The voltage drop is normal for tubular but yours seems kinda peculiar

There could be a chance that the water level is too high or the wrong electrolyte is used.

joseph4sales:
Good afternoon house

I need advice on this issue please

I recently got a pure sine wave inverter 2.5KVA with 2 220ah Tubular Batteries

When fully charged it displays on the inverter 27.7v, but immediately i start using it, it drops to 25.4v and within 30mins, it drops to 24.3v then to 24.1v within an hour. Now, it lasts for 24hours on same load which is, 2,55w standing fans, 90w tv and lightnings 30w

My installer is saying there's nothing wrong with it as long as it doesn't beep low battery, also i noticed that water drips out from one of the batteries

I want to know why the voltage drops so low on less than 300watts

solareclips:
Please I need where I can repair ipower x inverter, aside from there office as they said they don't have part available
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joseph4sales:
Good afternoon house

I need advice on this issue please

I recently got a pure sine wave inverter 2.5KVA with 2 220ah Tubular Batteries

When fully charged it displays on the inverter 27.7v, but immediately i start using it, it drops to 25.4v and within 30mins, it drops to 24.3v then to 24.1v within an hour. Now, it lasts for 24hours on same load which is, 2,55w standing fans, 90w tv and lightnings 30w

My installer is saying there's nothing wrong with it as long as it doesn't beep low battery, also i noticed that water drips out from one of the batteries

I want to know why the voltage drops so low on less than 300watts

The distill water drop may be as a result of over guaging of battery water. When it is charging, it bubbles inside because of gas escape this might result to the water drop but after a while it will stop when it has gotten to the right level.

But I need to get the explanation of the voltage drop after it is fully charged and in use.

olopan:
The voltage drop is normal for tubular but yours seems kinda peculiar

There could be a chance that the water level is too high or the wrong electrolyte is used.

Thanks a lot, So for the voltage drop, should i just consider it normal, owing to the fact that it doesn't beep low battery?

The lowest i have seen it go is 23.4V after 26hrs usage

As we speak, its on 24.1V as attached

There are lots of videos on YouTube you need to watch and articles u need to read for you to understand things.
V-volt
A- amp
Ah- ah
W- watt
Wh- wh
U see those LA battery u dey see 200ah. It's 200a. Dey are not 200ah. 200ah means d battery can do 200a in 1 hr. Check basic electricity videos on YouTube. Read article on electricity and DC applications. All these will b made clear

ojtech8291:
I don't understand what you are stating here as a unit of battery. Unit of battery is AH. When you multiply V by AH you have VAH. Note that VA= W, so you have WH, When in 1000 up wards it becomes KWH for battery. Without the H there you are still not referring to battery.

joseph4sales:
Thanks a lot, So for the voltage drop, should i just consider it normal, owing to the fact that it doesn't beep low battery?

The lowest i have seen it go is 23.4V after 26hrs usage

As we speak, its on 24.1V as attached

Snap the batteries, especially the one leaking. Showing all the guages on top also.

samnaija:


Snap the batteries, especially the one leaking. Showing all the guages on top also.

the one on the right is the one leaking

joseph4sales:
the one on the right is the one leaking

from your gauge it shows that the acid water level is okay. it could be as a result of acid water was over gauged, it is dripping to get to level and it will stop.

joseph4sales:
the one on the right is the one leaking

Your batteries guages are looking full, likely there is overfill in some cells, more distilled water. It will eventually balance.


It seems you don't use solar to charge your batteries only inverter.
Well if so, you cannot only rely on your inverter to give you a true picture of the voltage of your batteries. It's likely wrong. Usual cases the inverter gives low and false reading,

Even a charge controller without a shunt, will not give you actual voltages of your batteries correctly.

My advice get a voltmeter to give you actual voltage and idea, the paste your results , compared with your inverter voltage readings at the same time.

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This 23.4V is based on while loaded right?

Also I believe your electrolyte mixture is the reason for your quick sag.

But since it delivers, then fine.

But if not satisfied, then take them to the company to demand for replacement

joseph4sales:
Thanks a lot, So for the voltage drop, should i just consider it normal, owing to the fact that it doesn't beep low battery?

The lowest i have seen it go is 23.4V after 26hrs usage

As we speak, its on 24.1V as attached

olopan:
This 23.4V is based on while loaded right?

Also I believe your electrolyte mixture is the reason for your quick sag.

But since it delivers, then fine.

But if not satisfied, then take them to the company to demand for replacement

thanks for your update. Yes, the 23.4v is on load of an average of 200-280watts. I have never heard any Battery low beep signal since over a month i have been using it. It lasts more than 24hrs during when phcn rations our light and we are off.
I am just scared i am not discharging the battery too low so as not to get it damaged .

Battery name and inverter is Lento 220Ah Tubular

gadgetplanetng:
Where did you get the Bosch?
Need one

I got it from the attached.

Hope this helps.

Good day solar gurus. Please i noticed of recent that my solar battery (two 12v200AH) after showing fully charged at 100% will suddenly start dropping down to around 70% by evening even when the solar system is off. As such, it doesn't last whenever I start using it. Please what could be the problem? I am using a 2000va/24v smarten inverter. The batteries are not up to a year & it was serving me very well before now. I also noticed the small fan at the back of the inverter is not turning & it also shows Mains not available

Good Day All,
I got the Inverter below from Konga about two years ago and it has been working fine. Last week I discovered that the Inverter is not more supplying AC current when powered on but the charging system is still working. Pls where can I repair it?

ajabani4allah:
Good Day All,
I got the Inverter below from Konga about two years ago and it has been working fine. Last week I discovered that the Inverter is not more supplying AC current when powered on but the charging system is still working. Pls where can I repair it?

Take it to Idioro Mushin they'll fix it there...

Since u can't open the inverter yourself. It's advisable you take it to inverter repair center. N one of your battery is bad already. My guess is you don't do 50% DOD.

Eazeee:
Good day solar gurus. Please i noticed of recent that my solar battery (two 12v200AH) after showing fully charged at 100% will suddenly start dropping down to around 70% by evening even when the solar system is off. As such, it doesn't last whenever I start using it. Please what could be the problem? I am using a 2000va/24v smarten inverter. The batteries are not up to a year & it was serving me very well before now. I also noticed the small fan at the back of the inverter is not turning & it also shows Mains not available

Jefferyzz:
There are lots of videos on YouTube you need to watch and articles u need to read for you to understand things.
V-volt
A- amp
Ah- ah
W- watt
Wh- wh
U see those LA battery u dey see 200ah. It's 200a. Dey are not 200ah. 200ah means d battery can do 200a in 1 hr. Check basic electricity videos on YouTube. Read article on electricity and DC applications. All these will b made clear

Are they not people that made those videos? There is no way you talk about battery without putting hour(hr).
Ampere hour (Ah or amp hr). This is a unit of electric charge that is used to define the capacity of batteries. A steady flow of 1 ampere for 1 hour (straight) is 1 Ah. The equivalent is 3600 coulomb.

joseph4sales:
Thanks a lot, So for the voltage drop, should i just consider it normal, owing to the fact that it doesn't beep low battery?

The lowest i have seen it go is 23.4V after 26hrs usage

As we speak, its on 24.1V as attached

the battery is likely damaged, or has wrong/low sg electrolyte. 2ndly the inverter you are using is not designed to charge flooded batteries optimally. its not beeping low battery...cos the load you have on it is very small. try adding a fridge/freezer on it and you will hear the low battery beeping within a short time.

lastly most of these dumb/non smart inverters have low battery beeping preset to come on at 21v....and by then irreversible damage has already occured in the battery. if you want your batteries to last long. try not to let it go below 12v...or 24v for a 2 battery system

D

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Is this type of charge controller suitable to charge a 5kw/24V lithium battery

You will need 2 of those if your panel is above1400w

emmy9500:
Is this type of charge controller suitable to charge a 5kw/24V lithium battery

Jefferyzz:
You will need 2 of those if your panel is above1400w

My panel is less than 1200

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Jefferyzz:
W=V*A
12v*220a=10,560w or 10.56kw
Note that cause u physical have 4 12v batteries doesn't mean you have 10kwh as most lead acid is rated 0.3-0.6c which means ur 10kw battery can safely pull 3-6kwh out of the 10kw you have on ground.
Kw- kilowatt
Kwh- kilowatt hour

0.3 - 0.6c

Please what's this c?