₦airaland Forum

shopnig24:
Wow
The Airtel 5G Speed based subscriptions has been upgraded

i feel like crying. I called one number you posted jane to be precise. She said it cannot work in non 5g areas. So this tin nor fit switch btw 4g n 5g. Make una help my ministry oo

ameh99:
you are very irresponsible and childis be very careful

my Monica has been existing on Nairaland before you even bought your first smart phone, you can check it

if you lack home training that's your problem

u de threaten me? Na pikin wen never go anoda person farm go tink say e papa own big. Go n check wen i registered on nairaland, dat time u never kno wetin dem de call internet. U still have the guts to com n open ur trash to tell me am irresponsible. The last time i spoke to you on phone i told not to bother advertising on nairaland. I trusted u very much but u took me 4 granted. I can never forgive u. NEVER

Edrizz:
Why chatting in parables, if u have any negative review about the seller, why not say it out once n for all.

are u new here

Edrizz:
Are you discouraging him from patronising d lithium battery seller or what?

u will com here n testify

gadgetplanetng:
Looking forward to getting & reviewing mine

dont say u were not warned. Premium tears awaits u

samir101ng:
I have been reporting and posting this on the thread & DIY Solar Telegram group for a while now. I attended the conference flying in from Abuja for three 3 days. The conference this year was even more massive and had a lot of Vendors in attendance from Fronius, Victron, SMA, Anern, Felicity, TBB Power, Xtra Power, SRNE, etc. I will post some pictures from the event soon. The conference has had maximum exposure as the current minister of power Mr Adelabu was at the event. I have also been seeing their sponsored posts on linkedin, youtube and online.

sent u a dm

shopnig24:
Subscribing and using it for a year

doesit have an ethernet port

shopnig24:
Yes boss. It will automatically pick 4G

i wil b willing to try this 5g device.. i pay 15k for 75gb 6am to 8pm with the same bandwith allocation. 8pm to 6am is not data capped.

shopnig24:
It's dual band.. 4g, 3g whatever is available works.
And the moment 5g is available it works effortlessly too.

i just checked my location now. 5g is not available. Will it wiork under 4g

jonescosmos:
In simple terms, there are 3 types of Inverters.. . The cheap one used to simply be square-wave, that is ON + for half the cycle and - for the other half cycle. . . OK, for lights, and heating equipment, did work with computers and some other stuff, but probably not very good for them.. . Very high in 3rd harmonica and other odd harmonics as well. . . Then they improved these by having an OFF period between the + and - .. . These are “Modified Square-wave” but the naughty manufacturers call them “Modified sine-wave” which they certainly are not.

Then, in the old days, we used to have real TRUE Pure-Sinewave Inverters.. . These were proper sine-wave and very clean, even cleaner than the grid supply, free of any harmonics or any other products. . . . They worked very well, but they were inefficient at converting DC to AC, and so gave off a lot of heat.

The more recent, particularly larger modern Inverters use a form of Switch-mode, often referred to as PWM. .. They switch the DC feed to the output, often through a transformer, in very fast On/Off pulses. . . The On and Off period ratio, sort of matches a sinewave approximately. . . . So with efficient output Filtering, their output is fairly close to a sinewave. . These are the true Modified Sine-wave inverters. . . The filtering blocks most of the harmonics, particularly the higher frequencies, their outputs are good for anything that normally works from grid power. . . But they are NOT True sinewave as manufacturers call them, but they are very power efficient, typically up in the high 90’s %. . . Some claiming 98% efficient, whereas the actual True Sine-wave, as I mentioned before, from Linear Inverters, were perhaps only about 60% efficient.

The outputs of inverters that are power efficient have a lot of harmonics.
Back in Engineering 201 (I think it was the sophomore year) we learned about the Fourier transform and how any waveform can be created with a series of sine waves with different frequencies. frequencies.

The attached picture shows what happens as you add odd harmonics (3*F, 5*F, 7*F) to a sine wave. You can see the sine wave starts looking like a square wave.
A square wave, or any rectangular switching waveform, has a bunch of harmonics present that are often significant at more than ten times the square wave frequency.

For some equipment this is no problem. A lot of components today such as chargers and displays just rectify the AC input right away. Harmonics either don’t matter or they are mostly filtered out and don’t cause a problem.

Magnetic equipment, such as motors and transformers, are not so forgiving. The magnetic material in most line frequency magnetic components is a silicon steel alloy that is chosen because it works well at low frequency, 50 to 60 Hz. The losses of silicon steel increase rapidly with frequency. If there is significant energy at 500 to 600 Hz the loss of the magnetic material causes it to heat up.

Things like refrigerators, fan motors and old equipment with a line transformer can all be heated enough to cause failure.

In many pieces of old equipment the AC inputs are not as well filtered and the higher frequency harmonics can cause noise and interference.

An inverter that doesn't produce pure sine wave energy can have a number of negative effects, including:

Reduced efficiency and increased power consumption. A non-pure sine wave inverter typically has lower efficiency than a pure sine wave inverter, which means it requires more power to produce the same amount of energy.

Reduced performance of some electronic devices. Some electronic devices, such as some types of motors, are sensitive to the type of power they receive and may perform poorly or not work at all when powered by a non-pure sine wave inverter.

Increased electromagnetic interference (EMI). Non-pure sine wave inverters can produce more EMI than pure sine wave inverters, which can interfere with other electronic devices and communications equipment.

Reduced lifespan of electronic devices. Some electronic devices, such as some types of motors, may have a shorter lifespan when powered by a non-pure sine wave inverter.

It is important to note that these negative effects may vary depending on the specific device hor equipment being powered by the non-pure sine wave inverter. It may be best to consult with the manufacturer or a qualified technician before using a non-pure sine wave inverter with certain devices or equipment.

abeg na... this one u de introduce fourier series. E remain laplace transform for u to add.abeg allow us to manage our inverters in peace

Uchman81:
It's a hybrid.
Heats up easily while charging with Nepa, the fan stays on through out the charging period.
Damaged my laptop chargers. (All those kikiki sounds, from there the charger will stop working)
Haven't loaded it more than 300 watts so I don't know how it handles load.

i don run

@ op wat happens if i dont have 5g in my location.

Uchman81:
Those prices are tempting, if the distance isn't that much, you pay him a visit.
Keep us posted, will like to get the Felicity 5kva hybrid inveter as my Must 3kw inveter isn't serving anymore.

please what happened to yours. I AM Looking for a detailed review on the must 3kw 24v inverter.is it a hybrid inv or Standalone

ojesymsym:
The feedback I am getting is that our Chinese guys were firmly on ground. I hear they have started offering 15 years to 20 years battery warranty.

The capacity I hear they are offering on inverters is so far unbelievable that I cannot yet mention it until I get concrete proof.

I understand these Chinese guys are taking this space by storm o. I am not too shocked though, considering how far they have gone with electric cars.

its really unbelievable. 15yrs? The goal of every business model is to make money while keeping other values constant.. well nothing is impossible.

Am in need of a 2.5-3kva 24v inverter with lifepo4 charging capabilities

mctfopt:
Sorry, the person you quoted never replies anyone.

That guy is fake.. na piple money e take de experiment 4 dis gp. Dont buy anything from him.

ojesymsym:
Na wa... small let us play small and do small addition na em you go carry further maths test book come out? Sombori cannot play with you.

Anyway, it is interesting how knowledge of technology can be used to manage cost, improve security and even provide entertainment that others pay a premium for.

lol . Na really play small

jonescosmos:
Mikrotik may not be as reliable in high-traffic environments or may not be well-suited for large-scale network deployments. Mikrotik has limited tweaks and flexibility in terms of traffic manipulations.

I didn't bother myself to make my Mikrotik box a Cache and Proxy Server because it's handling lots of things already, going from ROUTING, DHCP, FIREWALL, MULTI-WAN, etc. each time I tried to implement a proxy server with this same box, I always notice a slight difference in performance. So I intend to deploy a second box to handle the Proxying part of my traffic and maybe Hotspot Server for my staff and guests.

I have to mention that Mikrotik DNS always crash because of the big static list which leads to a R/W issues. Back in the days when the x86 versions was the best option for larger network environments, R/W speed was a problem, as year went by, we had SSDs which performed better but you can't compare the performance of Mikrotik to the likes of Squid and NGINX running on it's own linux machine and solely for the purpose of Caching and Proxying internet traffic. Even though we now have more robust Mikrotik ROS Boxes and Hardwares with sophisticated configurations, Mikrotik still haven't made to the Top 10 Cache and Proxy Server lists till date.

u just brought memories of squid... anyways i havent used it in a long time... internet speeds have improved over time and still improving... but i think i will make out time for NGNIX and see its potentials...... na where de bring money man de face 4 nigeria oo

samir101ng:
Your customer is on a tight budget and he is going for Full River AGM Batteries from Idyllic ? Full River are the Grade A of Premium Lead Acid AGM batteries and cost quite a penny on par with LifeP04 cells. The point Valto raised is instead of spending that amount for a number of batteries that you can max discharge 50%, why not buy LifeP04 that has more usable capacity to use. My last quote in 2020 for their 12v DC-260ah battery was N205,000 each. Only God knows how much they go for now.

lol. U nor go understand. Na d load i de vex 4, d amp draw just 2 much on top 24v setup. although e go com down later.. battery is 220k for 12v 200ah

Valto:
buy my 12v 173ah lifepo4 lithium battery for 400k, made with 60A Bluetooth bms. 80A /100A bms on request. also made with brand new grade A EVE 173ah cells, actual capacity is 178ah. note:brand new grade A cells can last approximately 10 to 15yrs..far better than buying lead acid for 220k to 240k

---

12v 30A dedicated lifepo4 lithium battery charger available incase inverter is not compatible..

valto even as much as i love lithium battery. This customer de on a tight budget. I 4 go 4 24v system but na waste of energy n resources on top a 1000w to 1200w load continous..

ojesymsym:
There used to be some methods achieved with Squid back in the day. The idea was for a local server to locally cache regularly access info on the internet so that when accessed once, all other requests for that info will first check if it is available locally before going to access it online. Is there a better way to achieve this nowadays?

i think mikrotik does it better.. back in the days we made use of a spare pc n referred it to as cache. We installed some spare hdd n installed mikrotik x86 on the boot drives leaving the other bigger drives to act as the proxy cache. I believe things have grown abovecthis stage. Maybe you can check on the mokrotik product catalogue to see which products fit your needs

Are full river batteries from idyllic worth the pay.. i understand they have been around 4 quite a while but i dont want to use this to justify them. I nor just want tubular wahala

anyone used era solar panels here... budget nor de 4 jinko...

Peterlove11:
Speed isn't everything....4G and 5G will deliver speeds that will be sufficient for most applications. Latency is another caveat. Communicating and doing internet application in real time with latency close to zero is the jewel. 5G was touted to achieve almost zero latency. That will be very useful in auto driving cars, performing remote surgeries by surgeons in real time,
online gaming etc . Zero latency is what technology is trying to achieve.

Sorry, don't know how to communicate it to you. I just hope you still understand

In as much i wont dispute your fact,
latency and speeds are 2 different ball games...

Peterlove11:
It's OK....good speed isn't everything. Developed countries that are well connected use fibre to home. It supports large bandwidth transmission . And the best advantage is its latency. Nigeria is connected to the rest of the world through optic fibre.

speed isn't everytin ?.. bros abeg na autocorrect write dat statement? E b like u never experience good Internet speeds

Peterlove11:
This is fibre, you can't compare to satellite or cable network. Fibre is the mainstay and future of communication. Communicating at the speed of light. It has better latency. I will always pick 25mbps fibre anytime, anyday over 150mbps satellite or cable link.

starlink does 230mbps..

fibre or no fibre. what we want to achieve is good speeds... i go see 150mbps satelite come go 25mbps. bros u sef tink am na....

earthrealm:
ok great. @valto also recently stepped out on a limb and bought seraphim panels...against his better judgement, but he was pleasantly surprised as they presently are doing quite well too.

would be nice to compare notes after some years time as well

we just need a bal btw tier 1 and average panels

samir101ng:
Baba, go back through the pages of the thread and see the list of LifeP04 vendors on Ali Baba.

Contact them and negotiate a price. Some can ship directly to Lagos DDP (Delivered Duty Paid) and you pick at the shippers warehouse or they ship to a freight forwarder of your choice who will handle shipping on your behalf. You use your dollar card to pay using Ali Pay and that's it. The alternative you contact any of the lithium sellers here and buy from them with their additional cut on top. Choices dey.

this thread na over 1000 pages.. aveg help us with the direct pages. E bor easy 2 search

earthrealm:
gloriousgbola ain't a novice, he ain't asking to learn.
am keen to hear his POV.



GREAT NEWS, perhaps they hv improved,.......................... perhaps cos its still new. hitting 85% performance by 10.30am is really really superb, that means it cud easily hit 100% and more between noon and 2pm...which is the period with highest generation


wish we can get this data after 2 or 3 yrs, as that's the average time, the performance of lowend panels nose-dive

hmmm are you guys serious about this lowend panel degrading after 2 to 3 yrs? Anyone with proof

dollarnaira:
Installers disguising as users now here.

lol

Justice629:
Thanks!
Dark clouds is an enemy of pv renewable energy source and that's what the weather in Calabar has been since late June todate.
Tier 1 or tier 100 all face the same fate with dark clouds.

lol...

bassdow:
Most so-called INSTALLERs do not know what they are doing.

Same way SOME beliveves the HOTTer the Sun, the More the PANELs work.

lol...abeg nor make me laf dis evening