking at doing a DIY battery too, there are not many on the forum here. Some guys on here might be able to help with the seplos BMS experience. I am disappointed you need to use an external balancer. From my research the market in SA is flooded with over the counter batteries which compete with a DIY option. Ordering batteries from alibaba is pretty risky in SA. I need to build a 24V battery and cannot find any suitable options on the market.
October 10, 20223 yr 3 minutes ago, -=sT3V3=- said: Hello bernd! I have been looking at doing a DIY battery too, there are not many on the forum here. Some guys on here might be able to help with the seplos BMS experience. I am disappointed you need to use an external balancer. From my research the market in SA is flooded with over the counter batteries which compete with a DIY option. Ordering batteries from alibaba is pretty risky in SA. I need to build a 24V battery and cannot find any suitable options on the market. Andy from Off-Grid Garage uses this supplier and he raves about them. $/R bit crappy at them moment so the prices seem crazy. lifepo4 batteries legit seller As for BMS for DIY, get these they are awesome. I have ordered 2 one already arrived and working great Best BMS for DIY Batteries
October 10, 20223 yr 19 minutes ago, WannabeSolarSparky said: Andy from Off-Grid Garage uses this supplier and he raves about them. $/R bit crappy at them moment so the prices seem crazy. lifepo4 batteries legit seller As for BMS for DIY, get these they are awesome. I have ordered 2 one already arrived and working great Best BMS for DIY Batteries Thanks for the reply I will take a look
October 11, 20223 yr Author 22 hours ago, -=sT3V3=- said: Hello bernd! I have been looking at doing a DIY battery too, there are not many on the forum here. Some guys on here might be able to help with the seplos BMS experience. I am disappointed you need to use an external balancer. From my research the market in SA is flooded with over the counter batteries which compete with a DIY option. Ordering batteries from alibaba is pretty risky in SA. I need to build a 24V battery and cannot find any suitable options on the market. Hello =sT3V3= you don't necessarily need an additional balancer, but the balancer built into the BMS only works with 150mA. In my opinion, this is not enough for the memory size, so I bought an additional balancer to be able to balance the cells better. And the $50 the balancer costs is disproportionate to the overall investment. I hope you find what you need for your 24V system. The risk of buying from China shops has been limited here in Europe if you follow a few safety rules. LG from Germany
October 16, 20223 yr On 2022/10/10 at 1:23 PM, -=sT3V3=- said: Hello bernd! I have been looking at doing a DIY battery too, there are not many on the forum here. Some guys on here might be able to help with the seplos BMS experience. I am disappointed you need to use an external balancer. From my research the market in SA is flooded with over the counter batteries which compete with a DIY option. Ordering batteries from alibaba is pretty risky in SA. I need to build a 24V battery and cannot find any suitable options on the market. I built a 10kWh DIY battery in December 2021 with locally bought 100Ah cells together with a JBD BMS (250mA balancing), compression rods and wooden box. I have SMA Sunny Island (2013 model) inverter and did not need comms between inverter and BMS as I am used to using voltage settings. Up to now the cell imbalance was never more than 40mV and usually below 15mV. I used the Bluetooth App of BMS to monitor the cells as and when required. After this positive DIY experience, I bought EVE LF280K cells via Alibaba and also some Seplos Mason 280 DIY boxes. I installed my first box a month ago and up to now found the cell balancing very good (below 10mV imbalance). Planning on building a few more. I posted some pictures and also modifications here of my first Mason 280 DIY battery build. I was so impressed with the Seplos BMS, that I upgraded the first DIY battery to use the same BMS. See attached photos. My son is busy designing enclosure to 3D print for the BMS together with the LCD. Edited October 16, 20223 yr by DeonBez
November 3, 20223 yr On 2022/10/16 at 9:20 PM, DeonBez said: I was so impressed with the Seplos BMS, that I upgraded the first DIY battery to use the same BMS. See attached photos. My son is busy designing enclosure to 3D print for the BMS together with the LCD. The 3D design for the Seplos BMS is complete and available at https://www.thingiverse.com/thing:5604549 For more information see here
November 9, 20223 yr Author On 2022/11/03 at 8:45 PM, DeonBez said: The 3D design for the Seplos BMS is complete and available at https://www.thingiverse.com/thing:5604549 For more information see here Hello DeonBez, the Box for the Seplos is so great, i love it. I use the IMEON Inverter and they (the support) dont talk or answere Emails. So i am at my own. After Fedex delivered the Seplos i start to build a battery to take a look if it´s works. I also ordered the Mason Box and will be here in end November maybe. So i start testing and write to seplos support. The write that the Imeon Inverter works well. But they are friedly and write every night at 2 am and i answer at 8 am. They want that i use the Dyness profil, but it did not work, so i test every profil. With Pylontech the discharge work well, but the charge use only 5 Ah. So i tested more and read the profil from WECO Battery 5K3. Perfect profil and work fine in charge and discharge. If anyone use Imeon and will build a DIY Battery with Seplos BMS via CAN connection use the WECO Profil. You have to put the Ground from pin 8 to Pin 3 from Seplos BMS and The CAN H and CAN L at 4 and 5 is ok from Imeon Inverter. Hope anybody can use the info, I have download the Print file for Seplos BMS Have fun and if it doesn't work try again the next day and it will work in a day
November 14, 20223 yr On 2022/10/09 at 4:48 PM, freierMensch said: Hello, I'm the new one here, I've had an IMEON 3.6 inverter for 1 year, which I'm running with 4 x 2.4 Kwh Imeon 4850 batteries. In addition, I use the retrofit system from Imeon to use the power of an older Growatt TL3-X 7000. Anything I can't use myself, I send to the power grid. That works really well, but since the ecological madness is in the government in Europe, especially here in Germany, and the instinct for self-preservation is no longer there, power shortages and very high inflation are the daily bread. I wanted to buy another 2-4 batteries of 2.4 Kwh each from Imeon in France, but the price more than doubled in 6 months. Now I want to build my own battery bank and hope that maybe someone here has experience with it. Specially with Imeon Inverter. I ordered 16 Lifepo 4 280 Ah batteries in China and also ordered a Mason DIY kit from Seplos. Seplos usually makes BMS systems and there you can set everything that is important to charge/discharge and maintain the batteries. What I have found out so far, you need an additional active balancer to keep the cell voltage the same for all 16 cells. Imeon himself is very reluctant to build batteries himself and would of course like to sell his own. Seplos states that the Imeon Inverter is compatible, but I would like to have more access to the important settings on the inverter. When installing the Imeon Inverter there are 2 passwords which are as follows: User password allows access to a simplified interface Email: user@local Password: password Installer profile allows access to an interface with some additional parameters Email: installer@local Password: Installer_P4SS I'll post the links to the products below so that anyone who's interested knows what I'm talking about As already mentioned, charging and discharging with the small Inverter 3.6 works really well, since it also steps in during the day and supplies the consumers with electricity when it rains in between or a few clouds disturb the solar yield. Imeon works with a Linux system, in which it starts the apps to tell the inverter what to do. Since several apps are running at the same time, there can be interference between the individual apps where the support from the French could be improved. Especially if you don't speak French and there's only a French woman on the phone who speaks your native language and that's it. It just takes time via email and is also not perfect. Can someone send me the password for deeper settings? Is probably one with the daily date at the end. like Growatt20221009 for the TX3-7000. but I don't know exactly for Imeon Does anyone here have more experience with my problem? Of course I could have just bought 4 more battery racks, but the price for 4 pcs including shipping and tax is around $6-6,500 for a total capacity of 200Ah. For self-construction with the 16S BMS system and the 280Ah 3.2 V batteries including the Mason Kit where everything is included, I can get there with the freight from China and tax for $3000. So 80Ah more and only half to pay. Money doesn't grow on trees for me either. I would appreciate a reply, maybe we can help each other. Greetings from near the F1 Gandprix Nürburgring/Germany Bernd https://www.seplos.com/sale-21924968-mason-diy-unit-suitable-eve-280ah-cell-box-stack-type-without-cells.html https://www.seplos.com/sale-13707067-canbus-24-48v-8s-16s-200a-lithium-iron-phosphate-battery-smart-monitoring-management-system.html https://de.aliexpress.com/item/1005002716957286.html https://qiso.en.alibaba.com/de_DE/minisiteentrance.html?spm=a2700.details.cordpanyb.2.5c9f4652yPpgsl&from=detail&productId=1600389627965 @freierMensch Good day to you, I have a LBSA 5.1 KW/H 100 AH battery that is equipped with a Seplos BMS, it works very well but I have a big problem is that it counts one cycle every time the SOC drops by 20% I believe this parameter can be changed, do you know how to do it? and what is the username and password? Thanking you in advance.
November 14, 20223 yr On 2022/10/09 at 4:48 PM, freierMensch said: Hello, I'm the new one here, I've had an IMEON 3.6 inverter for 1 year, which I'm running with 4 x 2.4 Kwh Imeon 4850 batteries. In addition, I use the retrofit system from Imeon to use the power of an older Growatt TL3-X 7000. Anything I can't use myself, I send to the power grid. That works really well, but since the ecological madness is in the government in Europe, especially here in Germany, and the instinct for self-preservation is no longer there, power shortages and very high inflation are the daily bread. I wanted to buy another 2-4 batteries of 2.4 Kwh each from Imeon in France, but the price more than doubled in 6 months. Now I want to build my own battery bank and hope that maybe someone here has experience with it. Specially with Imeon Inverter. I ordered 16 Lifepo 4 280 Ah batteries in China and also ordered a Mason DIY kit from Seplos. Seplos usually makes BMS systems and there you can set everything that is important to charge/discharge and maintain the batteries. What I have found out so far, you need an additional active balancer to keep the cell voltage the same for all 16 cells. Imeon himself is very reluctant to build batteries himself and would of course like to sell his own. Seplos states that the Imeon Inverter is compatible, but I would like to have more access to the important settings on the inverter. When installing the Imeon Inverter there are 2 passwords which are as follows: User password allows access to a simplified interface Email: user@local Password: password Installer profile allows access to an interface with some additional parameters Email: installer@local Password: Installer_P4SS I'll post the links to the products below so that anyone who's interested knows what I'm talking about As already mentioned, charging and discharging with the small Inverter 3.6 works really well, since it also steps in during the day and supplies the consumers with electricity when it rains in between or a few clouds disturb the solar yield. Imeon works with a Linux system, in which it starts the apps to tell the inverter what to do. Since several apps are running at the same time, there can be interference between the individual apps where the support from the French could be improved. Especially if you don't speak French and there's only a French woman on the phone who speaks your native language and that's it. It just takes time via email and is also not perfect. Can someone send me the password for deeper settings? Is probably one with the daily date at the end. like Growatt20221009 for the TX3-7000. but I don't know exactly for Imeon Does anyone here have more experience with my problem? Of course I could have just bought 4 more battery racks, but the price for 4 pcs including shipping and tax is around $6-6,500 for a total capacity of 200Ah. For self-construction with the 16S BMS system and the 280Ah 3.2 V batteries including the Mason Kit where everything is included, I can get there with the freight from China and tax for $3000. So 80Ah more and only half to pay. Money doesn't grow on trees for me either. I would appreciate a reply, maybe we can help each other. Greetings from near the F1 Gandprix Nürburgring/Germany Bernd https://www.seplos.com/sale-21924968-mason-diy-unit-suitable-eve-280ah-cell-box-stack-type-without-cells.html https://www.seplos.com/sale-13707067-canbus-24-48v-8s-16s-200a-lithium-iron-phosphate-battery-smart-monitoring-management-system.html https://de.aliexpress.com/item/1005002716957286.html https://qiso.en.alibaba.com/de_DE/minisiteentrance.html?spm=a2700.details.cordpanyb.2.5c9f4652yPpgsl&from=detail&productId=1600389627965 Bernd, I got the following from Imeon directly in order to log into deeper settings Username - installer.pro@local Password - PRO_Installer_P4SS Hope it helps you. Regards
November 14, 20223 yr Author 2 hours ago, Antonio de Sa said: @freierMensch Good day to you, I have a LBSA 5.1 KW/H 100 AH battery that is equipped with a Seplos BMS, it works very well but I have a big problem is that it counts one cycle every time the SOC drops by 20% I believe this parameter can be changed, do you know how to do it? and what is the username and password? Thanking you in advance. If you have a seplos BMS you can use Battery Monitor from seplos, if you are connected you can change many options. Look at the link: https://drive.google.com/drive/folders/10pxgNLHovcDZRVGrCZsSkfecBrRw-AdW there you can read in PDF for your BMS. If you have a 100Ah BMS with Can o 485, you find all there. password is Admin and key also Admin You find all options in Upload parameter. I hope it helps If not, ask seplos, they are very friendly. Regards
November 14, 20223 yr 13 minutes ago, freierMensch said: If you have a seplos BMS you can use Battery Monitor from seplos, if you are connected you can change many options. Look at the link: https://drive.google.com/drive/folders/10pxgNLHovcDZRVGrCZsSkfecBrRw-AdW there you can read in PDF for your BMS. If you have a 100Ah BMS with Can o 485, you find all there. password is Admin and key also Admin You find all options in Upload parameter. I hope it helps If not, ask seplos, they are very friendly. Regards Thanks for the info, as you can see from my dashboard my battery only once as gone to 20% SOC this all week, yet it counted 7 cycles. So the count setting must be set at 20% as default from the factory. Many thanks I will try change that specific parameter.
November 14, 20223 yr On 2022/10/10 at 1:23 PM, -=sT3V3=- said: Hello bernd! I have been looking at doing a DIY battery too, there are not many on the forum here. Some guys on here might be able to help with the seplos BMS experience. I am disappointed you need to use an external balancer. From my research the market in SA is flooded with over the counter batteries which compete with a DIY option. Ordering batteries from alibaba is pretty risky in SA. I need to build a 24V battery and cannot find any suitable options on the market. Hi guys. forgive my ignorance - I am curious about why you would want to build your own battery? Is it possibly to make a real saving in cost? Or is it just because electrical stuff is a hobby for you? Amazed! Patrick.
November 14, 20223 yr 9 minutes ago, Patrick OReilly said: Hi guys. forgive my ignorance - I am curious about why you would want to build your own battery? Is it possibly to make a real saving in cost? Or is it just because electrical stuff is a hobby for you? Amazed! Patrick. @Patrick OReilly Seplos BMS as far I'm concerned is an excellent BMS you do not need an external balancer, it does that by itself, once cells reach 3,5 C starts to balance. I get all info from my BMS and one can clearly see it does that. See dashboard. My battery has a problem cell it does not get to full voltage.
November 14, 20223 yr Author 35 minutes ago, Patrick OReilly said: Hi guys. forgive my ignorance - I am curious about why you would want to build your own battery? Is it possibly to make a real saving in cost? Or is it just because electrical stuff is a hobby for you? Amazed! Patrick. It is both Patrick, it is like a hobby and i save a lot of money. If you build your own 280Ah Battery with 48 V you are less than 2.700$, if you buy a case also you have 3000$ for a lot of power, make a double and you have enought. (28kWh /6000$€) If something went wrong, you can fix it, because you built it and know how it work. Also you are more sensible by using power, here in Europa nothing is normal anymore, no more culture and respect. All crazy here. We will become a energy problem here if the green party and klimachange stupid is not over in a few month. The price for Energy rises and is double in one year, so thinks change fast . I like to be my own master and not say to the govement, please help me. The only they do is to rob you more . But it is also ok to buy a battery from company and have no problems if you use them normal. (80 % cost, 20 % hobby)
November 14, 20223 yr 4 hours ago, freierMensch said: If you have a seplos BMS you can use Battery Monitor from seplos, if you are connected you can change many options. Look at the link: https://drive.google.com/drive/folders/10pxgNLHovcDZRVGrCZsSkfecBrRw-AdW there you can read in PDF for your BMS. If you have a 100Ah BMS with Can o 485, you find all there. password is Admin and key also Admin You find all options in Upload parameter. I hope it helps If not, ask seplos, they are very friendly. Regards Mine is doing the same Counts one cycle even with only 16 % used How do you change the settings? If I just keep it like this would it negatively affect the batteries? I know it would appear much older/ used just because of the high cycle count
November 15, 20223 yr @Antonio de Sa I vaguely recall that the cycle count is set so that if it goes down past 20% DoD (80%SoC), it will count a cycle when it starts charging again. I also remember something about an extra cycle being counted if you go past 80% DoD. I would not really worry about the cycle count per se, I look at total kWh out and divide that by 80% of the capacity.
November 15, 20223 yr 12 minutes ago, P1000 said: @Antonio de Sa I vaguely recall that the cycle count is set so that if it goes down past 20% DoD (80%SoC), it will count a cycle when it starts charging again. I also remember something about an extra cycle being counted if you go past 80% DoD. I would not really worry about the cycle count per se, I look at total kWh out and divide that by 80% of the capacity. @P1000 You are correct, that is exactly how my system behaves. Presently with just over 1 year of use my battery supplied 1,148 MW/H of power, (see Dashboard) it has counted 862 cycles. You say I should not worry too much about the cycle, OK it just looking at the cycle count it looks like this battery is much older.
November 16, 20223 yr Mine is doing the same - Count a cycle for every discharge LBSA not giving me a proper answer or a solution ? Not sure if i will be able to get into the BMS and correct the settings and itf it will affect my warrenty? Thanks
November 16, 20223 yr 3 hours ago, PietSkiet said: Mine is doing the same - Count a cycle for every discharge LBSA not giving me a proper answer or a solution ? Not sure if i will be able to get into the BMS and correct the settings and itf it will affect my warrenty? Thanks @PietSkiet To be honest with you, my opinion of LBSA technical personnel is that they are really not that good, I would add "clueless" at least the person that I spoke to. it looks like that he knows absolutely nothing about its own product. I've been monitoring my battery for over a year now, since I started, I can clearly see that there is a bad cell in the pack. Contacted then they told me to bring the battery over and they will fix it. Now the question is, with the state of continuous daily load shedding I cannot afford to be without a battery for a few days, I have no choice but to run it like that. Now regarding the cycle count it can be fixed using the Seplos software, but if I was you, I would contact LBSA and ask for permission to do it, or better ask then to do it for you, that's presuming they know how to do it.... may affect the warranty. Edited November 16, 20223 yr by Antonio de Sa
November 16, 20223 yr Author On 2022/11/14 at 5:45 PM, PietSkiet said: Mine is doing the same Counts one cycle even with only 16 % used How do you change the settings? If I just keep it like this would it negatively affect the batteries? I know it would appear much older/ used just because of the high cycle count Maybee you should take a look at seplos BMS menue Point 81 maybe, test it or ask seplos Good luck, if it not work today, use the night to think about and look tomorrow again, and again and again. One day it will work. Greatings
November 16, 20223 yr Author 4 hours ago, Antonio de Sa said: @PietSkiet To be honest with you, my opinion of LBSA technical personnel is that they are really not that good, I would add "clueless" at least the person that I spoke to. it looks like that he knows absolutely nothing about its own product. I've been monitoring my battery for over a year now, since I started, I can clearly see that there is a bad cell in the pack. Contacted then they told me to bring the battery over and they will fix it. Now the question is, with the state of continuous daily load shedding I cannot afford to be without a battery for a few days, I have no choice but to run it like that. Now regarding the cycle count it can be fixed using the Seplos software, but if I was you, I would contact LBSA and ask for permission to do it, or better ask then to do it for you, that's presuming they know how to do it.... may affect the warranty. If you make a DIY Battery project, than buy 20 Cells if you need 16, what happend in 5 years if one cell is damage, where to get one of this speci cells in 5 years? So you can make a 12 Volt car battery or for campng with the 4 cells. You taje the best for your project and the other is reserve. Than you have no problem. Regards
November 17, 20223 yr On 2022/11/14 at 4:18 PM, freierMensch said: It is both Patrick, it is like a hobby and i save a lot of money. If you build your own 280Ah Battery with 48 V you are less than 2.700$, if you buy a case also you have 3000$ for a lot of power, make a double and you have enought. (28kWh /6000$€) If something went wrong, you can fix it, because you built it and know how it work. Also you are more sensible by using power, here in Europa nothing is normal anymore, no more culture and respect. All crazy here. We will become a energy problem here if the green party and klimachange stupid is not over in a few month. The price for Energy rises and is double in one year, so thinks change fast . I like to be my own master and not say to the govement, please help me. The only they do is to rob you more . But it is also ok to buy a battery from company and have no problems if you use them normal. (80 % cost, 20 % hobby) Thanks @freierMensch Very interesting, and also a good cost saving. Maybe one day I'll try something similar...
November 17, 20223 yr Hello @freierMensch, As stated by someone else above, I am also using the following : installer.pro@local PRO_Installer_P4SS By the way, I see that you have a retrofit smart meter with your Imeon 3.6 ? Could you tell me the settings of this additionnal Smart Meter ? the meter ID, the speed, the parity Cause I am not able to make mine work 😞 Thanks in advance and best regards. S@m Edited November 18, 20223 yr by SamSavageSpeed
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