MPP Solar Inverter... watts247.com/product/lv6548-6-5kw-120v-solar-inverter-4kw-250v-mppt-bms-ul1741-built-in-wifi/?wpam_id=97 (affiliate links) EG4 6548EX Inverter... signaturesolar.com/eg4-6-5k-off-grid-inverter-6500ex-48/?ref=lithiumsolar THANK YOU to everyone whom helped with ideas and suggestions both here and on the forum.
it might not be that a bad thing you did not hear from the MPP mob. i know of two instances were they threatened youtubers with legal action that had problem with their gear. (in the early days the software was really faulty, at a cloud edge event it cooked batteries.) i know of people that rewrote the software so as to make it compatible with lithium batteries. people in the tropics modded the cooling system so it didn't constantly overheat. etc etc
What is the cable you use from laptop to the inverter rj connector for flashing the firmware? I am using a windows laptop with usb ports but no rs232. Thanks
1:29 AHAHAHA that was me who blew on the PCB to cool it off. Your reaction to how immensely stupid that is was hilarious, I couldn't stop laughing for a solid minute. Glad you got yours working too though! Edit: And just for context, you have to understand that I had spent 10s of hours across over a week period standing in my basement trying to get the communication working with this unit. After thinking I had bricked my unit and not really having a working unit for a few days or even anyone willing to support this product, once it started flashing I was too afraid to stop and put a fan on it or something. It was finally making progress for the first time in days so I just kept going. I was very lightheaded at the end of the flash. But it was worth it and I would absolutely do it over again because other people have used that information to fix their units as well. I'm just glad that as a community we managed to troubleshoot and fix a problem when the manufacturer wouldn't. The solar community is absolutely amazing.
Fantastic story - I was a software engineer from 1984 till 2018 and installed / setup many many pieces of equipment and never ever heard anything like this!! so interesting and it had a good ending. Made my day and you got a good result :) This is one for the anals like entering G800 (something close to that) on boot of early floppy-disk-based DOS to access the low level disk format. Thank you for sharing!
Bravo on the perseverance man! Sets a good example as too many people these days have underdeveloped resilience and go thru life continuously giving up too soon.
Good troubleshooting, Im still waiting for my 2 EG4. I have reviewed all your comments and there are some smart people out there. I still have reservations on signature solar as I have been waiting over a month for the inverters. We are going to order some more panels but not sure of signature solar is the best place to get them. I look forward to your next video.
My husband is outside trying to clear the 61 error. I’m so frustrated with the whole solar thing altogether. We struggled with Growatt for 8 months. Swapped to EG4. And here we are still no solar.
If you buy the EG4 you can only get spares and support from SS, as they have a tweaked product. Locked in. The vanilla LV6548 can be paralleled with the same from almost any local or international supplier
I work in IT and never heard of having to cool the electronics to such a low temp to get it to take a firmware update, but there are many things in IT that require you to 'jump through similar hoops' to get them to work, so I'm not at all surprised. BTW, your story of using bigger fans reminded me of an IT issue I consulted on where a company had issues with a hard drive crashing and actually took it out of the case and ran a fan on it 24x7, the problem was that the room where they stored the computer, drive and fan was warm, so essentially no matter how much fan speed they used, pushing warm air across something a little warmer isn't going to do that much. I suspect this was the case for you... fan speed was good, but what it needed was a bigger temp difference. Glad you got it to work in the end.
I'm betting it's the baud rate driver for the serial connection, the baud clock frequency is probably slightly out of spec. Chilling it probably changes the capacitance which puts the clocks back in spec.
Its most likely the eeprom itself. Flashing those memories generate a lot of heat (depending on technology its using a laser or a UV light to erase the memory, and that can heat up the chip). But i never heard of it overheating, max I have seen was around 40-50*C, way lower than 90*C most electronics will start having issues at.
@@hubertnnn I doubt there's an EEPROM for firmware on that board. EEPROM's are largely redundant for most applications, the application will be on flash memory, probably flash ROM on the microcontroller.
The EG4 6548EX converters apparently have a higher idle power draw (about 110W) than the LV6548 (70W). The LV6548V is also high. I particularly care about this during the winter months.
I would have tried a continous squirt from a Freezing Spray Can. But first I would have tried a few judicious squirts around the board to try and locate which section is the critical one. Thanks.
I'm guessing, but I've seen this before. There is a possibility that there some micro cracks on the soldering on the pcb. I know you have the new firmware now installed, but it should would have been fun to try some freeze spray on various parts on the pcb to see what would happen.
Me either. Closest I've seen is flashing raid controllers outside of a server, but typically just put a fan on them and they're good to go - never seen anything as ridiculous as this.
I worked in consumer electronics for a long time. It's probably a clock issue in the design (outside chance it's also about power supply smoothness). In order to get it to write, it seems you need to drop it to sub-ambient which will change the value of some of the components which allows it to start writing. Added airflow from a PC fan will just lower it to ambient temperature at a minimum, if your ambient is low enough then it might work and a compressor will output chilled air due to the way the air expands as it comes out of the compressor. But if you are in a relatively warm room already and use a fan, the device doesn't go sub-ambient (skin is more easily cooled by fans because it convects the humidity from our skin). I remember working on a Pace Set-top box which wouldn't start up reliably because the oscillator capacitance was out of tune. Given the device is being updated via serial, there's a good chance that the oscillator that drives the baud rate is out of spec.
I have worked in IT for many years. Many electronics such as mobile phones, laptops, desktops, servers, routers have a heat shutoff. If they get too hot they power off to protect damage to the components. Remember if it is like 80 degrees where you are standing, inside a computer case it will be from 10-30 degrees hotter. The components generate their own heat, especially CPUs when they are being put to heavy loads.
@@LithiumSolar that’s great news. Technically it makes sense I guess. They just added their eg4 Battery protocol to what was already there on the lv6548.
I have an EG4 6500EX-48 and it is having the same Error 61 issue and Sig Solar has not been able to help with this. I have mine connected to 4x SK48v100's and here is a direct quote from Sig Solar email: "I cant speak to other models we do not carry or offer support for but the EG4 unit at this time will not communicate with those batteries EG4 has been doing testing but as I stated at this time they will not communicate and there is no firmware fix for our unit to gain that functionality at this time."
Two rather important questions I hope you can help us with: First, if I have 5 48v server rack batteries with communications connected, and one BMS detects a fault, will it take the entire rack offline or just the one battery? Second, in an off grid system, will the BMS autoreconnect or be able to be reset without external power? Thanks! These questions are from guys who put a ton of power on sailboats.
Hey a quick question when you get time, I really like those PYTES 48v batteries that Watts 7/24 has, they are a little more than Signature solar, What I don't find about those batteries is the efficiency rating like S. Solar shows for there's.....Almost no reviews on them, any way could you do a tear down on it? I do like the quick connection for the wiring , no need for risk of overtightening the bolts. Also, they have a 6000 cycle compared to the EG4 7000 cycles. Your thoughts?
Hi....! Hope you are doing well. Do you remember I think Ina 2 years old video li-ion battery pack 4s6p using 21700 cells...... Please guide me if I want to build same like this a 4s 6p 21700 battery pack will be it is suitable for laptop power bank..? I have HP ProBook 430 g2 laptop which requires 14.8v and approximate 2A Please reply I'm waiting for your kind guidance. Regards: M.Zubair
Entirely depends on the cells you choose by mostly yes. 16.8volts to 14.8V only brings you down to 3.70V per cell…quite a bit of capacity is left. The easy solution is to use a buck boost converter to have a regulated output voltage when your cells are above and below the laptop power supply voltage. The LTC3780 has been popular because it is 10A but you could get away with a smaller unit or just don’t use one and give up all that extra capacity when the 4S pack gets too low
I'm sure they use some common SPI flash chip which can be programmed with a cheap USB flasher. The next time if you have some experience with electronics you can unsolder the flash chip and flash it using the appropriate adapter or do it on the PCB by using a SOIC/SOP clip. The advantage of this method is that you don't need the board to be powered so no temperature concerns.
Thank you for sharing follow up with a solution. By any chance after successfully updating, did you try again flashing another firmware without cooling? (To rule out if there is thermal protection somehow or hardware problem) I think you don't have but also would be interesting ti see both boards under thermal camera while flashing to see if there is actual temperature difference between different boards. If the hardware is problem could it mean that you possibly as for newer version one using the guarantee? Nevertheless thank you for the tip and video.
Man that’s ridiculous what you had to go through. I’m not sure if the EG4 variant is the answer either. They all come out of the same factory and I’m pretty sure any software updates originate from there. A lot of companies loose interest in a completed model and constraint everything on the next project. I hope Voltronic isn’t one of those. So far this doesn’t give me that fuzzy warm feeling that if something goes south in a few years that it’ll have support/parts. Victron, Sol-ark and Schneider seem to have support and parts. Really have my eyes wide open.
Software might be different, and since it has issues with overheating during flashing, possibly slowing down the flashing process could solve the issue.
Thanks for sharing all of these technical details but I'm a bit unclear on a couple of the fine points.... So, are both of your LV's now running firmware 112.19? If so, was there also difficulty flashing the older unit (the one you purchased in January). The last thing you mentioned was that unit was running 12.13. Also, is the Error 61 resolution due to the U2 display firmware update or the the U1 inverter fw update (you have both on 45.07??) I recall that your 2P2 unit was successfully communicating with 45.07 & 12.13?
Great video, I have a F90 error code and hopefully will never see the error 61 code but I thought you might know of a solution to fix the F90 error on my SP6548 sun power gold inverter 48 volt 6500 watt i just bought a few weeks ago. F90 is in NONE of the documentation on their website or Axpert or voltronic website so I am hoping you have had some experience as the LV6548 is the exact same product as the SP6548 inverter I bought 6 weeks ago, has yours given the F90 code out yet? If so how did you fix it? I found some info online that the F90 code is a code that identifies a counterfeit firmware so I thought I would message you to see if you might know a way to fix this, the sunpowergold reviews are pretty scary so I thought I would ask you guys - appreciate any help and love your videos guys keep up the awesome videos
I would think it's a problem with resistance/voltage drop. Cold temps = less resistance and less drop. When programming these chips require a specific voltage. If it changes at all it'll fail. Heating can cause it to have more voltage drop due to increased resistance.
Might want to try a better inverter. If you are interested in a grid-tied inverter, which removes the cost of batteries, check out the Fronius Primo, 3.8 - 10kW. Comes standard with a 10 year warranty. Designed and built im Austria,, with support via phone here in USA, by native English speaking staff.
I don't know that I'd say that necessarily. I have quite a few of their products and they're always rock solid. I've never had one fail. The support though... that seems to be the problem.
I would not say on purpose. Flashing outside of circuit is easy, flashing in circuit can have some weird side effects, since most memories require you to put 12V or more to a 5V rail (usually the reset pin) to switch to flashing mode. That 12V can cause some weird side effects with the rest of the device if not planned correctly. Though in this case it feels to me its the speed of flashing that's the issue. Eeproms get hot when flashing, and it might be possible to reach dangerous (disconnect) temperatures if flashed too fast, though I never have seen this kind of issue myself.
by all respect: Taiwan is not China and our contact and sales adress is always Taiwan, not China They had been wuite helpfull here in a grid tie scenario where we use dozens of the MPI 5K or 5.5K cause their support had been quite efficient and fast with spare parts / boards at least in Europe. The only negative point is their fooling strategy to offer european customers the same product and service for totally crazy prices. You can get their inverters from their ebay stores in italy for 1200€ and in germany from their german account for 1800€. They use domestic ebay accounts but all with references to Taiwan. Sometimes they claimed to have a european warehouse but that changed over time or they had no inventory due to high demand since Russians invasion in the Ukraine.
Yet another proof that LOW PRICE does not equal best value. I would gladly pay $3,200 for a Conext XW Pro. Fortunately that isn't necessary yet, the XW+ is still working perfectly.
ok on the real. i am thinking the bios you had may be something on the level of a sensor level reading that said 100. but the bios said 10.0 is to hot but it was ment for 100.0
I promise no saliva, as stupid of a solution as it was I was trying to be careful because saliva + electronics would not end well. I think it worked easier for me because I was already in a cool basement, so it may not have needed as much cooling as someone in a warmer climate or outside
What could be going on at MPP to not answer your emails? I mean you are an influencer, what chance would one of us nondescripts have if a problem arose? And a problem will arise - could be 3 months or 3 years - it will arise, so really what MPP is saying to us is - You buy this inverter know that it will terminally fail.
Its more like: Don't expect any warranty, you get what you get. I have seen this kind of behaviors many times, especially since where I live law is just a theory, so you cannot even enforce a warranty on companies that offer it.
These oem inverters all come from voltronic and have good hardware but their software and firmware is buggy and awquart . I can't understand how they can not provide simple support with firmware on their website. It's infuriating, yet we all keep buying from them.
Wow! At my age I could never go through all that without losing my temper and probably smashing the inverter on the floor! Victron firmware updates are seamless and I have never had one go bad. I’ve already done close to a dozen of them as they send them quite frequently. It’s worth the extra cost for my peace of mind. 🫣🖖
Hi....! Hope you are doing well. Do you remember I think Ina 2 years old video li-ion battery pack 4s6p using 21700 cells...... Please guide me if I want to build same like this a 4s 6p 21700 battery pack will be it is suitable for laptop power bank..? I have HP ProBook 430 g2 laptop which requires 14.8v and approximate 2A Please reply I'm waiting for your kind guidance. Regards: M.Zubair
MPP Solar Inverter... watts247.com/product/lv6548-6-5kw-120v-solar-inverter-4kw-250v-mppt-bms-ul1741-built-in-wifi/?wpam_id=97 (affiliate links)
EG4 6548EX Inverter... signaturesolar.com/eg4-6-5k-off-grid-inverter-6500ex-48/?ref=lithiumsolar
THANK YOU to everyone whom helped with ideas and suggestions both here and on the forum.
@roberto lang There are links to the forum post and Watts247's site in the video description. Both locations have the 112.19 firmware file.
it might not be that a bad thing you did not hear from the MPP mob. i know of two instances were they threatened youtubers with legal action that had problem with their gear.
(in the early days the software was really faulty, at a cloud edge event it cooked batteries.)
i know of people that rewrote the software so as to make it compatible with lithium batteries.
people in the tropics modded the cooling system so it didn't constantly overheat.
etc etc
What is the cable you use from laptop to the inverter rj connector for flashing the firmware? I am using a windows laptop with usb ports but no rs232. Thanks
1:29 AHAHAHA that was me who blew on the PCB to cool it off. Your reaction to how immensely stupid that is was hilarious, I couldn't stop laughing for a solid minute. Glad you got yours working too though!
Edit: And just for context, you have to understand that I had spent 10s of hours across over a week period standing in my basement trying to get the communication working with this unit. After thinking I had bricked my unit and not really having a working unit for a few days or even anyone willing to support this product, once it started flashing I was too afraid to stop and put a fan on it or something. It was finally making progress for the first time in days so I just kept going. I was very lightheaded at the end of the flash. But it was worth it and I would absolutely do it over again because other people have used that information to fix their units as well. I'm just glad that as a community we managed to troubleshoot and fix a problem when the manufacturer wouldn't. The solar community is absolutely amazing.
Fantastic story - I was a software engineer from 1984 till 2018 and installed / setup many many pieces of equipment and never ever heard anything like this!! so interesting and it had a good ending. Made my day and you got a good result :) This is one for the anals like entering G800 (something close to that) on boot of early floppy-disk-based DOS to access the low level disk format. Thank you for sharing!
I was eating lunch as I watched this and almost choked on my pizza when you showed the PCB taped to the AC. Bravo sir, that was brilliant
Great video! MPP should be sending you a check or two each month! One for showcasing their stuff, one for doing their QA. 🙂
The most intelligent person on the tube right here. Pure genius. Love your videos. Thanks for sharing.
I probably wouldn't have figured it out without the community help!
@@LithiumSolar I’ve seen your other videos. You are incredibly talented
Bravo on the perseverance man! Sets a good example as too many people these days have underdeveloped resilience and go thru life continuously giving up too soon.
Good troubleshooting, Im still waiting for my 2 EG4. I have reviewed all your comments and there are some smart people out there. I still have reservations on signature solar as I have been waiting over a month for the inverters. We are going to order some more panels but not sure of signature solar is the best place to get them. I look forward to your next video.
My husband is outside trying to clear the 61 error. I’m so frustrated with the whole solar thing altogether. We struggled with Growatt for 8 months. Swapped to EG4. And here we are still no solar.
If you buy the EG4 you can only get spares and support from SS, as they have a tweaked product. Locked in.
The vanilla LV6548 can be paralleled with the same from almost any local or international supplier
I work in IT and never heard of having to cool the electronics to such a low temp to get it to take a firmware update, but there are many things in IT that require you to 'jump through similar hoops' to get them to work, so I'm not at all surprised. BTW, your story of using bigger fans reminded me of an IT issue I consulted on where a company had issues with a hard drive crashing and actually took it out of the case and ran a fan on it 24x7, the problem was that the room where they stored the computer, drive and fan was warm, so essentially no matter how much fan speed they used, pushing warm air across something a little warmer isn't going to do that much. I suspect this was the case for you... fan speed was good, but what it needed was a bigger temp difference. Glad you got it to work in the end.
A great experiment might be to use freezer spray and keep flashing until you isolate the component/s causing the issue.
I'm betting it's the baud rate driver for the serial connection, the baud clock frequency is probably slightly out of spec. Chilling it probably changes the capacitance which puts the clocks back in spec.
Its most likely the eeprom itself. Flashing those memories generate a lot of heat (depending on technology its using a laser or a UV light to erase the memory, and that can heat up the chip). But i never heard of it overheating, max I have seen was around 40-50*C, way lower than 90*C most electronics will start having issues at.
@@hubertnnn I doubt there's an EEPROM for firmware on that board. EEPROM's are largely redundant for most applications, the application will be on flash memory, probably flash ROM on the microcontroller.
The EG4 6548EX converters apparently have a higher idle power draw (about 110W) than the LV6548 (70W). The LV6548V is also high. I particularly care about this during the winter months.
I just did a video testing the idle power of the LV6548 vs the LV6548V here, skip to the idle power chapter :)
ua-cam.com/video/XfE9QFyHAmQ/v-deo.html
Glad the update finally worked. I ended up blowing compressed air across mine for the 11 min. This was far too painful.
I would have tried a continous squirt from a Freezing Spray Can. But first I would have tried a few judicious squirts around the board to try and locate which section is the critical one. Thanks.
I'm guessing, but I've seen this before. There is a possibility that there some micro cracks on the soldering on the pcb. I know you have the new firmware now installed, but it should would have been fun to try some freeze spray on various parts on the pcb to see what would happen.
Glad to see it's up and working again! :)
Looks like you cleverly righted the situation... or is that "writed"? 😄
I've also been in "IT Support" for over 20 years, never seen anything like that before! Maybe it was.. made in Alaska?
Me either. Closest I've seen is flashing raid controllers outside of a server, but typically just put a fan on them and they're good to go - never seen anything as ridiculous as this.
I worked in consumer electronics for a long time. It's probably a clock issue in the design (outside chance it's also about power supply smoothness). In order to get it to write, it seems you need to drop it to sub-ambient which will change the value of some of the components which allows it to start writing. Added airflow from a PC fan will just lower it to ambient temperature at a minimum, if your ambient is low enough then it might work and a compressor will output chilled air due to the way the air expands as it comes out of the compressor. But if you are in a relatively warm room already and use a fan, the device doesn't go sub-ambient (skin is more easily cooled by fans because it convects the humidity from our skin).
I remember working on a Pace Set-top box which wouldn't start up reliably because the oscillator capacitance was out of tune. Given the device is being updated via serial, there's a good chance that the oscillator that drives the baud rate is out of spec.
Dude, that blows. I'll be here (almost) all week...
I wonder if MPPSolar will recommend this procedure when they want the customer to flash a new firmware or they will send a new controller card.
I have worked in IT for many years. Many electronics such as mobile phones, laptops, desktops, servers, routers have a heat shutoff. If they get too hot they power off to protect damage to the components. Remember if it is like 80 degrees where you are standing, inside a computer case it will be from 10-30 degrees hotter. The components generate their own heat, especially CPUs when they are being put to heavy loads.
Basically leave off the comm cables. My 134kWh works just fine without talking to the two 12K's. I'll do the same with my two EG4's.
The eg4’s really a better unit for the reasons you mentioned. I’m not sure if they’ll communicate with your SOK rack batteries.
I talked with them today and confirmed they do support the same Pylontech protocol.
@@LithiumSolar that’s great news. Technically it makes sense I guess. They just added their eg4 Battery protocol to what was already there on the lv6548.
Crazy! Glad you got it though.
I have an EG4 6500EX-48 and it is having the same Error 61 issue and Sig Solar has not been able to help with this. I have mine connected to 4x SK48v100's and here is a direct quote from Sig Solar email: "I cant speak to other models we do not carry or offer support for but the EG4 unit at this time will not communicate with those batteries EG4 has been doing testing but as I stated at this time they will not communicate and there is no firmware fix for our unit to gain that functionality at this time."
Two rather important questions I hope you can help us with: First, if I have 5 48v server rack batteries with communications connected, and one BMS detects a fault, will it take the entire rack offline or just the one battery? Second, in an off grid system, will the BMS autoreconnect or be able to be reset without external power? Thanks! These questions are from guys who put a ton of power on sailboats.
Hey a quick question when you get time, I really like those PYTES 48v batteries that Watts 7/24 has, they are a little more than Signature solar, What I don't find about those batteries is the efficiency rating like S. Solar shows for there's.....Almost no reviews on them, any way could you do a tear down on it? I do like the quick connection for the wiring , no need for risk of overtightening the bolts. Also, they have a 6000 cycle compared to the EG4 7000 cycles. Your thoughts?
Hi....!
Hope you are doing well.
Do you remember I think Ina 2 years old video li-ion battery pack 4s6p using 21700 cells......
Please guide me if I want to build same like this a 4s 6p 21700 battery pack will be it is suitable for laptop power bank..?
I have HP ProBook 430 g2 laptop which requires 14.8v and approximate 2A
Please reply I'm waiting for your kind guidance.
Regards: M.Zubair
Entirely depends on the cells you choose by mostly yes. 16.8volts to 14.8V only brings you down to 3.70V per cell…quite a bit of capacity is left.
The easy solution is to use a buck boost converter to have a regulated output voltage when your cells are above and below the laptop power supply voltage. The LTC3780 has been popular because it is 10A but you could get away with a smaller unit or just don’t use one and give up all that extra capacity when the 4S pack gets too low
Thanks@@ericklein5097 ......!
Will you have some time for my project I tell you all details and will you have some kind words suggestions.....
You could be having a timing problem with the in circuits which is modified by the Temperature of the board!
I'm sure they use some common SPI flash chip which can be programmed with a cheap USB flasher. The next time if you have some experience with electronics you can unsolder the flash chip and flash it using the appropriate adapter or do it on the PCB by using a SOIC/SOP clip. The advantage of this method is that you don't need the board to be powered so no temperature concerns.
Thank you for sharing follow up with a solution.
By any chance after successfully updating, did you try again flashing another firmware without cooling? (To rule out if there is thermal protection somehow or hardware problem)
I think you don't have but also would be interesting ti see both boards under thermal camera while flashing to see if there is actual temperature difference between different boards.
If the hardware is problem could it mean that you possibly as for newer version one using the guarantee?
Nevertheless thank you for the tip and video.
Man that’s ridiculous what you had to go through. I’m not sure if the EG4 variant is the answer either. They all come out of the same factory and I’m pretty sure any software updates originate from there. A lot of companies loose interest in a completed model and constraint everything on the next project. I hope Voltronic isn’t one of those. So far this doesn’t give me that fuzzy warm feeling that if something goes south in a few years that it’ll have support/parts. Victron, Sol-ark and Schneider seem to have support and parts. Really have my eyes wide open.
Software might be different, and since it has issues with overheating during flashing, possibly slowing down the flashing process could solve the issue.
Thanks for sharing all of these technical details but I'm a bit unclear on a couple of the fine points....
So, are both of your LV's now running firmware 112.19? If so, was there also difficulty flashing the older unit (the one you purchased in January). The last thing you mentioned was that unit was running 12.13.
Also, is the Error 61 resolution due to the U2 display firmware update or the the U1 inverter fw update (you have both on 45.07??)
I recall that your 2P2 unit was successfully communicating with 45.07 & 12.13?
Great video, I have a F90 error code and hopefully will never see the error 61 code but I thought you might know of a solution to fix the F90 error on my SP6548 sun power gold inverter 48 volt 6500 watt i just bought a few weeks ago. F90 is in NONE of the documentation on their website or Axpert or voltronic website so I am hoping you have had some experience as the LV6548 is the exact same product as the SP6548 inverter I bought 6 weeks ago, has yours given the F90 code out yet? If so how did you fix it? I found some info online that the F90 code is a code that identifies a counterfeit firmware so I thought I would message you to see if you might know a way to fix this, the sunpowergold reviews are pretty scary so I thought I would ask you guys - appreciate any help and love your videos guys keep up the awesome videos
Can u please tell how to fix the grid sharing. Because my VM 3 drops pv watts to 60 when grid is on.
Clicked Like at, "Yes...it said 'zero blocks writed'". :)
I would think it's a problem with resistance/voltage drop. Cold temps = less resistance and less drop. When programming these chips require a specific voltage. If it changes at all it'll fail. Heating can cause it to have more voltage drop due to increased resistance.
Thanks! I'll be avoiding MPP Solar Junk from now on!
Perseverance! Well done!
Looks just like the EG4 6500 that also has the dreaded error 61
i feel like your trolling me 3:17 did you use a coupler to extend your cable lenghth
If that's a normal ethernet cable then it should be able to go up to 500m without an issue per spec (at 10 Mb/s).
Yikes. Id be worried some other functionality is also not operating.
Would it work if you flashed the board in a freezer?
Bizarre. Great video.
Yes video👍🎥 ⚡🔌💡🔋
Sorry, but I'm laughing so hard there are tears on my cheeks. Air-con full blast!!! *Success!!!* 🤣🤣🤣🤣🤣
Flashing while cold. Sometimes you just need to think like a Chinese!
Might want to try a better inverter. If you are interested in a grid-tied inverter, which removes the cost of batteries, check out the Fronius Primo, 3.8 - 10kW. Comes standard with a 10 year warranty. Designed and built im Austria,, with support via phone here in USA, by native English speaking staff.
Another brand to stay away from...IT hardware guy since 1986 here too, flashing FW are NEVER this difficult. Seems they done it on purpose.
I don't know that I'd say that necessarily. I have quite a few of their products and they're always rock solid. I've never had one fail. The support though... that seems to be the problem.
I would not say on purpose. Flashing outside of circuit is easy, flashing in circuit can have some weird side effects, since most memories require you to put 12V or more to a 5V rail (usually the reset pin) to switch to flashing mode. That 12V can cause some weird side effects with the rest of the device if not planned correctly.
Though in this case it feels to me its the speed of flashing that's the issue.
Eeproms get hot when flashing, and it might be possible to reach dangerous (disconnect) temperatures if flashed too fast, though I never have seen this kind of issue myself.
How to power 1000watts in a Car for 2 days and What is the Best Battery?
There is a first time for everything lol nice fix
Smashing!
That's just Nutz
by all respect: Taiwan is not China and our contact and sales adress is always Taiwan, not China
They had been wuite helpfull here in a grid tie scenario where we use dozens of the MPI 5K or 5.5K cause their support had been quite efficient and fast with spare parts / boards at least in Europe.
The only negative point is their fooling strategy to offer european customers the same product and service for totally crazy prices. You can get their inverters from their ebay stores in italy for 1200€ and in germany from their german account for 1800€. They use domestic ebay accounts but all with references to Taiwan. Sometimes they claimed to have a european warehouse but that changed over time or they had no inventory due to high demand since Russians invasion in the Ukraine.
I believe MPP is the OEM. All others are relabeled or PRC factory copies.
Yet another proof that LOW PRICE does not equal best value. I would gladly pay $3,200 for a Conext XW Pro. Fortunately that isn't necessary yet, the XW+ is still working perfectly.
I would also stop recommending MPT as well on your list.
Firmware download link please for 3.2 kw ?
3.2kW what? Which inverter model do you have?
ok on the real. i am thinking the bios you had may be something on the level of a sensor level reading that said 100. but the bios said 10.0 is to hot but it was ment for 100.0
Salve può mandare il tool
At this point, maybe the guy (1:39) who blew onto the PCB must be spitting cold saliva on it to cool it down!
I promise no saliva, as stupid of a solution as it was I was trying to be careful because saliva + electronics would not end well. I think it worked easier for me because I was already in a cool basement, so it may not have needed as much cooling as someone in a warmer climate or outside
What could be going on at MPP to not answer your emails? I mean you are an influencer, what chance would one of us nondescripts have if a problem arose? And a problem will arise - could be 3 months or 3 years - it will arise, so really what MPP is saying to us is - You buy this inverter know that it will terminally fail.
Its more like: Don't expect any warranty, you get what you get.
I have seen this kind of behaviors many times, especially since where I live law is just a theory, so you cannot even enforce a warranty on companies that offer it.
MPP is in Taiwan, not China.
This belongs in an episode of the Twilight Zone.
So the solution is to bribe a fast food worker and use their walk in freezer, got it. The joys of Chinese electronics.
😎🖖✌👍👌🤓
hmmmm ! craaaazy !!!
These oem inverters all come from voltronic and have good hardware but their software and firmware is buggy and awquart . I can't understand how they can not provide simple support with firmware on their website. It's infuriating, yet we all keep buying from them.
Yep. We keep buying them because the hardware is good!
Crap hardware, sketchy as hell, this explains why you’re getting zero responses from MPP. They know it’s an issue and don’t want to own up to it.
We only want to see Battery videos for u stick to that.U will waste your time doing anything else now.Buy a battery and do a review
I'm getting tired of batteries.
Wow! At my age I could never go through all that without losing my temper and probably smashing the inverter on the floor!
Victron firmware updates are seamless and I have never had one go bad. I’ve already done close to a dozen of them as they send them quite frequently.
It’s worth the extra cost for my peace of mind. 🫣🖖
No smashing here, but it sometimes results in colorful words being said which do not get repeated in videos 😂
Hi....!
Hope you are doing well.
Do you remember I think Ina 2 years old video li-ion battery pack 4s6p using 21700 cells......
Please guide me if I want to build same like this a 4s 6p 21700 battery pack will be it is suitable for laptop power bank..?
I have HP ProBook 430 g2 laptop which requires 14.8v and approximate 2A
Please reply I'm waiting for your kind guidance.
Regards: M.Zubair