AllyPolly:
This is my personal and honest review about Valto.
I bought a 15kwh LiFePO4 battery at 2.8M from him April this year, which is supposed to have a "Premium BMS". This system was installed by Dam5Reey1 (God bless this man).
We had other options (with communication and better features) but then, we thought let's patronize our naija guy, a decision which i have come to regret.
During the process of installation it was almost like we were chasing this guy to give answers to necessary questions on battery (it is always single to few words without clear instructions). Just on the third/forth day after installation, the BMS began to misbehave (we were unable to view the battery readings on the provided mobile app). The only "solution" he came up with was an image of battery voltage reading with respective battery equal. Is this what I paid for?.
He even asked sarcastically that "is the battery not working?". Which means since the battery "is working", i should forget issue of the BMS, who does that?

Is a functioning BMS not part of what I paid for?
He never provided any working solution to the problem till today neither did he checkup to see if the issue has been resolved or even ask how the battery is doing.

I woke up today with the system off due to low battery because I was unable to check the status of the battery. I am not even a heavy user. I use only 1 TV (during the day), 2 fan, and my Freezer (not always on), with few bulbs.

I am leaving this out here for others to see. If i had seen a review like this, i would not have gone ahead with the purchase.
You might have a different encounter but this is my personal experience with his much talked about "Grade A" cells!

I don't even know what to type here . I have bought 2 batteries from Valto and they work well till dat since 2 years ago, Buying from Valto which is a coupled batteries , I gave room for any sort of small issues . His batteries are good and new better than felicity. I would rather get batteries off Valto and learn how to couple them than spend 3.5 million for all these big names , I guess because I am a technical person.

Valto is a trader in my terms and I don't also expect customer services from him like a big company .

My conclusion is simple , Not because your inverter went off today or the battery has some issues make Valto a bad dealer . He is a good honest seller. I am looking for money to get 2 more batteries from him .

Sorry for your inconvenience sha . Right now I have my inverter with Victron for over a month , I have been chasing them but no response. Lets jus try and manage ourselves please

casualobserver:


Why take the risk exceeding the Voc, when you can just over panel with parallel strings? And have a wider power curve?

Growatt spf5000 are well known to handle overpanelling so long as you don’t exceed the voc.
Some guy even had 15kw on his spf5000.

This guy below had 2x 4k parallel strings on his spf5000, that’s just one example.

My panel's PV parallel current exceeds 22A, which is the maximum PV input current of Growatt SPF5000ES.

I don't have doubt you can over panel it; maybe with panels that has Isc of less than 11A. Mine is 13.4A

EPOMA:


I don't even know what to type here . I have bought 2 batteries from Valto and they work well till dat since 2 years ago, Buying from Valto which is a coupled batteries , I gave room for any sort of small issues . His batteries are good and new better than felicity. I would rather get batteries off Valto and learn how to couple them than spend 3.5 million for all these big names , I guess because I am a technical person.

Valto is a trader in my terms and I don't also expect customer services from him like a big company .

My conclusion is simple , Not because your inverter went off today or the battery has some issues make Valto a bad dealer . He is a good honest seller. I am looking for money to get 2 more batteries from him .

Sorry for your inconvenience sha . Right now I have my inverter with Victron for over a month , I have been chasing them but no response. Lets jus try and manage ourselves please

almighty victron abi na another one

mctfopt:


My panel's PV parallel current exceeds 22A, which is the maximum PV input current of Growatt SPD5000ES.

I don't have doubt you can over panel it; maybe with panels that has Isc of less than 11A. Mine is 13.4A

You can safely. There are numerous examples. In fact the growatts are well known for overpanelling. I’ll look for the guy who ran his for months and post. Like I said make use of Amosplanet and ask Amos directly. He is one of the engineers at Growatt China.


Visit Diysolar forum.com and search for Timselectric

mctfopt:


My panel's PV parallel current exceeds 22A, which is the maximum PV input current of Growatt SPD5000ES.

I don't have doubt you can over panel it; maybe with panels that has Isc of less than 11A. Mine is 13.4A

even if u stay safe within the limits of voc.. wat abt Isc. Most piple believe an inv will just take wat it needs and leave the rest. Which i doubt esp wen i see error code of over current on the manual of any inv..

Anyone with experience on prag servo stabilizer . I have the 30kva 80v to 280v servo version. Just noticed the breaker tripped wen nepa brought light, went to switch the breaker on, and stabilizer is neither displaying nor working. Only works thru mains(bypass) Please an one with any experience on this?? I cant find any fuse, is it hidden somwhere??

brightk:
even if u stay safe within the limits of voc.. wat abt Isc. Most piple believe an inv will just take wat it needs and leave the rest. Which i doubt esp wen i see error code of over current on the manual of any inv..

I have just sent you a picture with a post from the engineer from Growatt. What else do you want…feel free to ask him directly. This is from the source.

I don’t know why this is even a debate, there is so much resource on the web about overpanelling. I’m shocked!

casualobserver:


You can safely. There are numerous examples. In fact the growatts are well known for overpanelling. I’ll look for the guy who ran his for months on 15kw and post. Like I said make use of Amosplanet and ask Amos directly. He is one of the engineers at Growatt China.

I'm only cautious as when I tried it with Longi 450w with 11.60A Isc it kept shutting down at peak sun hours. It stopped when I removed the parallel.

mctfopt:


I'm only cautious as when I tried it with Longi 450w with 11.60A Isc it kept shutting down at peak sun hours. It stopped when I removed the parallel.

Here is the thread. In fact it wasn’t 15kw but 23.5Kw on 3 spf5000s. He has since moved on to Deye

https://diysolarforum.com/threads/my-build-thread.35602/

If you’ve got Growatt make use of amosplanet…seriously! It’s the go to site for Growatt related matters.

Valto:
good morning. we last chatted on 27th April about the bms not connecting on your phone, which i later learned from your installer dam4reey that it later started connecting. i also discussed about voltage parameters settings issues with him, which i honestly believed every issue has been resolved. i am quite surprised that u are posting this review this morning without reaching out to me for over 35days! about any recent issues. i could have easily swapped the bms, or better still replace the entire battery, if u had reached to me recently about any issues still persisting.
this issue seem strictly BMS ish, not about cell Grade!

Nice, just continue with JK BMS since it offers more compared to JBD.

mctfopt:


I'm only cautious as when I tried it with Longi 450w with 11.60A Isc it kept shutting down at peak sun hours. It stopped when I removed the parallel.

It could be because you have one of the earlier Growatt with 18a. I think the German guy said something like that on another video. Whatever the case get to your firmware number and ask Amos. It could be you need a firmware update.

Valto:
good morning. we last chatted on 27th April about the bms not connecting on your phone, which i later learned from your installer dam4reey that it later started connecting. i also discussed about voltage parameters settings issues with him, which i honestly believed every issue has been resolved. i am quite surprised that u are posting this review this morning without reaching out to me for over 35days! about any recent issues. i could have easily swapped the bms, or better still replace the entire battery, if u had reached to me recently about any issues still persisting.
this issue seem strictly BMS ish, not about cell Grade!

I should have reached out to you again when you have not sounded as if you care about what's happening? Not even a single word of apology was rendered about the awful experience!

Is it an abomination for you to check out on a customer whose last conversation with you states the issue persists? or was it my installer that paid you?

If not that my installer is good and calm, he was the only person following up on the matter. He was also really disappointed on the turnout of event.

Okay, now, I'm saying it clearly: The issue persists and I need a resolution to this matter.
2.8M isn't something to gamble with. Thank you!

casualobserver:


It could be because you have one of the earlier Growatt with 18a. I think the German guy said something like that on another video. Whatever the case get to your firmware number and ask Amos. It could be you need a firmware update.

Yeah, about it been the 18A version you may have a point. The current one I got is 22A. I know about the forum. I'm a member for like two years or so. Thanks for the update.

mctfopt:


Yeah, about it been the 18A version you may have a point. The current one I got is 22A. I know about the forum. I'm a member for like two years or so. Thanks for the update.

If you watch the 2nd video again from around 4:50, his strings are 12a each totaling 24A….on his 22a version.

mctfopt:


Yeah, about it been the 18A version you may have a point. The current one I got is 22A. I know about the forum. I'm a member for like two years or so. Thanks for the update.

Here is what you are looking for. I get the feeling all Spf5000s can be overpanelled including the 18A but you must perform a firmware upgrade especially on the 18As.

https://www.amosplanet.org/forums/topic/overpaneling-on-spf5000es/

Edit: Also discovered that Timselectric was using the 18a version and his parallel setup simply capped his available amps at 18.2A. So looks likes you can parallel either, the inverter simply won’t draw more than the max (18 or 22). Hence Amos’s comments about waste if you overpanel excessively.

We don finally enter rainy season proper.

Na trenches be this for solar walahi. My setup isn't able to add more than 50% charge to my 4KWH battery in a day for the past few days, especially since I'm off-grid and there's rarely NEPA light anyway.

If this persists, I'll need to add an extra panel to my string.

casualobserver:


Here is what you are looking for. I get the feeling all Spf5000s can be overpanelled including the 18A but you must perform a firmware upgrade especially on the 18As.

https://www.amosplanet.org/forums/topic/overpaneling-on-spf5000es/

Edit: Also discovered that Timselectric was using the 18a version and his parallel setup simply capped his available amps at 18.2A. So looks likes you can parallel either, the inverter simply won’t draw more than the max (18 or 22). Hence Amos’s comments about waste if you overpanel excessively.

I don't really understand the talk about exceeding input current leading to the inverter shutting down.

Unlike voltage, current is drawn, not pushed. Your PVs won't be sending current to your inverter; it's your inverter that draws what it needs (and should be limited to the specified pv input C). Find it hard to believe an inverter would be stupid enough to draw more current than it can work with

AllyPolly:



I should have reached out to you again when you have not sounded as if you care about what's happening? Not even a single word of apology was rendered about the awful experience!

Is it an abomination for you to check out on a customer whose last conversation with you states the issue persists?

If not that my installer is good and calm, he was the only person following up on the matter. He was also really disappointed on the turnout of event.

Okay, now, I'm saying it clearly: The issue persists and I need a resolution to this matter.
2.8M isn't something to gamble with. Thank you!

Please, bear with him. He's going to fix the issue.

Victron inverter? What happened to it?

EPOMA:


I don't even know what to type here . I have bought 2 batteries from Valto and they work well till dat since 2 years ago, Buying from Valto which is a coupled batteries , I gave room for any sort of small issues . His batteries are good and new better than felicity. I would rather get batteries off Valto and learn how to couple them than spend 3.5 million for all these big names , I guess because I am a technical person.

Valto is a trader in my terms and I don't also expect customer services from him like a big company .

My conclusion is simple , Not because your inverter went off today or the battery has some issues make Valto a bad dealer . He is a good honest seller. I am looking for money to get 2 more batteries from him .

Sorry for your inconvenience sha . Right now I have my inverter with Victron for over a month , I have been chasing them but no response. Lets jus try and manage ourselves please

Powering the owerri ice block making machine

20kw srne hybrid inverter
30kwh Bluecarbon lithium battery
32 panels 660watts bifacial Canadian panels

twinskenny:
Powering the owerri ice block making machine

20kw srne hybrid inverter
30kwh Bluecarbon lithium battery
32 panels 660watts bifacial Canadian panels

This is nice. Enjoy your investment

I'm sure it's all going to be resolved...

AllyPolly:



I should have reached out to you again when you have not sounded as if you care about what's happening? Not even a single word of apology was rendered about the awful experience!

Is it an abomination for you to check out on a customer whose last conversation with you states the issue persists? or was it my installer that paid you?

If not that my installer is good and calm, he was the only person following up on the matter. He was also really disappointed on the turnout of event.

Okay, now, I'm saying it clearly: The issue persists and I need a resolution to this matter.
2.8M isn't something to gamble with. Thank you!

Wow. This is very nice and neat.
Nepa go vex tire...

But hope those trees no go dey worry...

twinskenny:
Powering the owerri ice block making machine

20kw srne hybrid inverter
30kwh Bluecarbon lithium battery
32 panels 660watts bifacial Canadian panels

EPOMA:


I don't even know what to type here . I have bought 2 batteries from Valto and they work well till dat since 2 years ago, Buying from Valto which is a coupled batteries , I gave room for any sort of small issues . His batteries are good and new better than felicity. I would rather get batteries off Valto and learn how to couple them than spend 3.5 million for all these big names , I guess because I am a technical person.

Valto is a trader in my terms and I don't also expect customer services from him like a big company .

My conclusion is simple , Not because your inverter went off today or the battery has some issues make Valto a bad dealer . He is a good honest seller. I am looking for money to get 2 more batteries from him .

Sorry for your inconvenience sha . Right now I have my inverter with Victron for over a month , I have been chasing them but no response. Lets jus try and manage ourselves please

Same here. I bought a battery from him based on the recommendation of a friend who has had one of his batteries for about 2 years or more. The battery I bought came with JBD BMS which seems to have occasional loss of Bluetooth connection. However, I do not consider this a serious issue and I did not even contact @Valto to complain. I think his batteries are good. He didn't make the BMS and it is likely that one may just have a dud. This is not something to attack him for.

twinskenny:
Powering the owerri ice block making machine

20kw srne hybrid inverter
30kwh Bluecarbon lithium battery
32 panels 660watts bifacial Canadian panels

It might not be only ice block he's producing. Maybe sachet water is added.

adrusa:


Same here. I bought a battery from him based on the recommendation of a friend who has had one of his batteries for about 2 years or more. The battery I bought came with JBD BMS which seems to have occasional loss of Bluetooth connection. However, I do not consider this a serious issue and I did not even contact @Valto to complain. I think his batteries are good. He didn't make the BMS and it is likely that one may just have a dud. This is not something to attack him for.

I bought 100A 16S jbd from him when he was in the hospital. The bms app wasn't working. I later called him and complain. He gave me a discount when I picked another one. I'm not even using the first bms again.
Business is all about understanding..

isangjohnson:

This is nice. Enjoy your investment

Not me though

Did for a client

Nice setup, thumbs up to you.
But your Bi-Facial Panels will not do well from the look of the installation.
Bi-Facial panels do better when installed in places where direct reflections will hit the down facing surface.

My advice, If the sun rises or sets from the direction you took the picture, try buying some stainless steel sheets (the one they use to make gates) and attach on that wall and floor of the area where your panels casts shadows. This will optimize your Bifacial Panel Performance.

twinskenny:
Powering the owerri ice block making machine

20kw srne hybrid inverter
30kwh Bluecarbon lithium battery
32 panels 660watts bifacial Canadian panels

Hybrid600:

Victron inverter? What happened to it?

The auto switch is gone , It was overloaded many times , Electric cooker microwave and water pump .

jonescosmos:
Nice setup, thumbs up to you.
But your Bi-Facial Panels will not do well from the look of the installation.
Bi-Facial panels do better when installed in places where direct reflections will hit the down facing surface.

My advice, If the sun rises or sets from the direction you took the picture, try buying some stainless steel sheets (the one they use to make gates) and attach on that wall and floor of the area where your panels casts shadows. This will optimize your Bifacial Panel Performance.

Thank you so much for the advice i do appreciate it

Was this the case when the grid was on?

EPOMA:


The auto switch is gone , It was overloaded many times , Electric cooker microwave and water pump .