simydan:


Thanks for the enlightenment! I really do enjoy reading your post...

I would have loved to bring in a very strong competition here because of the knowledge I have with products and cost advantage but don't have the capacity for now.

I'll really like to assist anybody who's bold enough to trust me in getting related products at an affordable price. Note that transaction and shipping period is usually a month or less...

For my kind of Inverter, I'll post the pictures for detail's and spec but it's quite pricey for a stand alone inverter...

I will really like to connect with you sir!

how much is this inverter? the 1kW?

simydan:


Go to alibaba type sendon on the search space, you'll get their products... For shipping it about 30k

Thanks a lot.

I have been pitched this battery by Felicity reps - it is indeed rated 200Ah - however a key red flag is the pack weight for 24v 200Ah coming in about 10kg short (if you check Lithium data sheets, on average a 12v 100Ah pack weighs 25kg at least).

I doubt if the Chinese manufacturer has stumbled on an advancement in tech allowing them achieve same performance from a lesser BOM - it is best to derate appropriately and look at it as a 24v 160Ah battery.

All in all a decent offering at the price - if you derate advertised capacity and cycle life by 80% (see it as a 24v 160Ah battery with a little over 2,000 cycles) , you still have a better deal than your average lead acid battery for thesame naira spent plus the advantage of the battery is already physically here - no wait time, no importation risk and no customs hassles.

ojeysky:


No offense intend but I have my doubt that this is truly 200AH lifpo4. Have you done a stress test to actually confirm if you can hervest close to 200AH from it when it's fully charged?

mctfopt:


I think the best bet is to check the no load DC draw of the inverter when it is not handling any load.
This is simple to do, just put on the inverter with no load, then place a clamp on the battery terminals and check the no load current draw, then multiply whatever you get with the battery's voltage to determine the power consumed on no load. This is the idle power of the inverter, of course the inverter's display won't show this.

Thanks

I'll check just need to get a new clamp meter

netotse:


how much is this inverter? the 1kW?

Estimated price should be around 35k to 40k sir. Not certain until I am given a quote but it should be within that range.

I am not aware that an inverter can be 100% efficient and have zero battery draw while fully powered on and ready to work - consider the physics of your assertions! Where is the power to light up the inverter LCD screen panel display and the circuitry that updates real time load consumption coming from?

Surely the battery is being drained no matter how little. What about the physics of DC to AC conversion? Surely a transformer or switched supply will have operating losses.

What is reasonable is a very low no load battery draw and this is achievable with nifty engineering and efficient components.

If you have a decent DC clamp meter, simply put it around the inverter battery cable when no load is powered and you will get an idea how many amps your inverter is drawing from battery - multiply amps by battery voltage and you get a pretty good idea of the idle watts draw of your inverter.

simydan:



Actually, if your inverter has a display that shows your load wattage, you should be able to see the load consumption as you add individual load.

To get the idle consumption, unplug all the load and see if there's still any reading on the display. If you get a reading then, that's you inverter idle consumption. If the reading is zero then, it means your inverter is 100% efficient.
What it means is that, it doesn't drain your battery when there's no load on it.

This pics shows mine with a load and without load.

NiyiOmoIyunade:
I am not aware that an inverter can be 100% efficient and have zero battery draw while fully powered on and ready to work - consider the physics of your assertions! Where is the power to light up the inverter LCD screen panel display and the circuitry that updates real time load consumption coming from?

Surely the battery is being drained no matter how little. What about the physics of DC to AC conversion? Surely a transformer or switched supply will have operating losses.

What is reasonable is a very low no load battery draw and this is achievable with nifty engineering and efficient components.

If you have a decent DC clamp meter, simply put it around the inverter battery cable when no load is powered and you will get an idea how many amps your inverter is drawing from battery - multiply amps by battery voltage and you get a pretty good idea of the idle watts draw of your inverter.

Hmm.....!
I guess it's time to reinvest in tools... Thanks so much

It is true that a piece of AC equipment may consume higher or lower watts per time depending on how much work is being done per time.

However, the reason is not the battery voltage at the DC side - if power draw in watts is constant, you will see higher DC amps as the battery voltage drops and vice versa.

It is best to have a good clamp meter handy to help demonstrate these concepts - the variations in wattage you see on the inverter display are due to a mix of variable power draw by downstream equipment at different levels of work done and the internal calibration accuracy of the inverter's measurement cicuitry (the inverter internal circuitry is DC powered and accuracy may be thrown off over time and also as supply voltage rises and falls).

Interestingly, all measurement instruments (inverter circuits, AC/DC clamps, in line/shunt based watt meters e.t.c) all have varying levels of accuracy and precision built into them and these factory design levels also drift over time - with all these volatile data inputs what one needs is a fairly reliable indicative number suitable for one's specific application e.g the level of accuracy and/or precision required by a home user or industrial support engineer would vary widely from that needed by an equipment calibration lab working to achieve a NIST certification.

Fluke Corporation have a couple of excellent articles on measurement accuracy vs. precision and equipment calibration.

ceaser:


@ the bolded. I have explained it here before that I noticed that phenomenon.

Usually your load of 97 watts is at 12v nominal battery supply to the inverter. But as the battery voltage rises, the calculated wattage consumption commensurately reduces and vice versa. Hence you have around 78 watts consumption at around 12.8v/13.0v Inverter battery power.

If you can lay your hands on a lead acid battery that will supply you around 12.2v/12.3v to the inverter, connect it and check the wattage output on the inverter. You'd realize that it will have risen to close to your expected 97 watts consumption.

truthbetold22:


Fake people and fake reviews. I ll stop short of calling Kiekie a scam but he has the worse attitude of all the sellers on here. The more you attempt to push false reviews, the more the truth about your person will be revealed. We have not forgotten how you sold a used morningstar charge controller to Niyi as brand new!

A simple search on nairaland will reveal your true person so quit trying.

Lol your funny really funny you know that right. Who are you to judge me, you don't know what I have been through but you feel you can sit up there on your high horse to just come and say my review was not legit.. Truthfully I owe you no explanation because it wasn't your money I used to buy these batteries. It's a free world you could have chosen to voice your opinions on the thread but not come and slander my comment /review. Go find something to do than calling people a lair. I have said my own

simydan:



Actually, if your inverter has a display that shows your load wattage, you should be able to see the load consumption as you add individual load.

To get the idle consumption, unplug all the load and see if there's still any reading on the display. If you get a reading then, that's you inverter idle consumption. If the reading is zero then, it means your inverter is 100% efficient.
What it means is that, it doesn't drain your battery when there's no load on it.

This pics shows mine with a load and without load.

Hmm....I think you may want to double check that approach, unless the documentation specifically tells you that idle consumption is also displayed on the screen otherwise they normally are not displayed. Think about it this way, let's assume you've removed all load, I believe there is still at least 2 loads

1. The one for connecting the batteries
2. The display light
Not to talk of occasional fan spins.

No matter how low, those stuff will consume some power even if it's 2w.

Edit: I should have read ahead to see that this has been addressed. Unfortunately no delete option.

NiyiOmoIyunade:
I have been pitched this battery by Felicity reps - it is indeed rated 200Ah - however a key red flag is the pack weight for 24v 200Ah coming in about 10kg short (if you check Lithium data sheets, on average a 12v 100Ah pack weighs 25kg at least).

I doubt if the Chinese manufacturer has stumbled on an advancement in tech allowing them achieve same performance from a lesser BOM - it is best to derate appropriately and look at it as a 24v 160Ah battery.

All in all a decent offering at the price - if you derate advertised capacity and cycle life by 80% (see it as a 24v 160Ah battery with a little over 2,000 cycles) , you still have a better deal than your average lead acid battery for thesame naira spent plus the advantage of the battery is already physically here - no wait time, no importation risk and no customs hassles.

Most of the ones I have seen (including battle born) are actually less than 20kg so am not so worried with the weight. I am actually concerned with the price because if it is indeed true 200AH lifpo4 at that price, that is affordability right there! I certainly would go for it.

kiekie1:
LITHIUM BATTERY!

Felicity 24v 200ah lithium batteries. 3000 cycle life and can also be paralled !

Price : N300,000


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081-350-31951
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Nonsense Felicity. They've begun cutting off vital components in product to increase profit. Other battery manufacturers use digital voltmeters to ensure close monitoring of the battery but here they are, they used only battery level meter. This means you can't even tell at a glimpse what your lithium battery nominal voltage is (12.5v or 13.2v or 14.5v) or how the utilisation is going.

Nonsense.

But kudos to them sha for joining the LFP race to increase availability and affordability.of Lithium.

ojeysky:


No offense intend but I have my doubt that this is truly 200AH lifpo4. Have you done a stress test to actually confirm if you can hervest close to 200AH from it when it's fully charged?

Thank you for bringing that to attention. I know that price is the range of 24v 100ah.

But hey who knows, life might just be getting good and lithium might just be getting seriously affordable with that sweet price, if its indeed 200ah.

On further thought, the individual that placed that advert calls for some doubts in the quoted capacity especially if the capacity label isn't slapped on the battery.

eleojo23:
I have been eyeing this lithium thing for a while now and with these recent reviews, my mind is 80% made up to go for it. I just have to do a little more research to get all the answers I need. I might start with a small pack though, say 60ah.

I noticed there is lithium -ion and lifePo4 and some other lithium batteries. I read lithium-ion is the one with the tendency to catch fire, so going for LifePo4 is a safer option. Correct me if I am wrong @Caesar, simydan and other gurus here.
In practice, how far can you really discharge this type of battery? 50%?, 80%?

Lithium of all types give impressive performance cycle-wise, charge-wise and DoD-wise.

Even though what you put in as charge is what you should expect to get as discharge, you don't need to be afraid if you are unable to charge it to full every blessed day cos it has no sulphation problems.

DoD, well, for the 3 years I've been a user of lithium iron on various small levels, 100% DoD has not really been harmful to the battery in the way it will affect lead acid. Of course the recharge cycles of Lithium is not unaffected by the DoD, but it is not something that steals your sleep like lead acid does.

It tolerates high recharge current and not beset by the recharge current limit problems of lead acid chemistry.

However as you have 10,000 cycle lithium, so also do you have 5,000 and even 300 cycles lithium. It's part of quality determinants and a seller may claim 300 cycle as 5,000 and sell it to you as such.

In terms of safety profile, charge density, DoD, and of course cost: - Lithium titanate > LFP > Lithium Iron.

justcallmenuel:
218litres Bona deep freezer available, #160 000. Contact us on 08168986461

Share the technical specs of the freezer nau. Àbí is it not because of energy efficiency that you market the freezer?

Wattage consumption and operating DC voltages will do for a start.

simydan:



Actually, if your inverter has a display that shows your load wattage, you should be able to see the load consumption as you add individual load.

To get the idle consumption, unplug all the load and see if there's still any reading on the display. If you get a reading then, that's you inverter idle consumption. If the reading is zero then, it means your inverter is 100% efficient.
What it means is that, it doesn't drain your battery when there's no load on it.

This pics shows mine with a load and without load.

@ bolded. I am not sure it's that simple.

I have a MSW inverter that has a display that does exactly that and I don't consider it 100% efficient. I think the best way to determine that is if you use a clamp meter on the wires from the battery or at worst an in-line shunt meter between battery and inverter.

By the way, I don't think there is any 100% efficient machine. The heat that comes from the working inverter has the effect of reducing the efficiency of the device and that heat which is of course unusable to power your devices has gone to waste.

NiyiOmoIyunade:
I have been pitched this battery by Felicity reps - it is indeed rated 200Ah - however a key red flag is the pack weight for 24v 200Ah coming in about 10kg short (if you check Lithium data sheets, on average a 12v 100Ah pack weighs 25kg at least).

I doubt if the Chinese manufacturer has stumbled on an advancement in tech allowing them achieve same performance from a lesser BOM - it is best to derate appropriately and look at it as a 24v 160Ah battery.

All in all a decent offering at the price - if you derate advertised capacity and cycle life by 20% (see it as a 24v 160Ah battery with a little over 2,000 cycles) , you still have a better deal than your average lead acid battery for thesame naira spent plus the advantage of the battery is already physically here - no wait time, no importation risk and no customs hassles.

Baba Niyi don already get the scope. The weight is a give away with lithium. Even the small price may even affect the life cycle. What if it's just 400 effective life cycles when better lithium dey do 5000 cycles plus (that's like 12 years plus of effective use before you even reach the 20 percent degradation level)

Last year I bought a used 40ah LFP that the manufacture date printed on it is 2012. Boy does it still ride like a stallion.

NiyiOmoIyunade:
It is true that a piece of AC equipment may consume higher or lower watts per time depending on how much work is being done per time.

However, the reason is not the battery voltage at the DC side - if power draw in watts is constant, you will see higher DC amps as the battery voltage drops and vice versa.

It is best to have a good clamp meter handy to help demonstrate these concepts - the variations in wattage you see on the inverter display are due to a mix of variable power draw by downstream equipment at different levels of work done and the internal calibration accuracy of the inverter's measurement cicuitry (the inverter internal circuitry is DC powered and accuracy may be thrown off over time and also as supply voltage rises and falls).

Interestingly, all measurement instruments (inverter circuits, AC/DC clamps, in line/shunt based watt meters e.t.c) all have varying levels of accuracy and precision built into them and these factory design levels also drift over time - with all these volatile data inputs what one needs is a fairly reliable indicative number suitable for one's specific application e.g the level of accuracy and/or precision required by a home user or industrial support engineer would vary widely from that needed by an equipment calibration lab working to achieve a NIST certification.

Fluke Corporation have a couple of excellent articles on measurement accuracy vs. precision and equipment calibration.

Thanks for the incisive input.

spartacus11:


Thanks Bro kindly share pics of d inverter or a screenshot from the store in Aliexpress u got it from

Price seems to have gone up by around 2k

ojeysky:


I am interested in the 24v lithium, do you mind sharing more details? Looks like lithium are trending towards affordability

Be likely getting it from the same supplier that I got those 12v LFPs from once his consignments come in March/April.

mctfopt:


Thank you for the comprehensive reply, you just answered my question on why I wanted to know the MPPT SCC, I wanted to see if it has features like ability to set charging voltage, as mistakes in charging voltage can lead to the failure of the expensive batteries. Do share with us when the battery gets back to the market. Thank you.

In my own case, the manual says once you edit any settings on the SCC and after saving it, you need to disconnect it from the battery and re-connect for the new settings to take effect. I don't know if yours will follow the same manner.

Pls note that you either do that at sundown or if you must do it at daytime, ensure you first switch off your solar panel-SCC MCB or disconnect your solar panels from the SCC before you even think of disconnecting the SCC from the battery.

All my senses were extra alert when I was doing that, all in an effort not to commit that easy-to-make mistake.

ceaser:


In my own case, the manual says once you edit any settings on the SCC and after saving it, you need to disconnect it from the battery and re-connect for the new settings to take effect. I don't know if yours will follow the same manner.

Pls note that you either do that at sundown or if you must do it at daytime, ensure you first switch off your solar panel-SCC MCB or disconnect your solar panels from the SCC before you even think of disconnecting the SCC from the battery.

All my senses were extra alert when I was doing that, all in an effort not to commit that easy-to-make mistake.

At bolded, experience they say is a great teacher, who wants to fry their SCC??

ceaser:


Lithium of all types give impressive performance cycle-wise, charge-wise and DoD-wise.

Even though what you put in as charge is what you should expect to get as discharge, you don't need to be afraid if you are unable to charge it to full every blessed day cos it has no sulphation problems.

DoD, well, for the 3 years I've been a user of lithium iron on various small levels, 100% DoD has not really been harmful to the battery in the way it will affect lead acid. Of course the recharge cycles of Lithium is not unaffected by the DoD, but it is not something that steals your sleep like lead acid does.

It tolerates high recharge current and not beset by the recharge current limit problems of lead acid chemistry.

However as you have 10,000 cycle lithium, so also do you have 5,000 and even 300 cycles lithium. It's part of quality determinants and a seller may claim 300 cycle as 5,000 and sell it to you as such.

In terms of safety profile, charge density, DoD, and of course cost: - Lithium titanate > LFP > Lithium Iron.

Still speaking of the cost and life cycle of the Lithiums

ceaser:


Still speaking of the cost and life cycle of the Lithiums

I am actually eyeing one of those lithium batteries on AliExpress. I just hope shipping won't be a problem when I eventually order it. I am scared of customs wahala.

ceaser:


The 120ah is outside. Can get clearer pictures in the morning.

guys please stay away from this battery. I will upload pictures later

JUO:
guys please stay away from this battery. I will upload pictures later

Alright, we await the pictures.

ceaser:


Thank you for bringing that to attention. I know that price is the range of 24v 100ah.

But hey who knows, life might just be getting good and lithium might just be getting seriously affordable with that sweet price, if its indeed 200ah.

On further thought, the individual that placed that advert calls for some doubts in the quoted capacity especially if the capacity label isn't slapped on the battery.

That's very correct bro! That price is actually for 24v 100ah LFP.

Another thing to note is, this pack is made from metal not plastic, that alone adds to the weight.

A typical 24v 200ah should weight over 50kg with that kind of casing.

I personally had a supplier who offered me a 12v 100ah with metal casing and a digital display for 80k factory price but i didn't buy because of the weight because it will cost me more on shipping via air freight since I don't use sea shipping... It weighs 24kg for 12v 100ah while the plastic casing weighs 13kg.

It will really be nice if they start with smaller units to aid affordability and quality test... That way it will be easy to try before coughing out that huge amount money for a larger unit.

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Solarworld 280W mono= 5 units left (70,000)
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Kexs:



Lol your funny really funny you know that right. Who are you to judge me, you don't know what I have been through but you feel you can sit up there on your high horse to just come and say my review was not legit.. Truthfully I owe you no explanation because it wasn't your money I used to buy these batteries. It's a free world you could have chosen to voice your opinions on the thread but not come and slander my comment /review. Go find something to do than calling people a lair. I have said my own

Hello Boss , i myself do not know that person or reason why he is really bitter at himself. Pls as an old time Nairalander, pls let's ignore some unnecessary posts for serenity sake ! Remain blessed

Hello amazing people and great forumites , it's been real tasking making sure i satisfy most of my clients needs / orders who commit so much cash & get their products in return ! Apologies to few out of millions who view but do not type that i couldn't attend to due to very busy schedule . I don't think anybody in God's name will come out and say I absconded with his / her cash for countless years of transactions done with me.. Issues of warranty on brand new items purchased by company who offered us warranty are treated with hitches unless for few companies who don't offer warranty or basically on fairly used batteries which I rarely offer written warranty but sell in good faith as most already know !
We've many who committed cash and got fast supplies and few with saddist traits who did very little or no deal and felt that coming online daily for tales / Epistles of unrealistic transaction which if at all it was as they paint it to be , I do cash refunds to be factual ! I am physically present in Lagos State and likes of Abunafiu, Niyi etc has been to my personal aboad . I also have so many who has met with me in person Saipro, Barezzi, Dam5reey, Pranil, Prime,Hisenjos, Richmond, Ola, enough installers and renewable energy enthusiasts etc and Boss George , Rovar who've transacted with me and no issues till date !
We face some challenging issues sometimes in our line of business as I have most who know absolutely nothing about solar product vis-a-vis quality , they commit cash to you under "abeg help me get something good under trust" like someone who I have transacted millions with and he needed a Korea car battery. I gave him option of everstat battery but after viewing pic he sent and terminal polarity position, I opted in for a quality Korea product called Sebang . The client issue was that he doesn't know sebang and I would have told him battery name before sending far North which I said "sorry for that" & also mentioned he can send back and I refund cash back since the whole business was just for old time sake not necessarily for humungous gain ! The client operated on deaf ears and threatened he was a lawyer called to bar decades ago and would do xoxoxoxooxo if battery fails but I only kept my cool and he has been here calling a fellow man like him names like he was his creator or the mistake/error of communication can't ever be forgiven by him as a mortal being !
The way Prime mentioned to someone here if he needed flames office contact, he can assist .. I deliberately sent receipt snapshot picture of a panel I got from popular foresolar warehouse on Yuletide break which all travelled but I tried my possible best to see client was happy.The picture was to show not all foresolar panels have the tag "foresolar" on it's nameplate which I confirmed from their CEO "Mr Ifeanyi) , the client never believed even after knowing I don't ever rebrand since my years of existing on this wonderful forum ! The second issue was little change which was gotten from my routine logistics bid just to use for my stressful shuttles that holiday but client felt it's another issue forgetting it's where someone works - the person feeds from and even a cousin,friend,sibling can also do that when it comes to business which is no criminal offense .
It has been a lovely family in here .I advice let's learn to live & let live ! You ain't anybody creator in here and can't be a lopsided / partial admin in minor or bit juvenile cases as we havemost who don't type here but are observers seeking for real serious cases not tantrums as kids do ! I don't feel moved by been JUST and UPRIGHT .. If you've any serious personal grieve with a fellow being , i am physically available for dispute resolution to reduce much unnecessary noise here and those who which to transact will always do by God's grace ! Why must someone call a fellow man a conman for a used battery deal without warrant receipts! Fraud for no single transaction which anyone absconded with cash ? Someone mentioned "it is finished" like he has the last say on partial judgement here . Funny gist is that the remaining few who type or do unnecessary LIKES on negative post like a saddist does, I do not know them not owe them anything to be keen! See few snapshot attachments below.. I have most who have driven down personally to my Abule Egba , Lagos State location for various item(fullriver,Ritar batteries etc) pickup and I see no reason for side talks here like infants do forgetting that the rough sea only grooms or builds brave sailors!
If I officially owe you a denari/penny , bring in on and I will PAY you OFF as a Freeman which I am!

Less I forget >> Am always available for renewable energy transactions as usual !

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The older the wine - the sweeter ! Only men with great mind will understand ..

Those who make mention of warranty clause , ask them what product was that or who is the sole importer to ascertain if the seller is the culprit of the company .. Call on us today as usual ;

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zeestone99:


Microtek India 100k
Monbat Belgium 85k

Happy buying

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