₦airaland Forum

Peterlove11:
About 97% .......This is impressive.
After seeing your post, had to check mine. Damn the difference opor.
Mine ranges from 83% to 90%. Poor at low loads but fair a bit when the load is more than 1kw.
I feel the most objective way to check for efficiency is to drain battery from full to LVD and see the cumulative DC energy(Kwh) converted by inverter to usable AC energy (kwh)

I will be doing that soonest.. but this Deye dey perform magic oo. Even the MPPT super efficient.. A very good Toy..

Deye na better Soup oo..

Efficiency 97% DC to AC conversion stop wasting unnecessary power in conversion. Even 5kwh batteries will last very well.

1750/1800

If you have 5kwh batteries, this will mean you can use 4850wh on the AC side compared to most inverter with 87%, which gives on 4350wh.. a whole 500wh saved..

Another BIY installation completed...

Top Balancing Completed..
Cworth 12V 100ah has a new owner

[quote author=Dam5reey1 post=135291940]This guy is also sitting down here doing absolutely nothing.. I only Cycled 3 trice or so.

I will top balance it.. any one interested.. 160k

Sold..

This guy is also sitting down here doing absolutely nothing.. I only Cycled 3 trice or so.

I will top balance it.. any one interested.. 160k

If you are interested what the video carefully before you decide.


https://www.youtube.com/watch?v=hjrJo8RRpq4

fuckboys:
baba I was in your dm yesterday o before I bought the battery, at least you should have told me about the one you have for sell.

It could have saved me 30kbucks

All good tho.

Ah, I didn't know. I just taught about it yesterday evening when I got home.

Dam5reey1:
Anyways package back for anyone interested.
420k for the 3.6kwh Batteries

Battery Sold

omotoda:
Technically I don't consider this 800k a really good deal because someone here builds same 24v 280ah with Grade A cells and smart BMS for #840k.So why pay 800k for Grade B cells ,with no smart BMS?

Haisic Batteries does not look like Grade B. Though I didn't get full pictures more like Gotion, Hithium, Grade Cells 280AH complete..

The Real Grade B will be revealed soon

dollarnaira:
You get time sha.
I do whatever works for me. It is that simple. Infact one of my powerful ideas is under patent. No be everything person dey put for public.

I just dey put some things up jare. LFP wey I dey study daily since it got it 4 years. People go come dey quote AI or website that are trying to protect Dem self from warranty claims and all.

So they will recommend you to use their products like Eggs..

Anyways package back for anyone interested.
420k for the 3.6kwh Batteries

AI will say 3.5V too high to Float LFP, that you it will cause Heat in the cells and blablabla..

this is Temperature of battery I kept at 3.5V since yesterday. When it was full batteries temperature was reading 36 degree cause it just finished charge, I didn't disconnect I kept it floating at 14.1V, I was expecting it to have reached 50 degrees by now, based on what people say here. See the results attached.

omotoda:
What does this mean please?

It has Bluetooth that show the Serial number on the batteries when searched.

AndroBlaze:
Hmmmm, difficult to tear down, not a plus there.

Were you able to assess if it has a smart BMS?

That's a Plus, the Cells was well packed, protected and padded, which prevents it from issues, that may arrive from Terminal connections.

I am talking from a perspective of Experience, from resolving issues from clients, Laser welding best, Rubber on each cell, also casing serves as compression..

It's not smart BMS.. but Has Bluetooth for Serial Number Identification.

CuteMaro:
450k for 3.6kwh is not even as crazy as you think, Deriy offers similar price for brand new Grade A cells with smart bms and you can monitor voltage of individual cells

Apparently you can't have it all in this battery market .

Deriy no dey group, Haisic battery saving life..
Not sure any individual will lay their hands on Deriy at that price anymore.

Anyways, I just recharged the batteries back and it took in 291AH..

Selling it off at 420k, for willing buyer, I have about 20kwh batteries and 2 units of 100AH 12V I can play with. This 3.6kw is unnecessary to keep in Lab.

I am covering the warranty stated on the batteries in any case.


Teardown was aborted due to Build quality. Unless I remove Laser welding cells cannot be revealed fully.

AI and Theories everywhere..
Make una dey try test and show workings.

Never depend on what some inverter display shows. For PV generation.

Tested 2 inverter:
one overstates PV input while the other slightly understate PV input

AndroBlaze:
C- chatgpt

Unfortunately it seems Nairaland will not allow me to post any more pics, but Chatgpt pretty much said the same thing and I encourage you next time to arm your obnoxiousness with AI so you can start all the silly internet arguments you want to with all the ammunition you need.

Issue with AI you are quoting is that they are telling you what information they find online.

I won't be surprised if part of our conversations here was also accessed so it my not be a yard stick for making conclusions.

ajabani4allah:
Does the Haisic inverter have the ones with larger capacity?

8kwh 24V and 15kwh is available

uche393:
please what is the current price of Cworth 12v 100ah and is there any dealer here?

Dem don park am finish. Look for deals on Jiji.

aaforke:
Hi guys.

Any idea how much a SRNE 1.5kVa inverter and their 2.56 kWh lithium battery cost ?

With only 650k or you will get better deal at Haisic 1.5kva + 3.6kwh lithium...

SRNE hold your 1 million tight

HeavenlyBang:
Damn, that's much better than I expected. 3.7kwh for 450k is an exceptional deal. Even better than the cheap Cworth 100aH unit.

Good stuff.

Just saw that they have a 25.6v 314ah battery for 800k. Going to be very hard to beat that price.

BTW, for your battery tests, you should consider doing a load test at the start. Maybe 0.5C discharge for a minute or two to see if the battery handles it. Should be helpful for people who want to run things like microwaves or industrial blenders.

The battery is more than capable of 0.5C.. I don't bother doing High C rate cause at the end it's same results.

diabeticdeals:
Oh! Na you I dey always see for my FYP

Nice job sir.

Thanks boss

mctfopt:
At best this is a 3.7kwh so the 12v 280ah checks out. The 4kwh on the label is just the typical over inflation of capacity which most Chinese brands love to do.

Still impressed though.

Funny enough it's SON Label, it's the Chinese Label that carry 280AH

Ahyjo:
I went through the same ish. Dam5reey just coached me around it.

Glad it worked out!!

Knowledge sharing is on our vision..

So here is the Concluding part of the Haisic 4 19WH 12V Capacity test


https://www.youtube.com/watch?v=8cSSjUeU_CE?si=cDppLjQY0bGOsuDq

Peterlove11:
You have quite a number of valuable information on your YouTube channel. You can build a niche around these kind of test. Many Nigerians need guidance on what to get and at the most affordable cost based on proven data. Our upcoming Nigeria Will Prowse. Welldone

Upcoming
thanks for the encouragement, we aim to test as must as possible.

Final results coming to YouTube and TikTok..

Abi make we just conclude..

LVTOPSUN....

Quality cells and pack dey Naija..

Valto:
wow , i have something very similar , it is 200A charge and discharge JK bms used

Price?

HeavenlyBang:
0.13c recommended charge current and 0.25c recommended discharge are brutal.

Those are recommended. And that's basically what you will do with the bundled 1.5kva inverter. It charges at max 60A..
And discharge is max 150A on point Sha.

Haisic Almost ready..

This is our Testing Rig..

We also do Reviews. Not only Marketing and installations..
Coming soon..

AndroBlaze:
Yeah, he could have oversized his power bank to ensure that even if grid is not available for a day or 2, he is ok.

17kwh is what a bachelor without an AC could use from the grid in a week!

Though the size of the inverter indicates he has load shaaa

Assumptions Sha.

We have installed.. 15kwh 6kw in many varieties.. so This configuration does not suggest he needs 6kw panels

fuckboys:
omo you go need like 6kva of solar power to power this setup

Battery capacity and Inverter capacity has nothing to do with Panel size, he can even do No panel, 4, 5, 6 8, 16 if he wish.
What if Grid is available, or his load is only 300w average?