NewStats: 3,261,641 , 8,174,610 topics. Date: Thursday, 29 May 2025 at 09:44 PM 5c136z

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CaptainZubi:
I noticed my inverter starts beeping and eventually turns off when there is little sunlight for as low as just 10 minutes (when gate and compound lights are on). When tv and fan is also on, it starts beeping in as low as just 2 minutes and then goes off. In a nut shell, e wan be like na when sun dey blaze e dey function well.

Then after careful thought, I decided to disconnect the MPPT charge controller and connect the batteries and solar wires directly by bying the charge controller. Omo rain fell for 2 hours and I still had light with TV , fan and every every on. If it was before, the inverter for don off coz there is little sunlight. What could be the issue and what could be wrong? I'm a novice on solar energy but it seems like the charge controller is not allowing the batteries to charge properly. That's what I'm thinking.


Is this also a good or bad decision?

Yes, it is not the best decision to connect solar s directly to a battery. A solar charge controller regulates the voltage and current from the solar s to prevent overcharging, thereby extending the battery life.

It seems like the charge settings on the charge controller are incorrect or it is a defective unit.

Please share your charge controller model and your battery type.

Obnoxious2001:

Set as defined. I think option 05 in the settings menu

Then set float and buck to 56.5 I think option 27&28

Then set your low battery cutoff option 29.


Please use manual to confirm what I typed above...

i dont get how to enter setting

Hero2t:


Yes, it is not the best decision to connect solar s directly to a battery. A solar charge controller regulates the voltage and current from the solar s to prevent overcharging, thereby extending the battery life.

It seems like the charge settings on the charge controller are incorrect or it is a defective unit.

Please share your charge controller model and your battery type.

Good afternoon sir. The charge controller is as seen in the first pics.i have disconnected the solar and battery wires that's why it is not displaying.

The second pics is the kind of battery I have (2 units. )

Obnoxious2001:

Set as defined. I think option 05 in the settings menu

Then set float and buck to 56.5 I think option 27&28

Then set your low battery cutoff option 29.



Please use manual to confirm what I typed above...

Cutoff to 29v, sure its a typo. Your low voltage disconnect sud be at 48v

toscotech:


i dont get how to enter setting

How to set the settings are in ur inverter manual. Press the enter button for a few seconds to enter the settings page and then ffl the manual

CaptainZubi:
I noticed my inverter starts beeping and eventually turns off when there is little sunlight for as low as just 10 minutes (when gate and compound lights are on). When tv and fan is also on, it starts beeping in as low as just 2 minutes and then goes off. In a nut shell, e wan be like na when sun dey blaze e dey function well.

Then after careful thought, I decided to disconnect the MPPT charge controller and connect the batteries and solar wires directly by bying the charge controller. Omo rain fell for 2 hours and I still had light with TV , fan and every every on. If it was before, the inverter for don off coz there is little sunlight. What could be the issue and what could be wrong? I'm a novice on solar energy but it seems like the charge controller is not allowing the batteries to charge properly. That's what I'm thinking.


Is this also a good or bad decision?

Better go take that off unless you want to ruin your batteries.

CaptainZubi:
I noticed my inverter starts beeping and eventually turns off when there is little sunlight for as low as just 10 minutes (when gate and compound lights are on). When tv and fan is also on, it starts beeping in as low as just 2 minutes and then goes off. In a nut shell, e wan be like na when sun dey blaze e dey function well.

Then after careful thought, I decided to disconnect the MPPT charge controller and connect the batteries and solar wires directly by bying the charge controller. Omo rain fell for 2 hours and I still had light with TV , fan and every every on. If it was before, the inverter for don off coz there is little sunlight. What could be the issue and what could be wrong? I'm a novice on solar energy but it seems like the charge controller is not allowing the batteries to charge properly. That's what I'm thinking.


Is this also a good or bad decision?

You are at risk of fire outbreak from ur batteries by bying the charge controller.
You didnt mention the wattage and nos of s plus how they are arranged either in series or parallel?

Have you advised him on what to do to make his solar work more effectively and efficiently?
There is really no difference between you solar technicians and car mechanics. It's either you won't tell a car owner the root cause of his problems or you use a problem to create another problem so that they keep coming and you keep feeding fat from them....

Drgreatone:

You are at risk of fire outbreak from ur batteries by bying the charge controller.
You didnt mention the wattage and nos of s plus how they are arranged either in series or parallel?

Omo I don't really have a hands on answer to the questions as I'm a big novice. I just told the installer what I needed. He gave me the estimate but I can't the indept details.

But the s are 4 in number. They are arranged vertically side by side.

CaptainZubi:
I noticed my inverter starts beeping and eventually turns off when there is little sunlight for as low as just 10 minutes (when gate and compound lights are on). When tv and fan is also on, it starts beeping in as low as just 2 minutes and then goes off. In a nut shell, e wan be like na when sun dey blaze e dey function well.

Then after careful thought, I decided to disconnect the MPPT charge controller and connect the batteries and solar wires directly by bying the charge controller. Omo rain fell for 2 hours and I still had light with TV , fan and every every on. If it was before, the inverter for don off coz there is little sunlight. What could be the issue and what could be wrong? I'm a novice on solar energy but it seems like the charge controller is not allowing the batteries to charge properly. That's what I'm thinking.


Is this also a good or bad decision?

This na real example of the saying “You dey play with fire”

CaptainZubi:

Good afternoon sir. The charge controller is as seen in the first pics.i have disconnected the solar and battery wires that's why it is not displaying.

The second pics is the kind of battery I have (2 units. )

u are making use of addo battery, how good is it?

Drgreatone:

How to set the settings are in ur inverter manual. Press the enter button for a few seconds to enter the settings page and then ffl the manual

i dont have the manual again thats why i just need help

toscotech:


i dont get how to enter setting

Long hold the enter button.

Try and get the manual

Obnoxious2001:

Long hold the enter button.

Try and get the manual

the owner of the inverter said he did not see it again and he as look everywhere

but have try to enter the menu but all the option that is there is many dont know how to go about it

and the installer that did it also dont no much about the inverter and how to set all this charging parameter

i will be very happy if i can see solution because nah me tell the person that he should go for lithium battery and i also dont know much about it because nah tubular battery i they used

toscotech:


the owner of the inverter said he did not see it again and he as look everywhere

but have try to enter the menu but all the option that is there is many dont know how to go about it

and the installer that did it also dont no much about the inverter and how to set all this charging parameter

i will be very happy if i can see solution because nah me tell the person that he should go for lithium battery and i also dont know much about it because nah tubular battery i they used

I have it, message me on Whatsapp

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toscotech:


the owner of the inverter said he did not see it again and he as look everywhere

but have try to enter the menu but all the option that is there is many dont know how to go about it

and the installer that did it also dont no much about the inverter and how to set all this charging parameter

i will be very happy if i can see solution because nah me tell the person that he should go for lithium battery and i also dont know much about it because nah tubular battery i they used

Enter Google with ur smartphone, search for the manual of the inverter/charge controller. Click on any available search result that match ur device. Good luck.

Vianna:
Have you advised him on what to do to make his solar work more effectively and efficiently?
There is really no difference between you solar technicians and car mechanics. It's either you won't tell a car owner the root cause of his problems or you use a problem to create another problem so that they keep coming and you keep feeding fat from them....

Ok, I was a bit surprised no one replied to your post earlier, but on second thought I realised why.

Firstly, 90% of the people that reply to solve problems here and give fixes are hobbyist and enthusiasts, I don't know anyone who is a "solar technician" and very few who make a living solely from this on here.

This thread is actually more than 15 years old and when I started paying interest in it as a novice ( 9 yrs ago, my professional background is finance), there was one advice they gave anyone who had questions, go and start from the first page and then bring your problem to the forum.

So newbies are very lucky as no one is saying that now as the thread is almost 2000 pages long. This does not change the fact that a lot of the people who solve these problems here have gone through the 2000 pages and used their time and life experiences to help others with little to no financial gain to themselves.

So please if you have a problem, be patient, no one is being paid to give advice that will cost you proper money if you sought a so called professional. In fact most of the so called "technicians" I have met in person are pretty rude and less knowledgeable than even an average enthusiasts on here.

If your post was about the guy who decided to by his solar controller and connect his s directly to his battery, it is a CAPITAL NO NO and he needs to disconnect it first for the battery and his own safety. The controller will likely be the problem, he needs to try changing the settings or get a proper controller. I am happy the guy is exercising patience and decorum while responding to people who are trying to help him.

Good evening. Is there a 7.5kwh battery on 24v for my 4.2kva inverter? I don't want to change my inverter but want to buy the lithium battery with a higher capacity. Is it possible cos the ones I'm seeing is 5kwh on 24v.

Bruteality1:
Good evening. Is there a 7.5kwh battery on 24v for my 4.2kva inverter? I don't want to change my inverter but want to buy the lithium battery with a higher capacity. Is it possible cos the ones I'm seeing is 5kwh on 24v.

Yes there is. Deriy has 7.2kwh

Drgreatone:

Cutoff to 29v, sure its a typo. Your low voltage disconnect sud be at 48v

Obviously that should be typo..

Guys check us out ... We install only power station only please!

As said earlier, I disconnected the charge controller earlier this morning around 7am and I'm still blazing my solar with all household equipments on as I type. Before now, when the charge controller was still connected ,

1. The inverter starts beeping and goes off if cloud manages to cover sunlight for as little as 3 minutes. I have to start reducing load instantly so it won't go off. I.e I instantly swith off my TV , fan, PlayStation etc.

2. I no fit even use am for night. Under 2 minutes it has gone off without load even on it. The charge controller will be indicating that the battery is low..


All these while I always thought it was my battery that was bad but seems its not. There is simply something wrong somewhere.

Picture of the charger controller attaches.

Bruteality1:
Good evening. Is there a 7.5kwh battery on 24v for my 4.2kva inverter? I don't want to change my inverter but want to buy the lithium battery with a higher capacity. Is it possible cos the ones I'm seeing is 5kwh on 24v.

@valto

Bruteality1:
Good evening. Is there a 7.5kwh battery on 24v for my 4.2kva inverter? I don't want to change my inverter but want to buy the lithium battery with a higher capacity. Is it possible cos the ones I'm seeing is 5kwh on 24v.

24v 7.5kwh , 24v 8.5kwh , 24v 17kwh available

whatsapp 08020574628 or telegram@ValtechEnergy

Pse, who knows the current price of Victron Multiplus Inverter 5kva 48v and where I can buy it?

You're issue is your charger controller.

1. It is either not charging your battery well as a result of wrong settings or connection or,

2. The charge controller is bad.

If you can afford it get a good charge controller (you can go for powmr if your on a budget or the likes of Felicity, snre, Xtra Power etc) and set the charging profile according to your battery specs.

Ensure the charge controller has equalization features for lead acid (flooded) battery, and set it to run the equalization process once a month or so depending on your usage (you can read up lead acid battery equalization on Google for better understanding).

CaptainZubi:
As said earlier, I disconnected the charge controller earlier this morning around 7am and I'm still blazing my solar with all household equipments on as I type. Before now, when the charge controller was still connected ,

1. The inverter starts beeping and goes off if cloud manages to cover sunlight for as little as 3 minutes. I have to start reducing load instantly so it won't go off. I.e I instantly swith off my TV , fan, PlayStation etc.

2. I no fit even use am for night. Under 2 minutes it has gone off without load even on it. The charge controller will be indicating that the battery is low..


All these while I always thought it was my battery that was bad but seems its not. There is simply something wrong somewhere.

Picture of the charger controller attaches.

@toscotech @Obnoxious2001
I have attached the settings page

Modified

The image is blurry.

- Long press the enter button

- Keep pressing the down button till u get to number 5. That's battery type. Press enter. Use the down button to scroll till u see USE, press the enter button on it.

- it will take u back to number 5, use the down arrow to keep scrolling till u get to 26 (bulk charging voltage). Press the enter button to enter and use the up and down arrow to increase or decrease.
Set as per your battery spec. Maybe 56.4
Press enter again.

- It will take you back to number 26. Use the down arrow to scroll to 27 (floating charging voltage). Press enter. Set it like u did for bulk above. Press enter.

Scroll to 28 and set the low dc cut off voltage.

Note:
I am not using a 48v system so I don't know the exact values. Others can help