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Satellite TV Technology › Re: Solar Energy, A Complement To FTA by ceaser: 2:35pm On Dec 30, 2020

dollarnaira:
Sincere appreciation for ur response.
I charged with a lithium charger
No bms installations.
You v increased my knowledge tonight. Though still confused at DOD for d 10.8v i.e 3s(2.3amp)+ 3s(2.3amp) in parallel to give 4.6amp at 10.8v
Thanks.

I assume @ bolded you mean 2.3ah (2300mah). For the whole pack of 3s2p total capacity should be 6600mah. At full charge of 4.15v per cell, you'll have 12.45v at 2300mah.

Allowable low voltage discharge level of 18650 is 2.7v per cell below which the cells can get irreversibly damaged. Usually a BMS ensures this does not happen and most BMSes usually cuts off voltage at 2.82v per cell. That is 8.46v for a 3s pack. But for longevity sake, I would suggest you don't discharge it below 9v (3v per cell).

Your batteries are salvaged, not new. So the capacity isn't likely the nameplate 2300mah. You may be looking at around 80 percent capacity left after those years of use. Look forward to a more conservative 1500mah capacity left per cell.

Education › Re: Professor Femi Odekunle Dies Of COVID-19 Disease by ceaser: 11:00am On Dec 30, 2020

Omihanifa:
So sad it's like this new strain no dey waste time at all of God have mercy

The way it goes, it appears there was a revisit to the laboratory to re-engineer a less merciful, more virulent strain that will this time ravage equally Caucasians and Africans.

Due to unforseen circumstances and peculiarities of Africans, viz-a-viz climate and TB vaccinations earlier strain seemed to spare Africans a lot to the chagrin of the naysayers.

Politics › Re: IMF: Nigeria Remains Largest Economy In Africa, 26th In The World by ceaser: 8:45pm On Dec 29, 2020

Where is South Africa nau?

Science/Technology › Re: Huge Kangaroo Punched Australian Man To The Ground (Pics, Video) by ceaser: 8:44pm On Dec 29, 2020

This is how Nigerians will attack and push the politicians to the ground as they try to shoo innocent indigenes from foraging for better condition of living after their means of livelihood has been burnt from the embezzlements of politicians.

E.go soon be.

2 Likes

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by ceaser: 8:35pm On Dec 29, 2020

Saipro:
Seems the gas refills have a lot to do with the increased "power hunger".

Like the gas used does not have the same ideal thermal properties as the one originally used.

Plus sometimes they re-pipe the freezer with this copper tubes after removing the ones that come with it.

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by ceaser: 5:11pm On Dec 29, 2020*

ojesymsym:
From an energy efficiency and conversation of coldness, bwtween Scanfrost and Thermocool which would you rate the highest? Also, I tend to hear of more people repairing their thermocool than Scanfrost.

Well, I have had no experience whatsoever with scanfrost freezer or any of their products for that matter. But I'm on the third thermocool freezer. The first 219L was 12 years ago and demanded first kazeem tinkering 10 years after faithful service. It still freezes alright but I had to dump it when post-kazeem tinkering ramped up the wattage from 130 watts to 250 watts.

The second is the 203L non-inverter acquired over a year ago. The third is the 319L inverter acquired about 4 months ago. They both still live up to expectation. Freeze quite good and retain frost for the claimed 100hrs from the very few occasions (not anytime recent) I had to leave them off power for such duration.

I want to strongly believe that if you have constant, non-surge voltages like the inverter produces, gadgets including HVAC gadgets should last longer than if they are exposed directly to our epileptic BEDC power supply. So if thermocool with their good reputation gets exposed to such insult, it may fail earlier than scanfrost, and vice versa.

As per your observation of peeps repairing thermoccol more than scanfrost, I'll assume it's probably because more people use thermocool than scanfrost.

But apparently you've have a fairly impressive experience with scanfrost, then you may go with it.

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by ceaser: 4:36pm On Dec 29, 2020

dollarnaira:
Help pls!
I v 18 pscs of lithium batteries(18650) that I extracted from laptops batteries.
Performed a small DIY small project yesterday.
I combined 3×3.7v = 11.1v and charged with 12.4v at 2amp or less lithium charger that I varied. Though it charges full according to the charger's display. No heat whatsoever during charge to full stage.

Now i discovered that the rest were 3.6v each.

18650s max out at 4.2v each. Better to keep it at 4.15v when full.

3.6×3= 10.8v ----- can I charge at 12.4v?
3.6×6= 21.6v ----- can i charge little above 24v?
3.6×7= 25.2v ----- can I charge above 24v?

Can I DIY lithium ion guru help?

3.6×3= 10.8v ----- can I charge at 12.4v? - yes, even at 12.6v
3.6×6= 21.6v ----- can i charge little above 24v? - at 26v
3.6×7= 25.2v ----- can I charge above 24v? - 7s 18650 at 29v charging voltage ideal

My responses assume that you have a BMS installed in which case the batteries are protected from overvoltage or overdischarge which may lead to early failure.

But if not and you just want to get by with a few cells, then ensure that the charging voltage is the addition of the individual cells in a series, that is 3s will be 4.15 in three places (12.54v) etc

It's usually fun to DIY lithium but abeg inculcate the habit of using BMSes - 18650s without BMS is a serious fire risk while LFP without BMS pose more of early failure risk and then maybe fire, in that order.

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by ceaser: 3:54pm On Dec 29, 2020

earthrealm:
IS IT JUST ME, OR is someone else noticing something..............

God bless you.

Right from the second post, I don dey wonder. Say maybe Ojeysky just chop belleful the pounded yam wey madam prepare, so his antennas are not up yet cheesy

3 Likes

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by ceaser: 3:36pm On Dec 29, 2020*

ojesymsym:
Is it just me or has anyone experienced that these inverter fridges block fast

True. The compressor ramps up fast and quickly freezes things. I guess that's one benefit of having variable speed thingy driving the central core of the inverter compressor. The upside of it, that is. But the downside I have noticed with this is in a situation where the freezer is opened too often or when loaded full with fresh items. This is my own case. The 309L inverter freezer (nameplate 115 watts) is in a shop and so it always runs at 180 - 190 watts constantly as against the 105 watts I recorded when I test ran it few days after purchase before it was fully commissioned for use. At times it even goes to a crazy 203 watts.

According to the instruction manuals of the regular freezers, I think some duration of pre-freezing is usually adviced before packing it full of items. The inverter freezer apparently bypasses this by ramping up the working of its compressor to handle the item capacity.

I strongly believe that if it's a non-inverter 309L (nameplate 145 watts), it will constantly stay at that 145 watts irrespective of the frequent opening and closing, although prolonged frosting time will be the result of that.

The non-inverter 203L (nameplate 115w) runs at a constant 102w, although with less than 10 opening and closure daily and boy, it is always thick frosted to the sides and the edges.

With this, I will advice that anyone on solar power and planning on getting freezer for shops which will require frequent openings on daily basis should probably avoid inverter freezers, but rather go for the constant wattage non-inverter counterparts except of course the installed solar and storage capacity can handle/supply the increased power demand.

and lost their frost also very quickly once they are not powered.

I have not noticed this. But if you open the freezer too often, it will definitely defrost early.

Any good freezer recommendation that is able to retain ice long after power outage?

Both thermocool freezers I mentioned earlier advertise 100 hours post power outage, from personal experience they live up to it.

1 Like

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by ceaser: 3:18pm On Dec 29, 2020

essegis:
They say when it rains it pours.

Na inside this wahala sun decide to carry him busy body shift base oo. It now casts a house shadow over my panels. When I did the design for panel placement I took time & did the study properly hence my surprise when I noticed shadow yesterday. This has caused the system not to float for over a week now. Even on days the inverter is not used it still doesn't float.

You're not alone in this "sun changing base" conundrum cheesy

. My 24v/220ah LFP rarely charges above 26.5v everyday this time around. Plus the roof orientation is of little help as it faces North, I think. Dust covering on the panels has also severely impacted insolation. Cleaning isn't an option except I outsource it to those who can climb the roof. Although I believe adding two more 330w (660w) to the installed capacity of 1320w may bring battery close to float each day, sufficient enough to still keep the battery at above 25v at the break of each morning when it runs overnight.

My solace however is in the fact that with LFP, I can afford to go each day without reaching float voltage unlike lead acid users, hence I am less agitated. All I just ensure is that battery does not go less than 24.8v everyday.

essegis:
Well, presently there is no immediate plan to get around this conundrum oo. Question is just why we make our own lives deliberately difficult in this country. No be everything be government cos this is a private business that could have just come up with a very simple system of activation instead of this suffering for their customers. Heard every one who collected meters around the time I did have the same problem.

The government is highly unserious. People are seriously moving away from the mainstream public utility to AE, no matter how little the capacity is. Just lighting and charging phones is sufficient for even some highly placed/classed individuals while large capacity setups are also options for those who can afford it.

And since you said that the problem is peculiar to a larger number of people, I want to believe that the solution will be sought soon.

Sorry. Also extend our solidarity to madam who has spent a lot calling those incompetent people.

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by ceaser: 2:55pm On Dec 29, 2020

ojeysky:
Each cell is 280Ah and I have 16 of them

That's some large storage right there.

Politics › Re: Dahiru Mangal Katsina’s Richest Man Pours Billions Into Nigerien Election by ceaser: 11:44am On Dec 26, 2020

And someone will be telling me that most of these northerners are not Nigeriens that have nationalised as Nigerians.

Are you now surprised why GMB, the Fulani service chiefs and the Fulani herdsmen couldn't care less if Nigeria burns while they major on using Nigerian resources to build rail and roads to their country and to buy refined oil from their country.

1 Like

Education › Re: Why We Sacked 2,414 Teachers Employed By Ex-gov Ahmed –kwara Govt by ceaser: 10:01am On Dec 26, 2020

quote

Education › Re: Why We Sacked 2,414 Teachers Employed By Ex-gov Ahmed –kwara Govt by ceaser: 9:58am On Dec 26, 2020

It's simple.

Because they misspelt government as "governmet".

Wouldn't want such Nairaland teacher teaching a child nonsense.

5 Likes

Romance › Re: Lady Cries After Posting Nude Pictures But Followers Refuse To Grow by ceaser: 7:09am On Dec 24, 2020

ItsTutsi:
lol. nothing serious bro, just trying to catch cruise by fooling around on a faceless forum.. most of us are totally different in the real world, I just come here to mess around with people

I hope she knows I'm just being sarcastic

If the movie "surrogates" were to be lived in the real world, one cannot imagine the extent peeps will explore to or catch cruise to.

Education › Re: Pictures Only People Who Attended Primary School In Nigeria Will Understand by ceaser: 4:07am On Dec 22, 2020

LimAnc:
Na me be class rep that year. Everybody just automatically become my friend, come see bribery ��( everyone would share their biscuits and Sweets with you in other to avoid the dreaded list)

Hmmm. E don tey wey you don key into corruption. cheesy

1 Like

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by ceaser: 3:42am On Dec 22, 2020

ojeysky:
An upgrade was envisaged that's why am running 2p8s on my 16 cells, will just reconfigure to 16s. Advantage of a DIY I guess

Yeah. Nice. You had that factored in real good.

So that means each cell was 140ah? I always thought they were 280ah straight off.

Politics › Re: How Is The Electricity Bill In Your Area? by ceaser: 3:39am On Dec 22, 2020

boyjo:
*Please any where you see say I mention "cellotape", na mistake. I meant , "insulation tape".

The first thing you need to buy is 10A battery charger. That is what I use for my 200AH battery.
I buy my own battery charger from Jumia.

Cc: Davland

You need more fine tuning and "oomph" to your alternative energy sojourn. Visit this thread for great insights.

https://www.nairaland.com/390522/solar-energy-complement-fta/912

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by ceaser: 3:32am On Dec 22, 2020

NiyiOmoIyunade:
All the 8 Genus were on solar.

The 6 Quanta were not. They saw little use but left uncharged for a while - the owner fled the country at the beginning of COVID pandemic

I can bet that that dude is a doctor.

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by ceaser: 3:31am On Dec 22, 2020

ojeysky:
Yeah assuming the firmware upgrade is available but it's not available for GK the mk has it though. As to never ending system upgrades(well you referred to float in your previous post), I started small hence am enlarging my system gradually, am not sure you bought all your current system in one day but if you did our account balance status vary o.

So what will now happen to your 24v/280ah LFP, get more cells and repack for a 48v?

Politics › Re: Omoyele Sowore Blasts Garba Shehu: "You've Become An Apology Of A Person" by ceaser: 9:02pm On Dec 21, 2020

"Your case is beyond apologies, you’ve become an apology of a person! It is too late for you! You lie to cover lies and you are so obsessed with lying so much that you now do so effortlessly and without shame!"

And Liar Mohammed too.

Politics › Re: Nsukka Youths Call For #EndPoliceBrutality & #EndBadGovernance (Pictures) by ceaser: 8:50pm On Dec 21, 2020

God bless you yanfuyanfu.

I pray say make 'em hear, deaf government dem.

Na so e dey start small small. Another inscription on Sango bridge reads "fvck the government". Peeps are getting restless and more angered by the day.

https://www.nairaland.com/6324652/banner-saw-sango-under-bridge

If this government continues in their self-destruvtive path, next year will not be an easy ride for 'em with Nigerians.

1 Like

Politics › Re: What Happened To The Kidnappers Of Kankara Students? by ceaser: 8:38pm On Dec 21, 2020

They are balling now.

They had a party with the Army chief and IGP yesterday. They joked over nkwobi and bottles of Hennessy. They really laughed at how Buhari fell for their gimmicks and planned how they were gonna cut him out of his own share of the ransom money.

Politics › Re: How Is The Electricity Bill In Your Area? by ceaser: 8:36pm On Dec 21, 2020

I have been providing my own electricity for four years now. I have saved myself so much headache and naira.

I wish every household will be able to afford solar AE and dump this useless PHCN like Nigerians did NITEL.

Politics › Re: NIMC Shuts Lagos Office To NiN Registrants by ceaser: 8:25pm On Dec 21, 2020

OceanEye:
What I don't understand is that after checking my sim card, I found out it has been linked to NIN even though I have never registered for NIN. Is something wrong somewhere?

Probably the former user of your number before it was re-assigned to you had that number linked to his own NIN.

Did you recently get that phone number?

Now this appears to be one flaw in this process. When theseobile operators deactivate and re-assign numbers after 6 months of inactivity, the new user may begin to receive bank alerts of the former user and even calls from relatives of the old user. It can potentially put the new user in trouble like it did that innocent man that was arrested by the DSS because General Buhari's daughter's number was re-assigned to him.

Politics › Re: Army, Police Fight Over Rescue Of Abducted Islamiya Students In Katsina by ceaser: 11:15am On Dec 21, 2020*

I choose to go with the NP on this. The NP will not have the gut to claim shootout if they weren't involved in one.

It's the NA that I doubt their figures on the number of he rescued. This is because they have precedences in such, a recent example being the Lekki shootings.

Politics › Re: Sanwo-Olu Wins The Nation And Leadership Newspappers Governor Of The Year by ceaser: 8:35am On Dec 21, 2020

And it's Nations newspaper. How convenient.

Trying to paint him well in the wake of the #ENDSARS #LekkiKillings scandal.

Give it to Tinubu. He is seriously working hard at PR. First the "kidnap and successful release" of the Kankara boys by Buhari and now Sanwo Olu's award.

Although, Nigerians already see thru their fake fascade so all na waste of time.

Politics › Re: Over 70 People Killed During #EndSARS In Lagos Unclaimed – Femi Falana by ceaser: 8:24am On Dec 21, 2020

mrfreestuff:
He should stop speaking in parables.
Who are the dead?
When has mortuary unclaimed body in Lagos become a subject related to endSars when as far back as 2012, Vanguard newspaper has been crying of over flooded mortuaries in Lagos.
One problem with lying is that when you tell one lie you will need other lies to cover it. Mr Falana is just not getting it. This is a serious issue he is playing with. You can't kill that much in Lagos and kill all their friends or family. Or was there SARS protest in 2012 too? He is probably doing this because of his son fingered to be among the privileged youths who used the platform to gain more relevance but didn't see the arson unleashed on Lagos coming.
https://www.vanguardngr.com/2012/08/lagos-mortuaries-overflow-with-unclaimed-corpses/

Well, I'll ignore what your intentions are, assume you don't know what is done in any hospital settings and educate you.

When patients are hospitalised, their folders have the days of admission registered and there is also a central register that records the biodata (date of entry, sex, age, etc) of such patients.

This is the same way it is done when bodies are taken into the morgue.

So your vain attempt at lumping year 2012 bodies with 20/10/20 bodies is actually a waste of time and energy.

Politics › Re: Over 70 People Killed During #EndSARS In Lagos Unclaimed – Femi Falana by ceaser: 7:54am On Dec 21, 2020*

Indeed this sort of things are not new with Buhari.

943 persons killed in 11 states in the post -election violence, a time when his people murdered thousands of innocent and unarmed Nigerians, in an act of obeisance to his instructions that "baboon should be bathed in blood".

He has repeated the same carnage in 20/10/20 and his people are daring families to come forward to claim bodies that "do not exist".

Difrent:
If people are so afraid d,why then did they ask government set up the judicial panel of inquiry...... Sometimes we behave as if we don't really know what we are doing or what we want.

Anyone that has genuine grievance SHOULD NOT BE AFRAID TO TAKE THE MATTER TO JUSTICE OKUWOBI PANEL.....
but in nigeria we will leave it to God and come online to be ranting and cursing when we have have the opportunity to do right.....

Why are you like this? Why don't you just come out expressly that you wish to defend the government?

Have you conveniently ignored the fact that the government has taken over the role of prosecutor, adjudicator and executioner by disregarding the importance of JUSTICE OKUWOBI PANEL in going ahead to freeze the accounts of protesters?

In any judicial process, the parties have no right to do anything outside the court that could jeopardize the judicial process, but your government has gone ahead to further intimidate participants by freezing their accounts. Tell yourself not me, who will be free to come testify in such instance.

Annoying, to say the least.

capitalzero:
Wretched of the earth do not care about any panel. They want to survive. They have no hope. Take your time to interact with poor people you would understand!!
In history , upper class reacts to injustice through negotiations and lobbies. Middle class would demonstrate peaceful, write petitions and go to court. Lower class would normally react through riots and deadly protests.

You're too generous with explanation. The poster you responded to (@Difrent) has stated his position right from his first post, and that is the protesters including those murdered are grossly irresponsible. That position was a grudgingly agreed one after their initial claim of "no killings at Lekki" was punctured.

No amount of explanations will make people of such stock to see knowledge in what you wrote up there.

Politics › Re: NIPSS Boss, Habu Galadima, Is Dead by ceaser: 5:08am On Dec 21, 2020

Sad.

Is this Covid related too?

Properties › Re: Why Don't Builders Use Steel In Nigeria? by ceaser: 5:06am On Dec 21, 2020

Gorillabrain:
In my village nothing like dangote cement becox we used iroko tree to build house including two story building. Longlast since 1889 till now. Why dangote kno go sell 1bag of cement 5,000 naira. Nigerians should switch to timber not cement for solid everlasting life.

In those days, timber is much more reliable to use in Nigeria for obvious reasons. The woods were harvested when mature. I have seen a number of old buildings with their stairs and decks made of wood and these structures hodk solidly even after several years.

However nowadays, Nigerian lumberjacks will supply you with useless wood that termite will destroy within one year. Even they cannot be sincere with the common woods being supplied for roofing and nogging let alone the whole building.

If Nigerian builders can supply you with inferior bricks, cement and all sundry, why won't they do the same with timber for construction.

22 Likes 1 Share

Science/Technology › Re: China fires up its 'artificial sun' for the first time (Pics) by ceaser: 12:16pm On Dec 19, 2020

China and orisirisi.

richeeyo:
Stop glorifying China unnecessary, America had it first test in 1951
And have managed to stabilize it,
France is currently planning a site for commercial use of its energy, let's know how many seconds that test the chinko did lasted

If monkey no fine, hin mama still like am.

People don't have to praise China, their produce speaks highly of them.

And while no one disputes the fact that other western nation may have succeeded with similar feats in the past, that in less than two decades China rose from a grounded, poor, rusty and dusty economy to become a contenting financial and manufacturing giant is an incontrovertible fact.

I just wished an African nation, especially Nigeria which is blessed with so much resources, will also rise from the ashes within short period. Sadly we are not blessed with revolutionary and visionary leaders.

6 Likes

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