fbtowner:


I just feel a little uncomfortable to have something still on while I’m out. I could be out for days. I will just find a connector I can use to unplug the battery if I’m going out for long.

I don’t really like the product as you can’t even know your battery level. I was looking for luminous but it was too expensive then the guy persuade me to buy this smarten.

Thanks.

oweniwe:


Battery level dey show, though it used to intermittent with other details. But I must confess, I don't like the dull yellow mono-color interface & Only one button to press.

Just put a breaker between the battery and the inverter. 3-5k should suffice. If you will not be indoors for long, turn down the breaker switch to cut off power from the battery completely.

Blankstare:


Good day.. pls did you use your nija card to pay? I have been trying to use my gtb and UBA to pay but to no avail...

bassdow:


it's known fact no Nigerian issued debit cards works internationally. What most people do is, open a dormiciliary account, then request a debit card for such account. Alternatively, request for a dolar capable debit account. Can't recall what some banks call them.

That's what most use these days, except you have someone trust worthy enough to help you BUT why take such risks when you could get one yourself.

fbtowner:


You are absolutely correct, the Breaker will do the job. As for the battery level. I think the battery volt is where they expect us to know the battery level because the one I have doesn’t show any thing related to battery level and it has only one button(power) also, there’s a particular section of the display that shows

Battery volt 24.6
Load 003%

I read somewhere battery can be at 11v(drained) and up to 13v(charged). I might be wrong.

Parser:
I greet everybody. Officially team 1KVA courtesy powerbox. com. ng. 2 150W felicity solar panels connected in parallel and 1Kwhr Lithium battery.

Would like to upgrade the solar panels to something near 1KW as I need more current to suffice for additional load and remainder for battery charge during the day but for now I dey enjoy the setup for my load need and also learning from other ppl's experience in the thread.

abbeymighty:
Good day all, please can i connect 4nos of 300watts panels to a 24v , 3kva hybrid inverter that was writing rated power 600watts

abbeymighty:
Good day all, please can i connect 4nos of 300watts panels to a 24v , 3kva hybrid inverter that was writing rated power 600watts

de3lar:


How much did you get it for?

I mean from power box dot com do ng

Braaad:
Hello house,

I greet everybody...

Please has anyone used this particular YOHAKO lithium batteries before (9.8kwh/48V)??
What are your experience with it?
Does it meet up to the rated capacity?

Please I need a very honest review from installers and end users in the house including engineers and technicians.

Marketers should stay off.

mctfopt:


If it's anything like their solar charge controller, I'll recommend you try another make. Well done.

Braaad:
Thanks for your response sir.

I appreciate.

I currently have very serious issues with the batteries I bought from YOHAKO and I want to be sure the issues are not peculiar to me as the dealer wants to make it seem. I bought 5units of those batteries. I used 4units for a setup, and they cannot support 2000w of load for 10hrs.

Once the sun goes down by about 5pm, the battery drops immediately.

I want to have more feedback so I will be sure this is not peculiar to my case only.

isangjohnson:

I assumed the 5units of the battery is lithium.

How long have you used the 4units?

I also assumed the 1unit left was attached to another system.
Is that one behaving the same way?
What is the battery capacity?
Giving more information on the system will help to trace the cause.

Dam5reey:
Available

durodee:
Good evening peeps, I need to freight some cabinets/beds/furnishings from a friend in Nova Scotia Canada to Nigeria; can you advice a good freight service that can do door to door pickup and delivery?
Thanks

what's COST of Acquisition of those from CaNaDa, VS cost of kukuma buying another here ?

Braaad:
Thanks for your response sir,

The 5units are lithium. They were to go into the same system but one of it had a defect, the cells inside shifted on their mounting and was shorted to the casing of the batteries.(the dealer acknowledged it was a manufacturing defect for this type of their batteries)
The batteries are rated 9.6kwh on the nameplate -the dealer says it is 10kwh- it is mated to a 18kw inverter and 13.2kw of solar with remote monitoring.




The batteries were bought February this year. And we're integrated in installation by July this year.


All other aspects of the system are working pretty good, just the battery.

Braaad:
Thanks for your response sir.

I appreciate.

I currently have very serious issues with the batteries I bought from YOHAKO and I want to be sure the issues are not peculiar to me as the dealer wants to make it seem. I bought 5units of those batteries. I used 4units for a setup, and they cannot support 2000w of load for 10hrs.

Once the sun goes down by about 5pm, the battery drops immediately.

I want to have more feedback so I will be sure this is not peculiar to my case only.

bassdow:

Does the battery ever get 100% charged ?
Could you by 4pm today, confirm if battery is 100% charged ? if NOT 100% charged, maybe because it's in use, then tomorroow, disconnect all load, and charge and take note of it's capacity by latest 4pm.

We need know firstly, if those batteries ever gets charged completely daily.

When things happens this way, it could be the charging system, or the batteries but unless you carefully investidgate, you can't tell for sure.

Who installed the setUp ? What has the person got to say ?

dacool1:



I might be wrong, but I don't think anything is wrong with your batteries.

Most of these battery packs are over rated capacity wise. Also, your batteries won't discharge 100%, cable loses etc.

Plus your inverter is a large one, its self consumption will be great especially if it's transformer based. Get a meter to measure the total amps drawn from the battery banks to be sure.

Braaad:
Thanks for your response sir,

The 5units are lithium. They were to go into the same system but one of it had a defect, the cells inside shifted on their mounting and was shorted to the casing of the batteries.(the dealer acknowledged it was a manufacturing defect for this type of their batteries)
The batteries are rated 9.6kwh on the nameplate -the dealer says it is 10kwh- it is mated to a 18kw inverter and 13.2kw of solar with remote monitoring.

The batteries were bought February this year. And we're integrated in installation by July this year.


All other aspects of the system are working pretty good, just the battery.

isangjohnson:

You really need to take your time and check your setup.
In my opinion, the inverter and pv do not match the the battery capacity.
1. Putting 13.2kw pv for 10kwh battery bank plus day time loads require constant monitoring even when all the charging parameters has been set correctly. You never can't tell when the peak sun will pull down more power and when the battery will heat up.... Don't forget most of these readymade coupled batteries do not have enough holes for ventilation plus the area we usually placed our batteries.
My experience yesterday: After carrying out capacity test of 160ah 48v lifepo4 battery I coupled for a friend, I started charging the battery all over again, pumping about 2000w into the battery while other house loads took their share of power from my 4.05kw pv. In the afternoon, I realized the Jbd bms temperature was 37°C which is nothing to worry about but I wasn't comfortable with it as the bms didn't come with an external temperature sensor. I quickly switched on my Victron Smart BMV and saw 80°C. Immediately, I switched on the 1Hp AC to reduce the amps that were going into the battery and the temperature started coming down to recommended value. If I was to rely on the bms, something may have gone wrong...
The main killer of lithium and lead acid battery is HEAT.
We should not also forget that most of these readymade coupled batteries do not have smart bms with bluethooth and most of the bluethooth do not have external temperature sensor.

2. You may not have any issue with your batteries. I guess 9.6kwh is about 195Ah 48v.
If I'm right, then the 2000w loads on the battery can only sustain you for about 5 hours when the battery is fully charged to 55.2v (3.45v each cell).
If the idle power consumption of the 18kw inverter wasn't factored into the 2000w, then expect about 4 hours run time from the fully charged battery.
I MAY BE WRONG.

Juror:

I think he used 4 units for the setup

isangjohnson:

You really need to take your time and check your setup.
In my opinion, the inverter and pv do not match the the battery capacity.
1. Putting 13.2kw pv for 10kwh battery bank plus day time loads require constant monitoring even when all the charging parameters has been set correctly. You never can't tell when the peak sun will pull down more power and when the battery will heat up.... Don't forget most of these readymade coupled batteries do not have enough holes for ventilation plus the area we usually placed our batteries.
My experience yesterday: After carrying out capacity test of 160ah 48v lifepo4 battery I coupled for a friend, I started charging the battery all over again, pumping about 2000w into the battery while other house loads took their share of power from my 4.05kw pv. In the afternoon, I realized the Jbd bms temperature was 37°C which is nothing to worry about but I wasn't comfortable with it as the bms didn't come with an external temperature sensor. I quickly switched on my Victron Smart BMV and saw 80°C. Immediately, I switched on the 1Hp AC to reduce the amps that were going into the battery and the temperature started coming down to recommended value. If I was to rely on the bms, something may have gone wrong...
The main killer of lithium and lead acid battery is HEAT.
We should not also forget that most of these readymade coupled batteries do not have smart bms with bluethooth and most of the bluethooth do not have external temperature sensor.

2. You may not have any issue with your batteries. I guess 9.6kwh is about 195Ah 48v.
If I'm right, then the 2000w loads on the battery can only sustain you for about 5 hours when the battery is fully charged to 55.2v (3.45v each cell).
If the idle power consumption of the 18kw inverter wasn't factored into the 2000w, then expect about 4 hours run time from the fully charged battery.
I MAY BE WRONG.

Braaad:
Thanks for your response sir,

The 5units are lithium. They were to go into the same system but one of it had a defect, the cells inside shifted on their mounting and was shorted to the casing of the batteries.(the dealer acknowledged it was a manufacturing defect for this type of their batteries)
The batteries are rated 9.6kwh on the nameplate -the dealer says it is 10kwh- it is mated to a 18kw inverter and 13.2kw of solar with remote monitoring.

The batteries were bought February this year. And we're integrated in installation by July this year.


All other aspects of the system are working pretty good, just the battery.