NewStats: 3,262,015 , 8,175,885 topics. Date: Saturday, 31 May 2025 at 02:53 PM 8c45

kristien4:
How do you charge these different battery packs?? Same inverter??

No . Three different inverters. Note the packs are a mix of 24 and 48v and could not have been on a single inverter

Absolutely not in a single place. Three inverters in three different buildings.

sharks776:


Wow 😲 this is huge, would love to see a picture of your power set up.
Are they all connected in parallel?

Trippledots:


You sure you are actually reading the recommendations and advices given?? Calm down and read them o

I'm reading it. What did I miss?

Hybrid600:
This is like my best thread on NL. The wealth of knowledge here is immeasurable. Thanks to everyone that contributes in one way or the other.

@swagifted
Where my Jos mango?

omo. You go see am soon.

Between an ipower 5kva hyrid inverter... 4000w pv
And Powmr 6.2kva hybrid inverter...6500w pv which is better. Is Powmr a good product?

Edrizz:


Do you have the 80a

Price?

kristien4:
Between an ipower 5kva hyrid inverter... 4000w pv
And Powmr 6.2kva hybrid inverter...6500w pv which is better. Is Powmr a good product?

They are the same family.

S007:


I have not made any comment here in years.......
How am I not going to make this an epistle....

Thanks for your wonderful contributions. I think you are right on this one. But not entirely 100%.
The OEM did not state the rating of the mppt tracker in their spec sheet. I strongly suspect that they chose to be silent on this for a reason. They know what they are doing.....
I did a couple of deye installations of recent in two different places. I had to put 8 units of original Canadian solar 650W s on 6Kw deye inverter and I ran into a dilemma doing the job. All s installed together in the same angle.
If I split the s into 2 strings, the inverter will struggle to wakeup or run during the day. To make matters worse, if I choose to do the second string, I will have to run extra pair of 10mm cable over 40meters. At 5000naira/meter that is extra 200k.
I was very angry and furious with deye on why they choose to be silent over this very important matter.
Well.... i took matters into my own hands. I put all the 8 s on one string and into one of the mppt tracker knowing fully well that I am not going to break any of the rules according to their spec sheet to avoid voiding the warranty.
Kw, voltage and current all slightly below spec rating even on a single string.
On commissioning, we were getting well over 100amps. In fact I had to limit the output current at some point to protect battery. Installation had been running for several months without any issue.
My conclusion is that the 7.8Kw norminal rating for a 6Kw deye is for the internal charge controller and not mppt/2 as i also previously thought. After all, they did not state this in their document anywhere.
Now... their could be reasons where you want to use only one mppt like in my case. Their will also be many reasons where I will want to use the 2 mppts like if I have enough s, if cost of running cable for another string is no issue or if the installation is such that sun shines on one part of the roof in the morning and the other part later in the day and i need to take advantage of the two sides.
Hope this helps.

Based on specifications, what you experienced is normal.. it can output 6500w maximum.

13A x 500V on each tracker. Is 6500w
That's 120A charging at 48V norminal which is the maximum it can charge.

But don't expect it to output 6500 on both trackers to give 13kw.. it will simply throttle them to 3250w each and output 6500w.

That's why it's written maximum full Load 250V per tracker. So if you have like 13kw. The trackers will work at 250V /13A + 250V/13A which is 6500w

Just like Epever allows you to use 2 tracker as 1, or allow them to operate as independent 2 tracker, output is still limited to maximum output.

Dam5reey1:


Based on specifications, what you experienced is normal.. it can output 6500w maximum.

13A x 500V on each tracker. Is 6500w
That's 120A charging at 48V norminal which is the maximum it can charge.

But don't expect it to output 6500 on both trackers to give 13kw.. it will simply throttle them to 3250w each and output 6500w.

That's why it's written maximum full Load 250V per tracker. So if you have like 13kw. The trackers will work at 250V /13A + 250V/13A which is 6500w

Just like Epever allows you to use 2 tracker as 1, or allow them to operate as independent 2 tracker, output is still limited to maximum output.

Thanks for these additions, I hope people will understand better.

ibietela2:
Good evening, please I want to start buying materials and keeping them instead of waiting to do it all at once.

Which should I buy first? I was thinking of the growatt SPF ES5000, then s and batteries.

Which type of s should I get and battery type too.

Any other recommendations are welcome, especially ways or materials that will not cost me a lot but still be able to work

Thanks

You are on the right path.

Buy inverter first, then s and Batteries last.

Experts on this thread have a unique way of answering questions, which seems odd to me.

ibietela2:
Good evening, please I want to start buying materials and keeping them instead of waiting to do it all at once.

Which should I buy first? I was thinking of the growatt SPF ES5000, then s and batteries.

Which type of s should I get and battery type too.

Any other recommendations are welcome, especially ways or materials that will not cost me a lot but still be able to work

Thanks

Buy them in this order: Inverter>Battery>s.

Reason: Inverter has a long shelf life, Batteries has a short shelf life, Keep them too long, they would sulphate or discharge beyond DOD, s will be exposed to breakage and other risks when you stock them.

Secondly, you can start using your Inverter & Battery when you grab the batteries and add s later.

Third is that the price fluctuations affects Inverters and Batteries more than s.

I hope this helps

jonescosmos:


Buy them in this order: Inverter>Battery>s.

Reason: Inverter has a long shelf life, Batteries has a short shelf life, Keep them too long, they would sulphate or discharge beyond DOD, s will be exposed to breakage and other risks when you stock them.

Secondly, you can start using your Inverter & Battery when you grab the batteries and add s later.

Third is that the price fluctuations affects Inverters and Batteries more than s.

I hope this helps

Depends on type of batteries
Lithium generally has nothing to do with sulphation.

zeestone99:


They are the same family.

Okay then, ill just go for the powmr...has better specs.

jonescosmos:


Buy them in this order: Inverter>Battery>s.

Reason: Inverter has a long shelf life, Batteries has a short shelf life, Keep them too long, they would sulphate or discharge beyond DOD, s will be exposed to breakage and other risks when you stock them.

Secondly, you can start using your Inverter & Battery when you grab the batteries and add s later.

Third is that the price fluctuations affects Inverters and Batteries more than s.

I hope this helps

Thanks, which inverter brand do you recommend for a budget of 350 to 400k?

microgiant:


You are on the right path.

Buy inverter first, then s and Batteries last.

Experts on this thread have a unique way of answering questions, which seems odd to me.

Thanks, which inverter brand do you recommend for a budget of 350 to 400k?

dollarnaira:


Depends on type of batteries
Lithium generally has nothing to do with sulphation.

Please do not store your Lithium Batteries for too long without trickle charging them from at max 3 months interval.
They might gradually deplete beyond DOD and you might need to jump start them and there are also chances that some of the cell might not operate as normal as should be after that.
Lithium Cell Warrantee does not cover this scenario.

PLEASE TAKE THIS SERIOUSLY

jonescosmos:


Buy them in this order: Inverter>Battery>s.

Reason: Inverter has a long shelf life, Batteries has a short shelf life, Keep them too long, they would sulphate or discharge beyond DOD, s will be exposed to breakage and other risks when you stock them.

Secondly, you can start using your Inverter & Battery when you grab the batteries and add s later.

Third is that the price fluctuations affects Inverters and Batteries more than s.

I hope this helps

Hello Chief.
I'm curious. If batteries have short shelf life, how do manufacturers and sellers store them in their stock before sale which may take months?

TCD:


Hello Chief.
I'm curious. If batteries have short shelf life, how do manufacturers and sellers store them in their stock before sale which may take months?

Usually they would factor in some months from Production to Shipping. This might take out 6 - 8 months shelf life for Flooded Batteries, 5-7 Months for Gel Batteries, 10-14 months for Lithium Batteries. So resellers have average Max of 6 Months or less to sell the battery.
This s to why they don't recommend you store them further than necessary.

ibietela2:


Thanks, which inverter brand do you recommend for a budget of 350 to 400k?

Any Good 3KW 24V Voltronic Based Inverter within your budget will be ok. Felicity, SAKO, SNRE, MUST, Ipower, etc, If you can up your Budget a little, Go for Growatt.

TCD:


Hello Chief.
I'm curious. If batteries have short shelf life, how do manufacturers and sellers store them in their stock before sale which may take months?

That's why some batteries fail prematurely even when you buy them as New, dead of long storage!

Dishtech:

200w is a 24V s, with voltage between 31.5v to 36v. The best way to charge battery with pwm charge controller is to keep the voltage battery voltage to avoid power losses hence 80w-180w s are recommended for a 12v system. But if the charge controller is mppt you are good to go.

Thank you so much.

jonescosmos:


Please do not store your Lithium Batteries for too long without trickle charging them from at max 3 months interval.
They might gradually deplete beyond DOD and you might need to jump start them and there are also chances that some of the cell might not operate as normal as should be after that.
Lithium Cell Warrantee does not cover this scenario.

PLEASE TAKE THIS SERIOUSLY

Definitely bro
Obviously true.
Trying to compare.

TCD:


Hello Chief.
I'm curious. If batteries have short shelf life, how do manufacturers and sellers store them in their stock before sale which may take months?

Most of us store batteries above norminal voltage which is the beginning of degradation. Store batteries at norminal voltage for a period of time and charge once in 60 days. Lithium ion can stay longer than LifePO4 but LifePO4 has lifespan of roughly 10yrs while lithium ion is less than 4 or 5 both at 80%.

jonescosmos:


Any Good 3KW 24V Voltronic Based Inverter within your budget will be ok. Felicity, SAKO, SNRE, MUST, Ipower, etc, If you can up your Budget a little, Go for Growatt.

Thanks, growatt I saw is the 5kva and way above my budget

toscotech:
Powmr 60a for sale

Do you have 80a

ayo1984:


Do you have 80a

No nah 60a i have

jonescosmos:


Usually they would factor in some months from Production to Shipping. This might take out 6 - 8 months shelf life for Flooded Batteries, 5-7 Months for Gel Batteries, 10-14 months for Lithium Batteries. So resellers have average Max of 6 Months or less to sell the battery.
This s to why they don't recommend you store them further than necessary.

Thank you all for the .

Is there anyway to know batteries with a seller that have been stored past the recommended intervals? Especially lithium batteries

Good day all,
Please did PowMr have office or repair center in Lagos?

abbeymighty:
Good day all,
Please did PowMr have office or repair center in Lagos?

I'd be surprised if Powmr has repair centers anywhere in the world, since what they are really do is rebadge hardware from SRNE.

They are both facing the opposite sides of the building (front and back).

In the morning the Jinkos gets better sun light as compared to the Longis but the Longi measures up at the peak of the sun (between 12 and 3pm).

Peterlove11:


Are the jinkos better placed than the longis in of orientation?......based on the numbers on the pix, it seems the jinkos are doing better in of generation

At NOTC they won't produce up to 11A.

However, the inverter can only draw what it needs (current) from the s as long as you maintain the set max voltage.

mctfopt:


Those two s you mentioned have Isc of more than 11A each which will exceed the yeye 5000ES Growatt's maximum PV input current of 22A