NewStats: 3,262,153 , 8,176,256 topics. Date: Sunday, 01 June 2025 at 01:15 AM 4d5f60

Please people that are experienced in shipping, what's the average it can cost to ship per cubic meter for a reliable and cheap shipper. Also, does any one here have experience with Air freight ? What's a cheap and reliable rate per kg anyone here has used.

Is anyone using a 12V Sako hybrid inverter with a custom lithium battery build? If so, what is your optimal custom charge profile?

Jk 4-8s 100a will be a easy for u to get. It s both li-ion and lifepo4.

Intellab:
I need 7S BMS 80A. Anyone selling?

Hello guys, please I made this post about a month ago and I didn’t get much engagement as to what could be the issue… I have been observing the batter for the last one month and it has gotten worse. Now the battery doesn’t charge above 58% as at yesterday. I have called the technician and he doesn’t seem to know what is wrong either. I have only used the battery for less than 2 months now and I don’t know what the issue could be… Please anyone who can explain to me. I’m thinking that it’s probably an error from the factory and the technician has informed them about returning it.

Tucode:
Hello guys… I got an SMS Gold 15kwh lithium battery in mid December and it’s connected to a 10kwh sms hybrid inverter with 20 550w solar s. I have been using the system without any issues for a month plus until last week when I noticed that it does not charge beyond the 5th bar (the battery had 6 bars). About 5 days ago, it charges up to 85% before it stops charging, 2 days ago it charged up to 82 before stopping, yesterday it stopped charging at 77% despite the fact there was still peak sunlight around 1.30pm. I observed that once the battery gets to the 5th bar, the PV immediately drops to like 200w from like 3500w just like it does when the battery is already fully charged. What could be the cause of this? Are the battery cells being damaged or what? Please I need help with this. It’s been frustrating for me because there’s been peak sunlight where I am and my battery will just stop charging around 1pm.

Enter area, oshodi, the electrical section, show it to any shop owner there, they will point you to who dey sell am.

TSHIRT2:
Where can I get this

What voltage is that 58%
If the battery is charged to the point it disables charging. Connect an AC watt meter to ur inverter output and see if u can pull anything close to 13kw b4 ur battery goes off. While draining ur battery, make sure both solar and AC charger are off. Let's see the result.

Tucode:
Hello guys, please I made this post about a month ago and I didn’t get much engagement as to what could be the issue… I have been observing the batter for the last one month and it has gotten worse. Now the battery doesn’t charge above 58% as at yesterday. I have called the technician and he doesn’t seem to know what is wrong either. I have only used the battery for less than 2 months now and I don’t know what the issue could be… Please anyone who can explain to me. I’m thinking that it’s probably an error from the factory and the technician has informed them about returning it.

Thanks for your response bro. But I honestly do not have the facility to do what you’ve asked. I’m not a professional technician, just a consumer. But the voltage according to the inverter is usually around 53.4V when charging cuts off.

Jefferyzz:
What voltage is that 58%
If the battery is charged to the point it disables charging. Connect an AC watt meter to ur inverter output and see if u can pull anything close to 13kw b4 ur battery goes off. While draining ur battery, make sure both solar and AC charger are off. Let's see the result.

Tucode:
Thanks for your response bro. But I honestly do not have the facility to do what you’ve asked. I’m not a professional technician, just a consumer. But the voltage according to the inverter is usually around 53.4V when charging cuts off.

Yeah, that's not good. 53.4v isn't anywhere 100% SoC.

Probably a balancing issue?

Could the problem be a BMS issue or the battery cells are dying? If it’s settings issue, it wasn’t like this after the connection initially. It just started abruptly or maybe I wasn’t observing it from the beginning coz the bars were always complete.

HeavenlyBang:


Yeah, that's not good. 53.4v isn't anywhere 100% SoC.

Probably a balancing issue?

Tucode:
Could the problem be a BMS issue or the battery cells are dying? If it’s settings issue, it wasn’t like this after the connection initially. It just started abruptly or maybe I wasn’t observing it from the beginning coz the bars were always complete.

LFP batteries should not Float.. you are using some default battery profile settings. Most installers dont change anything.

First Change the Setting 05 to USE..

Set your CV to 57.6V and FLV to 57.6V

Report back your findings

Ray1251:
Is anyone using a 12V Sako hybrid inverter with a custom lithium battery build? If so, what is your optimal custom charge profile?

Did you build yourself, you need to state the Capacity of your batteries.. there is 12V 10AH battery and can go higher as 1000AH..

I do charge with 0.2C using Grid and 0.4C using Solar.
14 ~ 14.4 depending on cable loss, for Bulk and Float, cut off 12V

3pcs of 15kwh 48v felicity lithium batteries, and 1pcs of 8kva felicity IVEM hybrid inverter ready for delivery to Uyo..

Pls keep placing your orders as i deliver nationwide..

Call/whatsapp me on 08168986461

But the issue isn’t that the battery floats. It doesn’t charge to the maximum capacity and it has been depreciating further on a daily. A month ago, it charged up to 82% and has been reducing and as at today, it stops charging at 58%. So it’s not floating, it’s reducing.

Dam5reey1:


LFP batteries should not Float.. you are using some default battery profile settings. Most installers dont change anything.

First Change the Setting 05 to USE..

Set your CV to 57.6V and FLV to 57.6V

Report back your findings

Tucode:
But the issue isn’t that the battery floats. It doesn’t charge to the maximum capacity and it has been depreciating further on a daily. A month ago, it charged up to 82% and has been reducing and as at today, it stops charging at 58%. So it’s not floating, it’s reducing.

Take the recommended action first lets even see your. Settings 05, Charge voltage, float and Cut off

Hello House,
Please where can I buy something like this Cworth energy E-BOX?

maklelemakukula:
please where did you get the box from and how much did it cost excluding the cells

Got the box for $170 excluding BMS and display.

Alibaba of course.

mctfopt:


Got the box for $170 excluding BMS and display.

Alibaba of course.

very cool, considering shipping fees and 3months wait ,my box price is not that bad then , i sell 350k, Excluding BMS and display

a much cheaper box is coming soon , will retail around 250k

mctfopt:


Got the box for $170 excluding BMS and display.

Alibaba of course.

How much for bms and display. How much for shipping cells and box and did you ship them as one package

How energy efficient is the powmr 100ah lithium battery compared to a regular 220ah tubular battery in of backup time and charging rate?
I'm asking cos it looks like they are sold for around same price bracket

JoeSef0:
How energy efficient is the powmr 100ah lithium battery compared to a regular 220ah tubular battery in of backup time and charging rate?
I'm asking cos it looks like they are sold for around same price bracket

1. The 220aH tubular has likely been mislabeled and isn't actually 220aH.
2. Even if it's actually 220aH, when you factor in DoD, usable energy is about the same as a 100aH lifepo4 battery
3. Lifepo4 handles 0.5c charge and discharge effortlessly, tubular is more around 0.2c
4. Lifepo4 will bounce back much better after being heavily discharged. Tubular won't.

There's no reason to buy a tubular battery in 2025. Even a cheap, Grade B lifepo4 battery is better than tubular.

This box is in the market, try Arena Oshodi.

Is a simple CHINT Breaker box. You ca always get the components inside and assemble them.

Ayomipoe:
Hello House,
Please where can I buy something like this Cworth energy E-BOX?

If the battery voltage usually gets above 53.4V before cutting off the charging, then your BMS is already in floating mode but the BMS is not calibrating the % counter to 100 before cutting off charging which is usually the issue with most of these BMS.

Tucode:
Thanks for your response bro. But I honestly do not have the facility to do what you’ve asked. I’m not a professional technician, just a consumer. But the voltage according to the inverter is usually around 53.4V when charging cuts off.

HeavenlyBang:


1. The 220aH tubular has likely been mislabeled and isn't actually 22aH.
2. Even if it's actually 220aH, when you factor in DoD, usable energy is about the same as a 100aH lifepo4 battery
3. Lifepo4 handles 0.5c charge and discharge effortlessly, tubular is more around 0.2c
4. Lifepo4 will bounce back much better after being heavily discharged. Tubular won't.

There's no reason to buy a tubular battery in 2025. Even a cheap, Grade B lifepo4 battery is better than tubular.

People must here the word if God in 2025. Surprisingly a good tubular is from 290k and above ,same as price of most 12.8v block LFP of 100ah.

Dam5reey1:
Monday Update..

No let anybody whyne you

morning chief, please I have custom built lfp battery with the upper bigger terminals as the inverter or discharge ports, and the small bottom terminals as the charging ports like solar and chargers.

It's a 105ah battery capacity, can i add a cworth 100ah lfp battery to it in parallel to increase my capacity? Can they be compatible?

If yes, which of the terminals do I run the parallel connection from?

60A EPEEVER MPPT solar charge controller
Price #415,000

Call or WhatsApp me on 09116033581

maklelemakukula:
Please people that are experienced in shipping, what's the average it can cost to ship per cubic meter for a reliable and cheap shipper. Also, does any one here have experience with Air freight ? What's a cheap and reliable rate per kg anyone here has used.

I used Chrisvicmall for non battery items successfully in the past but seems they are out of business permanently. Also, Selena from New Deriy gave me one Chinese number when I made enquiries last year but I no fit risk am.
Abeg anyone should share update on confirmed battery(cells) shipping agent to Nigeria.

Dam5reey1:
Monday Update..

No let anybody whyne you

Bro. Why can't Cworth put prices on their website and be transparent like Fouani? See the nonsense pricelist wey Sales rep send as I filled form on their website.

JJacko:
I used Chrisvicmall for non battery items successfully in the past but seems they are out of business permanently. Also, Selena from New Deriy gave me one Chinese number when I made enquiries last year but I no fit risk am.
Abeg anyone should share update on confirmed battery(cells) shipping agent to Nigeria.

Selina gave me the number too lol
What do you think about the deriy batteries

burnerr:
I don de tire at this point. Was using my inverter last night when nepa decided to show small love. See me see problem, I decided to go and recharge meter small. 5mins later I'm perceiving something burning and lo and behold the smell is coming from my setup.

Now I can't use the inverter with the battery together. Unit only supplies power if I'm going through PV/AC input to house, but shows error 09 (bus soft start failed) when I try to use battery.

Please who can assist me with this or knows any verified installer in Uyo to help look into this?

Your inverter has a short circuit, a damaged component.

To fix it, you will need to decommission and send to repair/service centre.

Obnoxious2001:


Your inverter has a short circuit, a damaged component.

To fix it, you will need to decommission and send to repair/service centre.

Wahala, I never even use this thing up to 2 weeks. Any idea what might have caused it?

burnerr:


Wahala, I never even use this thing up to 2 weeks. Any idea what might have caused it?

Sadly you were not in Lagos, my spirit was just interested in your set up from start..

If you can share some pictures of connections, it may help. Hybrid inverter are sensitive to wrong connections, and settings.

Good Morning..

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5kWh/48V BYD/Leoch Lithium Batteries
11.7kWh/48V Leoch Lithium Batteries
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Hybrid Inverters 5KW - 48V - single phase - Voltronic
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We believe that these high-quality products would be an excellent fit for your business. We would be thrilled to have you our list of esteemed dealers and work together to expand the reach of these products.
Please let us know if you are interested in exploring this partnership further. We also sell Perkins, and MWM Gas Generators ranging from 15kva-2500kva...

580w s = ₦150,000 EACH (10yrs Warranty and 25yrs Lifespan)

I had the same issue with my SMS inverter. I think some mosfets are bad,
I was able to fix mine under warranty. However, I took it to Alaba myself.

burnerr:
I don de tire at this point. Was using my inverter last night when nepa decided to show small love. See me see problem, I decided to go and recharge meter small. 5mins later I'm perceiving something burning and lo and behold the smell is coming from my setup.

Now I can't use the inverter with the battery together. Unit only supplies power if I'm going through PV/AC input to house, but shows error 09 (bus soft start failed) when I try to use battery.

Please who can assist me with this or knows any verified installer in Uyo to help look into this?