₦airaland Forum

buckeyemedia:
Almajiri Charity they say begins at home, it is your state Governor & Government That will provide portable water, food roads & schools for you, create jobs based on the comparative advantage of your state not the Federal Government, Electricity is in the hands of private individuals, after all these years of waiting for the FG from Obasanjo to Buhari you are still waiting for the Federal Government isn’t mumurism worrying you?

Hmmmmm.... Seriously? If an individual can do all these what is the need of government. The person that will be looking for a meal a day will be thinking about how to provide water and electricity for himself? These are possible in developed countries where the government provide a conducive environment for its citizens and also pay them some stipends weekly plus side bustling.

Is it every wine that is an alcohol?

JeffreyOraz:
One thing about most religious people is that they are hypocrites

And also all you wrote simply explains that people shouldn't get drunk, as simple as tbat

If Jesus could turn water to wine for people to consume who am I to believe this nonsense you wrote above

Esosaqueen:
yeah there's nothing wrong with that
So long as it's decent

Sexy and descent are parallel. Those that dress to look sexy in the church are the Jezebels in the church.

fabulous85:
not really, if he signed the birth certificate he will still pay child support on the baby till she is 18. unless he gets a good lawyer to get him out of the mess

What is not there? She supposed to be in jail for doing that. No need for court if the guy wants to pity her.

Good afternoon, Everyone. What are the major causes of battery swell up? Thank you.

adubam:
Try Strong 497s
Strong 4954

You will need to patch the decoders

These need no patch

Csat 8 pro+
Hello Box
Tiger decoders
Gt media etc

How to patch the decoder?

Spanishmario:
For a 1.5kva inverter, how many watts solar panel do I need and quantity. Thanks

The Inverter may not determine the size of your panel if you have an external charge controller. However, for 1.5KVA the highest size of an array should be 1KW. Gurus can come in here.

mctfopt:
Yeah, my production has reduced. But you can rule out failing battery by adding more loads to the inverter when it's sunny and watch the charge flowing in. Check whether the current increases (after the sunshine drops and picks up) and sharply tapers off (same may happen when battery is full or near full). But if battery is neither, then you may have a failed or failing battery.

Please can you explain more on this? The same thing is happening to one 24V setup now. Sometimes it will work fine but the following day inverter will just shut down with the sunset. Though I discovered that one of the battery down to 10V while the other is 12V. The cable from that connect the battery to the Inverter are not equal. The +Ve is longer that -Ve could that be the cause? if not what could be the cause of this?

Palliatives have turned to a campaign that they want to flag off. 9ja politician

obinna37:
I don't think is the same inverter, my will show CH,as sign of charging,but now it doesn't show the CH,it just display 99.1 as the batteries are charge. This the inverter model below

I didn't show main On? Check your input wires especially the breaker or fuse.

obinna37:
yes,no voltage input in the battery, I think the inverter is faulty, can it be repair.

I have the same issue. The inverter will show that is charging but no increment in the battery voltage. The system is designed for grid interconnection with 1100W array to charge 24V200AH bank. The problem is that it is always in use during the sunny hours thereby leaving the battery empty in the night.

Time to forget about the certificate self. Many companies don't employ base on certificate again. Who certificates help?

What are the causes of battery bank staying in bulk charging for a longer time? It doesn't charge above 23v for a longer time of charging on a series configuration.

NiyiOmoIyunade:
You can never hope to balance out a 1v difference with a conventional lead acid balancer - these move on average about 1-5amps per label specs but in reality usually less than 1amp balancing current.

Their biggest failure is that they use voltage equilibrium to approximate battery SoC balance and this is very very incorrect.

What you should do is charge the batteries to full individually in 2 or 3 charge, discharge, recharge cycles and then put them back together again in series. If pressed for time, you can slap one standalone charger on each battery, set the charger absorb voltage above normal inverter absorb voltage and allow the chargers to individually charge each battery to full charge. You are doing this simultaneously e.g two separate 12v chargers attached to a live 24v battery system and charging each battery in tandem with inverter charging. The chargers can share thesame AC power source as inverter but you must never cross the DC inputs!!!

If you do it correctly, the DC voltage of the chargers will at some point override the inverter's and take your weak battery on to a full charge. Run this over a few cycles and disconnect after you see the two batteries now staying in sync under discharge and also getting to fully charged within a few minutes of each other.

If no positive changes after 10 cycles, then you have a permanent capacity mismatch that will never be fixed. You can no longer use your battery pair in series and must either purchase replacement batteries or switch to 12v in parallel.

This procedure is simple and safe but requires a thorough understanding of the physics of electron flow in a DC circuit, do not attempt if in any way you feel afraid or incompetent to see it through.

As a standalone 12v charger you can either purchase adjustable voltage smart 12v charger (if such exists locally) or as I do, use a laptop charger or AC/DC converter btw 15v to 22v DC voltage output - feed the DC output of your AC/DC charger into the PV input of a decent PWM controller and you have a DIY adjustable voltage smart 12v DC charger right there. Don't forget to set an appropriate charge algorithm on your PWM charger.

Thank you very much. Can the PWM charge controller current rating matter? Or the charger current rating? If so, what is the recommended current for the 12V200AH for faster charging?

ojeysky:
Is that a lithium battery?

Gel Lead-acid Battery

I don't have battery balancer now. How can I balance two batteries in series with a difference in voltage of 1V?

olaolu11:
Correct me if I am wrong. With 1.2kW h consumption, battery will be drained in 2 hours.

How did you get this 2hrs?

Good morning, house. How do I balance battery manually without the use of equalizer? Two of 12V200AH in series. One up and the other down because of the Battery rack. The one down is higher than the one up by 0.11V. That is the one down is 14.13V while the up is 14.02V. Thank you.

ceaser:
Bhet why nau?

You know you shouldn't exceed that CC voltage. Abi you dey try experiment ni?

Somebody said it won't get to the maximum VOC.

ceaser:
Shuo! Na wa o.

Does that happen with most MPPTs or it's just a peculiarity of yours? What's the brand by the way?

Thank God it is not totally dead.SolarMate product

earthrealm:
Hahaha. You are very lucky , that you didn't burn the cc, you were told b4, ojesky encouraged you to risk it

Lolzzzzzz...The CC has very good protection but very bad in terms of array manipulations. It is called solarmate charge controller. Who has used it before?

dapsyra:
Your CC is probably going into protection mode when the sun is very high due to one or more of the following scenarios.

1. Over Temperature. The temperature of the FETs have gone above the safety threshold due to continuous operation at maximum power

2. Over Current. The output current spiked above the rated capacity for a sustained period

3. Over Voltage. The input voltage rose above the rated MPPT voltage

You need to rejig your array to avoid these issues.

It should be over voltage because the VOC of the series connection is little more than that of the CC Maximum input voltage. Maximum CC is 70V but the panels are 2S is around 77.6V. 1S4P will result to a lot of voltage drops. The only solution now is to change the CC. Thank you.

earthrealm:
Haha..your connection is wrong...likely overloaded the cc above its rating

Yeah... The VOC of the series connection is a bit higher than that of the CC.

ceaser:
Lose memory as how?

Stopped charging until I have to off and on the breakers. It happens every time the sun is very high.

mank1234:
Go with 3s2p or 2s3p.

Edit:
260w * 6 = 1560W.
Your cc puts max PV power at 1440W, you need to read the manual to know if and how it handles the excess, though you'll rarely (or never) reach 100% production.

The two days sun made my cc to lose memory oh... Because of excess. Just do 4 panels for your 24V setup.

harizonal123:
Inverter is 24v

Your CC has several rooms for connections.

ojeysky:
Maybe you need to do some labeling on the drawing. What I see from the diagram is that output of CC goes on to the output of the inverter battery terminal (on the inverter), and I was suggesting that it will be better you take it to the battery terminal instead as we don't know the ratings of that inverter battery terminal (which will be practically serving as bus bar for your CC) and we don't know how it will react to current from the CC directly hitting the bus bar.

As to losing current, possibly a little depending on how much current you will be pushing on the cable between inverter and battery

I will amend it seems affecting the battery charging. Thank you.

ojeysky:
Unless the inverter has a dedicated port for that and your CC also supports that don't do it! Output from CC should go to your battery terminals!

As you can see is to the battery terminals. It is hooked at the battery terminals on the Inverter instead of running the cable from the CC down to the batteries, I stopped at the height of the Inverter. Did I lose anything from the panels to charge the battery?

Is this setup correct? The cable from CC to the Inverter battery nodes instead of directly to the battery. Any implication?

Which can easily fried MPPT CC, high Voltage or high Current?

Dam5reey:
How come you got answers to this Question

What is your system Voltage?

I will assume 24V as common factor in both CC

If your system is 24V, then you cannot use the 40A controller
(6* 275w is 1650w ) 1650 watts / 24 is 68.75A

So you have only one option left.. ✅

Better still use Both ✅

How can both go in this condition. 1S3P not Good because of voltage drop. What do you think I should do? Thank you

Since this place is quiet let drop another question.

Can One HA02 handle 4S5P battery bank?

ojeysky:
I meant that it will be 35v per Panel, each of those panels with that rating won't do 35v, it will only always be close to it. Including in the morning.

You are right. Especially in Lagos that we hardly get sunlight. Thank you.