₦airaland Forum

Valto:
i don't use Hithuim and has never bought any. i use brand new grade A Gotion cells and it is 12000 cycles!. i also use EVE cells.

it carries 12000 cycles but have you confirmed by reaching the 12000 cycles?

Valto:
i don't use Hithuim and has never bought any. i use brand new grade A Gotion cells and it is 12000 cycles!. i also use EVE cells.

it carries 12000 cycles but have you confirmed by reaching the 12000 cycles.

ask4bk:
Same thing i always say.
This year, added many battery packs and all are DIY. That's the route I'm standing on always. Not following any brand

Even your so called DIY cells have brands and are prone to faking too so whats special about DIY at the end. Many dont do good DIY jobs. DIY is stresful and not so scalable.

Jefferyzz:
It's not by display u go take no if controller nah mppt or not, open up d control n see d internals, or look through the vents, avnt see pwm come with rs485 port. The controller get app if u won see colorful designs.

Even inside of MPPT can be faked.

ufotunang:
..is El-rufai the current Kaduna state governor or president

No but he is very influential and has every reason to be behind these attacks.

Amayabor1:
When people were attacking El-Rufia that since he left office, Kaduna has been calm, then they strike.

El-Rufai is one of the sponsors of terrorism in Nigeria. He even alluded to it when he said he paid fulani herdsmen not to attack any more.

very true. Someone rightly observed that the attacks get dramatic anytime Tinubu is out of the country and it has checked out again.

Trippledots:
What's the you want to power, I want to assume a solar generator will be better for your needs.

I have one I can recommend if it fits your need.

go ahead.

RickyM:
Contact Valto to get a 12v 1kw Welion inverter, it supports grid charging and you won’t need PWM as it comes with MPPT cc inbuilt…It support up to 40A to recharge your battery.

Thanks. Great option.

bassdow:
well if you just want brands, I would give you BUT if it's about efficiency, you got more than you asked for from ma comments.

Also someone with such setup, doesn't need to bother much about brands and the rest. Just buy (used) Solar panel, just ensure they actually are what's stated on it's sticker. As for the brands you listed, told you I already used one of said brand with no issue. For a setup like yours, Solar panel no go be your issue rara.

You said you have asked same question before BUT got no response: mayBe na because people no know as dem go take respond. Even me sef dey feel say i dey respond before getting to understand your question.

See eh, kindly tell us what exactly you need: Inverter brand, Solar panel brand, battery brand, etc OR you want specs.

For me, with your requirement (from what I seem to understand), except there's plan to increase later, just buy any Solar panel even if it's used. Just ensure it's actually 300w and not just on the sticker. Brand doesn't really matter here that much especially for said requirement.

Depending on load, and quality of PWM (which already is bad idea for 300w + 12v battery), hopefully the user doesn't need much from the battery else the battery (even if na good quality) life go drop seriously

the solar panels, inverter, controller and battery already exists. Dude just need something to help use NEPA light to charge the battery and automatically switch-over between NEPA and GRID. Dont know if a small 12v system exists for such thats why i hit nairaland.

bassdow:
12v system can never be efficient with an inverter. Same is true for 24v and 36v and 48v and...

The koko be say, the higher the voltage, the more efficient the system would be.

Also using 300w SOlar panel + PWM controller is a complete waste of resources. As for the 100AH battery, Except it's Lithium battery, only use 100AH battery when you actually need <= 50AH. Even if it's Lithium battery sef, 100AH is small that except your loads are super light, said battery wouldn't last long enough to repay it's costs.

Regarding your 300w vs PWM, you're better off with a used MPPT than a brand new PWM especially when paired with a 300w solar panel against a 12v battery.

valid advise but the issue is the system is not mine. Owner just needs a inverter than can charge his battery from grid when available. I was hoping someone with a working idea of brand and model that does that will assist.

Good morning fellow enthusiasts,
I need the most budget friendly inverter that can

1. invert 12V DC into 220v AC
2. Use Grid power to charge backup battery when available and switchover to solar when appropriate.

Th set up is just 300w panel, PWM controller and 100AH battery.

{PASTED AGAIN FOR ATTENTION}

capnies:
Good afternoon engineers, please what can be used as box to house 4 -16
bigger lifepo4 cells like eve 100ah 150ah 280ah etc

plastic glass or plywood. Or repurposed metal casing.

dollarnaira:
I really wish you can sell these cells along with the usual mini active 1A balancers.

you mean those tiny things balance out unbalanced cells?

How big a battery can they handle in your opinion?

I have been muting the idea of using a SLA charge controller{preprogrammed} to charge LIFEPO4 and was already shopping for small LIFEPO4 BMS that can peg what goes into each cell at 3.65V or 14 6V of 4S.

What i discovered is there are cheap mppt charge controllers that work well but preprogrammed to setting close to LFPs.

Gel can be discharged to roughly 50% safely while Lithium {LiFePO4 specifically} can be discharged up to 80% safely.
That simply means 200AH GEL will only produce 100AH safely but only 125AH of LiFePO4 produces same 100AH of useful work.
LiFePO4 still looks more economical even with the very high cost.

How will it be serviced and maintained if underground? I hope this isnt a plan to conceal incompetence with reactionary lies.

Good morning fellow enthusiasts,
I need the most budget friendly inverter that can

1. invert 12V DC into 220v AC
2. Use Grid power to charge backup battery when available and switchover to solar when appropriate.

Th set up is just 300w panel, PWM controller and 100AH battery.

I remember that abacha loot that was shared back to Nigerians during covid. Testimonies within the church then flowed. Now they shared their own, nobody heard it.

oweniwe:
How do you deal with lightning please?

In April I connected DC phone chargers to charge controller load output section. One sudden lightning strike just before windy rain started blew all the chargers.

( Charge controller DC out - DC/DC buck converter - mobile chargers)

I thought my DC-DC buck converter could stop excess current if there's surge, .. for where? Lightning flew through it and the chargers bought out smoke in my front

Do you earth the charge controller output before passing to your devices?

Thanks for your anticipated response

Supply pictures of the controller and chargers. Also details like brand and max pv input.

Blocking an aircraft ia bad.

Endtime lovers.
How did the blogger validate the emptying of account part. I sense insecurity.

franchasng:
This is laudable, Nigerian government need to emulate this.


Ban Chinese people from operating small and medium scale trading businesses.


Chinese citizens should only be allowed to operate manufacturing, production and other large scale businesses.


They should be banned from opening small and medium scale trading businesses in Nigeria.


If this is not done, Chinese will soon Pursue Nigerian small and medium scale businesses from operation

why?

dollarnaira:
Importer exporter
Blade lifepo4 cells
China

with 0.5C of minimum wage? Na grace oooo.

tetralogyfallot:
8kwh lifepo4 pack couldn't power just 746watt Sumo pump? That's ridiculous bro, powering heavy appliances is not only done by the capacity of the battery, there are many factors surrounding it, look at your battery again and if possible upload the pictures here let's analyze where u got it wrong sir.

inductive load. Reaearch inductive load.

dollarnaira:
Both of us understand

i no understabd ooo. Please tease more, make i decode.

Laundering future proceeds of politics in the present. Can you show EFCC proof of funds or assets if challenged to do so?

1best:
na waoo

.. since 2016, no posts and you just jump in to quote me. Definitely the last guy i dealt with.

dollarnaira:
With your present level you can do it.

What level? Lwkmd.

dollarnaira:
Please order them and sell to us.
Simple!!!

lol. Good advise. I will heed one day.

dollarnaira:
Exactly the point.
Availability is the key.

for a start. I have seen few 21700 ads on Nairaland and other bigger form factors do come randomly.

The concept of the word backstabbing comes from the fact that people who are back spiritually are the main perpetrators of backstabbing trend. There is something consciously and subconsciously inferior about them that makes them backstab.

9ijaprince:
Yes,those are originally from tesla. Very good battery

The chinese have made theirs too. Reliable as Tesla's.

dollarnaira:
Both chemistry are still different.

I build packs so I know better.

This is practical.

No 3s for Lifepo4; only 4s and above.

I have never seen used 10ah lithium ion cells not to talk of higher.

There many Series for Lifepo4 and Li Ion (1S - 20S). It depends on what you are engineering. I can build 3s of Lifepo4 if i so desire. If i lack one cell in 4S i know what to do to charge the remaining 3S in series and power DC loads with it. Maybe not AC loads because inverters hover around the 12V mark closely so may reject 9.6V an below of the 3S.