₦airaland Forum

mcTrinity:
Hi mctfopt,
I doubt every member need migrate to email to be enlightened. It's a vital info that everyone need to have access to.

Kindly find attached (Pic 1) what should be his layout based on the details he provided. With the looping method ensure the battery bank cables for +ve and - ve sides are NOT taken from the same string. Take one from the 1st string and the other from the last string. The first string shows the connections for a typical HA02 Battery Equalizer (or Balancer). The blue dotted lines are the links to form the "one giant bank". It ensure a more balanced setup, as he's rightly said. It must not necessarily be same size as the battery serial interconnecting links. The battery serial interconnecting link cable can be 35mm.sq or 50mm.sq, whereas the parallel interlink cable can just 6mm.sq or 10mm.sq (in Efuro's case). I also use 10mm.sq or 16mm.sq

Please, credit should go to oga Niyi... Sometime ago, I was faced with a serious unbalanced issue in a new setup for a client and Niyi took out time to explain this interlinking between paralleled strings. I've seen it depicted in HA02 manual but never give it a thought, until Niyi made it easy.
Accordingly, you can use 1#, instead of 2#, HA02 for a 2-string battery bank.

Moreover, Pic 2 is a better method to parallel the strings. Each string is independently paralleled with same length and same size cable to a common busbar... Cheers

This is complex. I doubt a picture would've done it justice. Thanks a lot for taking out time to drop a schematic. It now makes it easier for anyone to accomplish same following this your detailed drawing. Thanks a lot. Man will just have to spend more on wires, the cost of which pales in comparison to that you'll incur if you use the traditional 48v connection.

Thanks to all y'all sharing premium info for free

feflo:
Just got a job to power a 3-phase medical equipment. The equipment is the first of its kind in Nigeria and third in Africa.
I will post pictures here as the job progresses. I'm using a 15kva 3-phaae online interactive inverter

I've heard of Kartel. I hope they've got great after sales service.

feflo:
that is the equipment above, its a FIBROID treatment equipment, it removes fibroid without any invasive surgery. Its proudly powered by the 15kva 3phase inverter we deployed.

Wow, where is this clinic located? I love non invasive surgery. The risks becomes very less when you employ most of this alternative to surgery.

tess1:
Good evening.

I want an advise from you.

I want to buy an item that weighs about 25kg from Aliexpress. How can they send it through to me through Nipost? Or is there any other cheaper and reliable way to send it down to Nigeria?

I'll suggest you use third party shipper. But note most of 'em will charge you approximately $10/kg to ship via air. I hope whatever it is is worth you spending $250. But if time is not such a major issue, you can also consider shipping via sea from these same third party shippers. But get ready for an approximate wait of three months (though most will say 50 to 60 days) by just add one more month so you don't get disappointed when the waiting gets longer (it usually does). I've not received any goods that weigh more than 2kg via regular NIPOST (as I find AliExpress shipping of such weight to be downright too expensive). As for third party shipper to use, I do not recommend any at the moment As all of them has one or two blackspot, but that does not mean they don't deliver, they do. Just manage your expectation.

tonyaks:
Pls do you have and idea of how long it took for customs clearance

After one month and there was no change in tracking, I stopped tracking it. So, no I did not know how long it stayed in customs. I just got a call to come to the post office to pay EMS duty and to pick the package.

Dwaynestefan:
This new Development makes me want to order from AliExpress right now...
They better ship mine with this Tranex ***

Two packages ordered two weeks ago are already in the country....this their speed post is super cool

pavoda:
House, I am getting really worried, I sent a Package from Europe to Nigeria on the 12 May, upon tracking the package it arrived Lagos on the 9th June this month and was handed over to customs a Lagos IMPC, till date that status has not changed, Anyone with experiences like this and what do you advice I do in this situation, it’s not usual in my opinion to have packages in Customs custody for such a long time is it?

I recently got a package from France.
Here's the timeline:

13th April 2021 ...Paid for package

28th April .....Package was shipped

16th June ...Picked package from EMS with their usual crazy charges attached.

It took a total of 49 days...That's 1 month and 18 days between when they shipped and when I received it. But between order and when it was shipped that's 64 days.


I didn't even bother to track the package.

efuro:
Reach out to me @
efurosibina@gmail.com
I will give u with supporting pix

Alright. Thank you.

efuro:
Aaah it is nothing special. I got the looping idea from 24v fangpunsun battery balancer.
And tried it. Few months thereafter, I realised that Oga Niyiomolyunade understood the trick too because
He elaborated on it. He specifically said batteries will work like a giant battery bank. He was very correct. That was my experience too.
Coming to schema
At 48v, you have 5 pararell of 200A batteries making 48kwh of well balanced storage.
Just loop wire at every point of 12v , 24v & 36v across the 5 pararell. In my case I got 10mm wire for the looping
This looping across 5 pararell ensures that at each point of voltage eg 36v is 36v irrespective of place it is being pararelled whether it is string 2 or 5. Literally, looping balance out voltage vertically while equalisers balance out horizontally within each string.
Being DIY am pretty poor with explanation but I hope this suffices.

Edited
Mind you I said well balanced storage because my maximum over night need is just around 40% of the capacity (or 90% for 50% DOD rule for LA batteries which they're ) when on air conditioning. However, when not and it is just fans and lighting points, the bank is 98 to 100% charged the following morning. The daily cycle continues hopefully for the next 3yr having spent 3yr head on already. For now no fancy of lithium technology yet. I still dey ported to LA like the creator of this thread. So help God!

Thanks a lot for your explanation. Please can you add schema to help buttress this explanation?

investorMK:
While I was outside last night... Standing close to an electric bulb fly mistakenly entered my ear and couldn't com out I tried removing it but I was unable to remove it rather I pushed it inside.........

Pls what do I do to remove it?

Visit an ENT, don't put random stuff into your ear! Do not listen to "internet doctors" as most of 'em have zero idea of what the heck they talking about!

NiyiOmoIyunade:
It has been a while I touched a flooded battery but I am pretty sure you cannot randomly top up electrolyte after the initial fill up to commission the battery for use.

Electrolyte and distilled water are not interchangeable as far as I know.

If you were trying to rejuvenate a battery, one may add fresh electrolyte after first dumping the old fluids and 'flushing' the cells a few times or if there was some liquid spillage and the SG needed to be restored to spec one could add the right amount of electrolyte.

The reason I'm loving this forum is that premium info that you don't know you need but still get it at a freemium

Ceaser01:
Talking about electric cars in Nigeria, we just may have keyed in early than we anticipate with a new entrant into the fray. My statement is safely assuming ignoring the Hyundai Kona which is from mainstream car maker and with a base price on the high side.

Sorry, won't be able to post the link as the 5tvpid bot struck again with the main account concerning this same post.

The bot is paranoid

Though 5 year battery life is kinda small, but for a start we can manage it if it's competitively priced. Nothing beats charging your EV from your renewable energy and hitting that road without a thought for gasoline.

Someone I know is currently building an electric tricycle. Bought the batteries, motor, and controllers in China. They will do a local fabrication of the body in Nigeria.

efuro:
Not using 2v batteries oo. I run my setup on 20 solid units of 200A batteries at 48v
That large volume of batteries are well balanced using looping apart from using 5 equalisers. This prevent one battery running away from others. They dip and grow charge almost equally.

Damn, that's a huuuuuuuuuge bank of batteries. What make is this? If you have time you can share your schematic of your wiring.

Valto:
i have not used it, but dont waste money on that bro.

Thanks for this heads up. I wonder why it always comes with issues.

efuro:
Since ur curious to know.
I run 2 non inverter ACs on solar. 1.5 Hp in my sitting room (which come on day time from 10am to 4pm), 1hp in my bedroom (almost 24hrs or as I desire )
Am not yet on lithium technology because my 3yr old 1000AH lead acid serves me well on 6kw PV. My servere over nite dip has never gone below 48.4v in the last 3yr. I am practically of grid. My AEDC recharge of 3k still dey prepaid for almost a year now. I ask you do you think I need to buy electricity from dem? That their yeye 3k can only last me 3 to 4 days of using my bedroom AC.

So it is renewable all the way ooo. No regrets, except for fake products in the market.

That's good to hear. You guys are making this decision easy

What's the brand of the 2V 1000AH (I'm assuming it's 2v) and what system voltage are you running?

Those big capacity batteries usually pack a punch.

Any real life experience from anyone who has used any 5000BTU window unit air-conditioner?


https://www.youtube.com/watch?v=7UHLvVj_glQ

Anyone got a link where I can buy a portable (300w to 1000w) pure sinewave 12V transformerless inverter with charger function?

ceaser:
I'm only working at probably importing one, not DIY yet. I feel the imported could serve as a pedestal for future DIY.

When you do, remember to buy the one with a good motor (Bafang, Bosch, etc). And of course a good battery pack (Samsung cells, etc though you can DIY this part).

remizvxcq:
which Washpap group? kindly share.

Very interested in EVs. These will be the next accomplishment of the solar cadres. All that excess afternoon solar going into your transport!!
Then go bigger, and set up a charging station for your neighbours.

Africa will shock the world with adoption of affordable EV especially bicycles (mountain bike style for all terrain), keke trikes (for commercial taxis), and scooters (for neighborhood runs if you have smooth roads). Let me know if you want to make a business of these.
You are not alone. You are ahead.

Me, I no get money for isho, i dey plan ile-ala ja gogoro!! And not gogoro the Asian battery swap e-bike mobility business, either.

I've gotten two ebikes, we like to go renewable all the way

My WhatsApp group comment is just a way to say the brands I mentioned have similar pricing and sort of similar specification, not a real WhatsApp group.

adrusa:
I run a single 1.5Hp LG AC on my system. The AC is located in my bedroom and it works in bursts of 1, 2 or 3 hours, maximum of 6 hours per night. I tend to do more of 4 hours than 6 hours. I have a total lithium power of about 600AH and I'm not shy of pushing it down to as low as 30%.

You are a man after my neighbour's heart

Dude likes to push everything to its limit. The 600AH is it running at 48V nominal voltage?

litaninja:
Chai! Baba, cut Lithium for me na!

You can do even more. If you want to. Chinese making it easier by the day.

NiyiOmoIyunade:
At that time I had 48v 800Ah of Gel batteries, PV array was 7.56Kw.

I have been looking at an electric bike called a 'Rungu Kilimanjaro' - something for recreation and exercise but with enhanced stability (2 front wheels) - I am a bit of an extreme sports fan - ride quads and jet skis a lot.

Rungu is rugged, I'm thinking of getting a RadRunner

The gel battery you've got then was pretty huge. That's why I often don't advise people to run their ACS off their smaller systems.

NiyiOmoIyunade:
I have been nearly 100% offgrid over 6 years and running ACs off my system for ~4 of those years.

The system performance when using lead acid was average, I would get a little over 2 years from my battery as the battery was deep cycled daily with 2 ACs running almost 24/7.

Now that I have ported to Lithium the experience is far better - 18months 100% OFFGRID running 2 units 1hp ACs 24/7 and another 5 ACs opportunistically off a 48Kwh Pylontech bank and the batteries have performed outstandingly - no discernible degradation, no capacity loss and cell level state of health in excellent shape.

You really have to size the system appropriately viz number and wattage of panels, battery size and BATTERY TYPE - certainly Lithium batteries do far better in high discharge rate applications - with proper design, I was able to dump all my inverter ACs in favor of standard ACs so I could enjoy better cooling performance - so a trade up in all aspects for me - everyone's situation and mileage may vary though.

With all the ruckus about Deye inverters, I could not help but pickup a new 8kw unit as well as a couple of new Lishen 280Ah cells to try things out - once I have the system integrated into my existing one, I will be in a position to run at least 4 1hp ACs 24/7.

By now, I have run out of spare internal organs to sell to afford Lithium so I had to sell off some Pylontech bricks to finance the Deye inverter and Lishen cells.

I find that most folks do not really run their ACs 24/7 or overnight - on average you would need about 1kwh of battery storage per 1hp standard AC and about 600wh of battery storage per 1hp inverter AC if running overnight (you get better mileage if you allow the inverter units run continuously). Day time use you need at least 2kw PV to run 1hp AC and size up to 4kw or more if you need to replenish battery capacity that was spent overnight to power thesame AC.

The ugly truth about offgrid living with high energy consumers e.g. ACs is that you will likely need a generator from time to time - the premium inverters like Victron incorporate a power assist feature so that you can use the smallest possible generator size e.g a 5kva generator to drive a 15kva inverter AND automatic Gen start/stop based on SoC, battery voltage and AC loads so that the Gen can run the minimum possible amount of time - you can even set exercise hours so that the Gen battery and internals stay ready for use any time.

Thank you for this super detailed response. I may just get me some Deye inverter as they have been in my cart for so long.

When you ran off lead acid battery, which size of battery did you use that needed change after two years and what was the size of the PV system?

I understand the need to run off regular AC as I've noticed that you trade performance for low energy when you go the inverter AC route.

Lishen, CATL, EVE all happen to be in the same WhatsApp group for most DIYers across the world.

I have another question for the house, is anyone here into EV or at least the younger bro electric bicycles/scooter etc? I hope I'm not alone here. Lol.

Valto:
guess it is 32pcs eve 280ah cells.. the 310ah should be CATL...

The 310 is CATL...you know your Chinese

kolagbemi:
Hello guyz,

Please i need your advice, i recently ordered vehicle parts on AliExpress and one of the stores I bought from has some other parts I needed.

Now I want to buy from him again but the items i want to buy from him are not listed on AliExpress and he's not ready to list the items on AliExpress....he said they don't use AliExpress for such items with lots of money. And as naija man wey don learn in hard ways, I am not ready to send over 1m to someone I don't know beyond whatsapp....

please how can I go around such transaction. I urgently need the parts.

I've pleaded he list the items or allow me pay via PayPal Buyer Protection but he rejected all. He wants only direct transfer and 100% payment before shipping.

Please what should I do....do we have Nigeria companies in China who help in this type of transaction.

Do we have individuals who can intermediate between me and the seller?

Please help guyz.

My major fear is fraud....make him no carry my money run.

Try Alibaba. Use third party shipper to ship your product. Good luck

ojeysky:
280w X 9 - Sunfit panels
380w x7 - Prime panels

Both are made in china...Deye inverters has started showing up more in naija....I know someone locally who now sells 8kw for 860 to 880k

Your neighbor Sabi be that. Those looks like 280 or 300ah cells. You both Enjoy!

That's 280AH, he ordered 310AH again. In lithium we trust. Lol

dejidotun2000:
At least two people on this forum do, niyiomoiyunade is one of them. Check his signature to see his setup.

Thanks. That's good to hear. Abeg others running AC on their setup should please contribute.

ojeysky:
I run 2 ACs, they are both thermocool 1.5hp, one is inverter AC and the other is normal. I currently have 280AH LFP 48v (not the nominal voltage) with 5.2kw PV and a Deye 8kw. They serve the household appliances not just the ACs

This is awesome to hear. The 5.2kw PV is it premium make or just Chinese type? I do see Deye online, didn't know they make really cool inverters. My neighbour just had these bad boys delivered.

TheSoothSayer:
I just got the edifier tws1 Pro yesterday. Delivery came early from Jumia. The noise cancellation (passive) is second to none, Even without music playing. You'd like it. The sound quality is a bit too treble bright, but can be easily toned down with equaliser. Battery is cool 12+30 hours. The only downsize is you should never use it on a busy road. Last night a bike passed beside me and I didn't hear it, only saw it when it came to view. Another problem is that it creates pressure in the ears due to the seal it creates, but I'll get used to it. I hope

When you try the active noise cancellation of the Edifier NB2, you'll realise you can't use two and still maintain any conversation.

ekesonbatteries:
...

Is EverStart not car batteries? You can always specify so one don't buy it as a deep cycle battery for renewable energy storage purposes.

tetralogyfallot:
Have them in large quantity.

Are these batteries new?

Beware of some posts in this thread, scammers are here baiting prospective victims with tall tales of how they made millions in a day. Just be very careful of who you PM or contact privately. My 10 Kobo