NewStats: 3,263,492 , 8,180,329 topics. Date: Friday, 06 June 2025 at 09:07 AM 4f1k3s

Dam5reey1:


So you want them to use 150K+ BMS on a budget battery?
Same reason you dont find BT or wifi BMS on budget batteries, or even Screens, this has nothing to do with the quality of cells.

High quality BMS ain't cheap.

As you noticed, cheap quality battery pack often come with bare bone BMS.

omotoda:


Please what capacity and brand is your servo AVR.Ihave gotten burnt severally with relay AVR

15KVA BLUE GATE

Dageek:


I have implemented several automations. One automation turns off powerful appliances when consumption exceeds solar generation for more than 20 minutes, but only if the time is after 4:00 PM. Another automation activates a custom-built fan that I attached to the external heatsink when the temperature rises above 48 degrees Celsius. I have an automation that turns on the water heater once the battery reaches 100%.

The past 5 months have been great so far.

My system consists of Deye 6kw SG03 version, Deye SE-G5.1 PRO-B x 2, Jinko 555w x 12

You went all out. That's how you do it, get it right the first time and rest. Or be a penny pincher and do it twice or even thrice.

Dam5reey1:
Got a call if we sell Haisic.
So I looked into their market again they now have these models

Seeing SON logo makes me mad.

Those dude don't check shit. Just pay them and get your logo.

omotoda:


Did I mention that in the 12 years I never did a single repair until 2023 when internal leakage occured and it was not cooling well.I was told it has internal leakge and was advised to change the internal piping but decided to buy a new one.It is still sitting somehwere in my house to be sold as scrap when I have the time.

We move the same way. I can only repair power related issues of a fridge or freezer. Once it gets to condenser/leakage and compressor issues, I'm better off replacing it as this fix never lasts.

GloryJoyeux:
@ mctfopt

Hi,

See the picture of this particular mount, ignore the pv I scribbled out, these 6 visible s are the JA solar mount facing north.

Edit: For transparency, I’ve included the picture without the scribbled s to show they are different s, those are jinkos and part of the south facing string.

I have pv input on other mppt strings facing south (not visible in the picture).

Oh, this is good to hear. I was thinking the clearance will be much more than this.

This is awesome to see the clearance is just the usual 2-3 inches.

Thanks for the update.

GloryJoyeux:
Hi,

Don’t agree to be talked down on buying bi-facial s for roof mount, especially if you have an angled roof made of aluminium or other reflective material and it is of a light colour

If you don't mind, can you share this bi-facial pv picture.

munchies:
A battery that says max charge at 100a, does it mean I have to set 100a on the inverter? It's currently at 60a on the inverter settings. I use a Felicity 3kva and 3.5kw lithium. Bulk and float charge is set already at 28v.
It charges slowly from grid
Please help

Your inverter may not do more than 60A

Also you really don't have to charge your batteries at the maximum recommended current for it to be ok.

Slow charge from grid may be as a result of different factors such as poor input voltage, bad frequency etc. What is the grid charging current?

trentslawson:


Ratings dey extremely important that's why i placed it first as long as there's good rating you will get what you expected 90%

Back in my early days in AliExpress, I used to sellers. These days I just do my due diligence and click buy. I no longer sellers on AliExpress before hitting the buy button. Once I'm through with vetting the reviews, and by Jove, I do vet it. There are too many fake reviews, easy to spot if you've got experience.

The only place I sellers are in Alibaba. That one is 100% you must do that.

edobor108:
i need this spot welder

AliExpress got you covered.

omotoda:



You can never go wrong with Scanftost freezer.Had one since around 2011,it got spoilt in 2023 and I replaced with another Scanftost.Superb freezing,!!

Oh, thought I was lucky. Happy to hear other good testimonies from other s.

oweniwe:


Thanks so much.

I saw it on AliExpress

But I haven't used the platform before so... And I'm in Delta State. I don't know how long the delivery will take

There is always a first time.

It takes three weeks max.

Someone has something similar in Nigeria, try ing Valto.

uche393:
good evening all, i have seen some people complain that inverters makes powerbanks to swell how true is this claim? i was telling a guy who runs a charging center about installing solar in his shop and he pointed this claim too, he showed me some customers who had swollen powerbank as a result of charging with solar.

I’ve been using an inverter to charge my power bank for many years. None of my power banks have swollen so far.

Swollen power banks are more related to the quality of the battery used to make the power bank or to charging the power bank with an inappropriate charger. A good power bank with a reliable Battery Management System (BMS) should still prevent damage from occurring.

SourYoghurt:
please guy, what's your experience with Thermocool Inverter Freezers, Does it freeze and ice liquid like conventional freezers when used with solar.

My current freezer, barely freezer things probably because it's older.

Please, I need your guidance.

Buy Scanfrost. I'm biased, I use a Scanfrost. Everyday I fight to break stock and other foodstuff stored inside there. This night I had to put the chicken there in airfryer to be able to cut it.

Got so frustrated with breaking up food, which are frozen, that I ordered an ice pick to help me break up blocks.

Disclaimer: I use a servo AVR. Freezer plus every devices at the house, never sees less than 220V, on NEPA or on inverter. Dunno if that counts.

oweniwe:
Good pm house.

Please who knows where I can get this charging module?

Or something similar capable of charging heavy power banks.

Want to buy a few and connect to my DC converter

Thanks

CC: bass.dow mc.tfopt Dam5.reey1 Heaven.lyBang

I bought something similar, for $2.20, in AliExpress. Mine just have only one type C output. Input voltage 10v to 30v. This charges my phone pretty rapidly. Totally works.

trentslawson:
As a Aliexpress Shopper, This are the things you should take note of because I've been shopping there since 2021

1 Learn to KYS (its very important, visit the store & see the rating)

2 Communicate with the Seller before purchasing (A good communication tells if you are buying from the right source)

3 Check for Refund & Return policy

4 Follow up & keep tracks while communicating with the Seller.

5 give good reviews & follow the store. (Keep tracks of all the stores you bought from with successful delivery & quality products.

Follow all this steps & you won't have issues

I only do no 1. Always get what I ordered. Maybe my juju strong.

chris81964:
LIGHTNING STRIKES... BUT MY INVERTER STOOD ITS GROUND! 🔥⚡

Do you that video I posted about how lightning can shut down even the best inverters? Well, let me take you behind the scenes of what just happened — and trust me, this was not your average rainstorm.

It started with a LinkedIn post I read some time ago — multiple inverters within a 5 km radius had failed after a ferocious lightning storm. These were properly installed systems, with earthing and SPDs in place — yet they still failed. That got me thinking. That got me experimenting. That got me ready.

Then yesterday happened.

The heavens opened. The sky lit up like a thousand fireworks. This wasn’t just lightning — this was lightning on steroids. Strike after strike. Some so violent they triggered car alarms in the neighborhood. The whole area was under siege from Mother Nature herself.

And there I was… watching… waiting… monitoring my system.

GUESS WHAT?

Not a blink. Not a flicker.
The lights held steady.
My inverter stood its ground like a warrior.
My solution worked.
The theory became fact — and it survived a full-scale attack.

Whew. That was intense.

👉 Watch the full video to see how I solved a problem that takes down systems worth millions. If you care about your investment, you NEED to see this.

https://www.youtube.com/watch?v=1gTOINR6y-8

A very important topic. The is the reason most inverter fail in the rainy season.

adrusa:


No try am.

1. I don't know if there is expertise about installing it without feeding back into the grid.
2. It probably won't work.
3. If it works and feed back into the grid, you may be supplying electricity to the whole town or worse get someone electrocuted down the line.
4. 3 may not happen because grid tie inverters work with grid, once the grid is down, they also go down.

Finally, it is a very bad idea. Don't do it.

GRID tie does not necessarily have to to the grid. I've seen a couple of grid tie work very well in Nigeria in a niche area that only requires power during the day (banks, schools, etc).

Pabodo:
Good afternoon, Please can one use a Grid-tie Inverter with battery? If Yes, how can it be done and any advice to go for it or not
I want to buy one and send to Nigeria, most I see are grid-tie (Sunny Boy SMA)
Thank you guys for the good works you are all doing

Like he mentioned, running it in Nigeria for home wouldn't be great as it requires a constant grid supply (NEPA/ generator) to work. Nigeria don't have that supply in much quantities.

So you are better off buying SMA, but instead of the grid tie type, buy the hybrid type that requires battery as it's best for use in Nigeria.

I know you must've seen a lot of grid tie outside Nigeria, people often get it to reduce their utility bill. Not something you'd bring into a country with epileptic power supply.

A lil note, if buying from North America, just ensure output voltage is 230v 50Hz and not 120V 60Hz.

Cheers.

BigDickProblems:
Some versions of Li-ion batteries now have a USB C port
Source: https://x.com/mkbhd/status/1929608426268598692?s=46

These batteries full AliExpress. Surprise MKBHD is just seeing it.

peropoliet:
What does this mean

Your package is in Nigeria. Maybe go and pick it.

AndroBlaze:
Could we be in the last days of lithium? Heavier but possibly cheaper batteries have started their march in the battery capital of the world.

https://www.bbc.com/future/article/20250530-how-electric-scooters-are-driving-chinas-salt-battery-push

Still early days. Lithium is just making inroads. Will there be new tech? Of course, yes. Will they beat the present lithium tech? He|| no!

ask4bk:


Now permit me to sincerely seek your advice.
Would you advice me to constantly run my deep freezer, refrigerator, occasional washing machine and blender on the 6kw Growatt inverter (from fouani) in a dusty environment of far northern Nigeria with constant 40ºc temperature?

If you think it's OK, I'll get it. If not, give me a better alternative.

Every once in a while use a dust blower to get dust off of it.

This is applicable to any inverter you buy as too much dust on electronic components leads to excessive heat and eventual thermal runaway.

fuckboys:
Today's sun is mad. Battery got full under 3hrs.

It's Sun day

ask4bk:
We Nigerians praising inverters like Growatt, SRNE etc which are cheap and high frequency shows our shallowness in good solar applications..

Growatt in the west is meant for the poor who can't afford solid inverters and for 80% s they die on them after 18 months or 2 years.

Laughing in Growatt that is 6 years old this year.

Guess my friend is the "lucky" 20%.

isangjohnson:
Has anyone here mixed V3 280ah cells with the V1 280ah cells?

I need a practical experience.

I know for sure that the internal resistance will differ but I don't know how wider the difference might be.

If there's no other way, mix. What's the worst that could happen?

aaforke:
Where can one get this power meter.
I don find am taya

Someone is literally selling it in a post above.

Rumplesteelskin:




Did a drain test, still stuck at 26.8-27.2 V after hours of charging. Did the final test today, disconnected the inverter from the battery, and the inverter went straight to 29.1 V, while the charge controller that is connected to the battery shows 26.8 V. So, I have ruled out the inverter limiting the charge current

What was the charging current at that 26.8v?

GloryJoyeux:


Hi,

The deyri has jk bms, and the cworth has a different bms. So the first RPi with solar assistant is communicating with the JKbms of the deriy, the inverter and the victron smart shunt.

The second Orange Pi running SA is communicating with the cworth battery via CAN2.0, I couldn’t get cworth to communicate via rs485, it seems they use different communication protocols via rs485, but the CAN uses standard protocol.

Ok, now that clarifies things.

Your GUI looks great. Well done.

Dabss:
go with mono facial. The bi-facial is only 615w when mounted correctly where it can get the reflected sunlight rays. If you mount on the roof you won’t get 615W. Just go with mono facial either ways.

That's not really accurate . You get more than 615w if mounted on the ground in a way sun gets to the underside. You could get up to 720w or more from this 615w PV when ground mounted and appropriate conditions met.

https://nairaland.macsoftware.info/390522/solar-energy-complement-fta/1992#135070541

GloryJoyeux:
Final Setup


Raspberry Pi 5 (running Solar Assistant)
Orange Pi 3 (running Solar Assistant)
Windows NUC (running Home Assistant)
Starlink for home internet
GLi.net router

Why do you have two raspberry pi running solar assistant?

dunmorrix:
They too, they use third party shipping company just like the way importers do and now the item is no where to be found.

The third party shipping company is asking for container number and tagging lists.

They told me to cancel the dispute, yet third party shipping company can't find my package, while the third party shipping company in china is saying the package is in there Lagos warehouse.

Have you gone to the Lagos warehouse

omotoda:


This is a terrible design. Someone should advise them to improve on this.I those days , I use my PWM charge controllers to monitor battery voltage without connecting to PV

Idea is to save energy during nighttime.