peaceland:
Dear all,
Please I need your help.
At inception I was using 2 sealed maintenance free batteries which I believed to be 200ah each.
After about 4 years of usage I opted for the 220ah luminous wet cell batteries which I bought at their authorized store so most likely correctly rated.
The challenge now is that it takes forever for the batteries to get charged using solar or generator.
Unlike before on a normal day the 2 batteries get fully charged by 3pm but now by same 3pm it is just 1 or 2 bars on the epever charge controller.
We did not touch any other thing other than change the batteries.
However, at the point of replacing the batteries the technician noted that the dry maintenance free batteries are actually lesser than the claimed 200ah each but I put that down to technician rivalry.
The batteries only get fully charged now with PHCN power, not even with generator like before.
I have 2 solar panels from inception.
Please is there a way I can determine what is wrong with the connection.
Is there a way to determine the ratings of the panels without having to go way up the roof?
Someone told me the panels may be inadequate which if true may mean that truly the initial batteries were lesser than expected 200ah.
Can the difference in 200 – 220ah be that significant to cause slow charging (assuming the first set were 220ah)
Please how can I narrow down the possibilities?.
Thank you dear all.

Panels are not adequate. Some suggest 400w panel per 200ah battery

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peaceland:
Dear all,
Please I need your help.
At inception I was using 2 sealed maintenance free batteries which I believed to be 200ah each.
After about 4 years of usage I opted for the 220ah luminous wet cell batteries which I bought at their authorized store so most likely correctly rated.
The challenge now is that it takes forever for the batteries to get charged using solar or generator.
Unlike before on a normal day the 2 batteries get fully charged by 3pm but now by same 3pm it is just 1 or 2 bars on the epever charge controller.
We did not touch any other thing other than change the batteries.
However, at the point of replacing the batteries the technician noted that the dry maintenance free batteries are actually lesser than the claimed 200ah each but I put that down to technician rivalry.
The batteries only get fully charged now with PHCN power, not even with generator like before.
I have 2 solar panels from inception.
Please is there a way I can determine what is wrong with the connection.
Is there a way to determine the ratings of the panels without having to go way up the roof?
Someone told me the panels may be inadequate which if true may mean that truly the initial batteries were lesser than expected 200ah.
Can the difference in 200 – 220ah be that significant to cause slow charging (assuming the first set were 220ah)
Please how can I narrow down the possibilities?.
Thank you dear all.

You did not say the amperage your inverter is bringing out, it seems inadequate also the solar panels.
You should be replacing into your batteries about 22 to 25 amps both from panels and inverters.. solution add more panels , likely add an external charger, tubular batteries are stubborn.

Okay. With the increasing price of cooking gas (24k per 50kg cylinder as at yesterday), up from 15k about 3 months ago and the likely increase in PMS price in the coming months, a total switch to alternative energy for more needs, locomotion/mobility and cooking included, seems a reasonable choice.

The one about locomotion is another big topic for another day, but I hope to include induction cookers as part of the appliances on solar, to be used majorly in the afternoons/towards evenings of course.

There is a dedicated, currently redundant, inactive 24v system made up of 1.8kw panel, 1.2kva 24v PSW inverter, two 60 amp MPPT and 120ah LFP. There is also an active system with similar specs but a 2kw inverter in place of 1.2kw and in place of 120ah, there is a 200ah LFP that handles two deep freezers and a small fridge, with occasional photocopier.

Meanwhile my plan is to upgrade any existing 24v system to 48v system if and when it becomes necessary to include more loads beyond what currently obtains on the active system(s).

Another option I considered was to perhaps keep the active 24v system running and then make a new 48v system a mainstream supply to the house. It will supply some appliances and also charge, thru AC chargers, the compartmentalized 12v and 24v systems during the daytime.

I feel I should upgrade the redundant 24v system components to 48v. Besides changing the inverter to 48v and getting a 48v LFP pack (I could do series connection if I'm able to get similar 24v from the same supplier), what other additions would I require to run an induction cooker efficiently? The cooker will have two burners and I hope energy efficient ones are already in the market (not sure) that will make things easier.

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ceaser:
Okay. With the increasing price of cooking gas (24k per 50kg cylinder as at yesterday), up from 15k about 3 months ago and the likely increase in PMS price in the coming months, a total switch to alternative energy for more needs, locomotion/mobility and cooking included, seems a reasonable choice.

The one about locomotion is another big topic for another day, but I hope to include induction cookers as part of the appliances on solar, to be used majorly in the afternoons/towards evenings of course.

There is a dedicated, currently redundant, inactive 24v system made up of 1.8kw panel, 1.2kva 24v PSW inverter, two 60 amp MPPT and 120ah LFP. There is also an active system with similar specs but a 2kw inverter in place of 1.2kw and in place of 120ah, there is a 200ah LFP that handles two deep freezers and a small fridge, with occasional photocopier.

Meanwhile my plan is to upgrade any existing 24v system to 48v system if and when it becomes necessary to include more loads beyond what currently obtains on the active system(s).

Another option I considered was to perhaps keep the active 24v system running and then make a new 48v system a mainstream supply to the house. It will supply some appliances and also charge, thru AC chargers, the compartmentalized 12v and 24v systems during the daytime.

I feel I should upgrade the redundant 24v system components to 48v. Besides changing the inverter to 48v and getting a 48v LFP pack (I could do series connection if I'm able to get similar 24v from the same supplier), what other additions would I require to run an induction cooker efficiently? The cooker will have two burners and I hope energy efficient ones are already in the market (not sure) that will make things easier.

You should confirm if your BMS can run series as most BMS don't do that. I use a burner cooker and another single burner cooker both powered on without issues. Though my inverter is the 8kw Deye but any 3kw inverter with X2 surge should do. Ofcourse I have no idea of your cumulative load but only focus on the cooker load which I guess will not be up to 2kw (using my dual face as reference)

45A -120A felicity MPPT charge controller available.

45A - #75,000
60A - #85,000
80A - #97,000
100A - #125,000
120A - #135,000.
Call/WhatsApp us on 08168986461

230AH 12v Genus tubular battery now available in stock, #133,000. Call/WhatsApp us on 08168986461

220Ah 12v luminous tubular battery now also available in stock, #130,000. Call/WhatsApp us on 08168986461

Hello Nairalanders. Who do you have bring in your lithium batteries from China? Preferably Air. Thank you

chris81964:
Hello Nairalanders. Who do you have bring in your lithium batteries from China? Preferably Air. Thank you

Maybe you should join our telegram small group there are various options, come to the backyard

If you have a problem, but everything has a solution, maybe an Inverter chargers will help you, so that you do not damage your solar panels so much or in your case, look for a technician who can help you with your situation. to have so many problems because from the beginning they should tell you how much each battery was.

samnaija:

You did not say the amperage your inverter is bringing out, it seems inadequate also the solar panels.
You should be replacing into your batteries about 22 to 25 amps both from panels and inverters.. solution add more panels , likely add an external charger, tubular batteries are stubborn.

Thank you sir,
from the EPever charge controller at 3:20PM today have this PV readings: 57V, 1.6A and 926kwh.
I do not know if the above makes sense or useful please.
Thank you

Namzy:

Panels are not adequate. Some suggest 400w panel per 200ah battery

Thank you sir.

peaceland:
Dear all,
Please I need your help.
At inception I was using 2 sealed maintenance free batteries which I believed to be 200ah each.
After about 4 years of usage I opted for the 220ah luminous wet cell batteries which I bought at their authorized store so most likely correctly rated.
The challenge now is that it takes forever for the batteries to get charged using solar or generator.
Unlike before on a normal day the 2 batteries get fully charged by 3pm but now by same 3pm it is just 1 or 2 bars on the epever charge controller.
We did not touch any other thing other than change the batteries.
However, at the point of replacing the batteries the technician noted that the dry maintenance free batteries are actually lesser than the claimed 200ah each but I put that down to technician rivalry.
The batteries only get fully charged now with PHCN power, not even with generator like before.
I have 2 solar panels from inception.
Please is there a way I can determine what is wrong with the connection.
Is there a way to determine the ratings of the panels without having to go way up the roof?
Someone told me the panels may be inadequate which if true may mean that truly the initial batteries were lesser than expected 200ah.
Can the difference in 200 – 220ah be that significant to cause slow charging (assuming the first set were 220ah)
Please how can I narrow down the possibilities?.
Thank you dear all.

If I type it, I'm sure I'd be banned

Best thread on NL. I'm learning alot from it.

ojeysky:


Maybe you should join our telegram small group there are various options, come to the backyard

Can we chat offline.

Trippledots:

Thats beautiful. A more sustainable and robust system would have been a batteryless, automatic dc pump system. So it fills up whenever there is sunlight.... Would last longer i think without much supervision or battery maintenance concerns.

Resources, my good friend. I did all these at a time I had more resources, country was better and family was smaller. I'll keep it in view though

mctfopt:
The one I'm talking of was actually 16 numbers. Till today, I'm not really a fan. It just did not fail, it failed catastrophically, swollen, can't hold charge for more than two hours, smelling when being charged, etc. So if I see anyone using one, I always advise them to charge it with specified voltage and current to avoid seeing such failure again.

Charging woes

ObabyObaby:
maybe the power wattage label in your equipment is not up to 100watts

Likely 100VA, not 100W of consumption. Not quite the same thing.

Saipro:

Likely 100VA, not 100W of consumption. Not quite the same thing.

Sticker ratings are usually the max- loudest volume, speed, etc.
E.g I always use my dc fan at the lowest speed.

I'm sure it's the same, an energy meter would have given him true consumpton

Call us for all Sizes ( 6KVA to 1000KVA) of Vertiv/Emerson/Liebert UPS

Please, l need help form the GURUS in this House.

Can any of my Ogas recommend a RELIABLE and AFFORDABLE Solar Panel Installer for me.
One that will do good, professional job.
I need to install 12 Panels
Thanks and God bless.