₦airaland Forum

dollarnaira:
There is a difference between lithium ion and lithium ion phosphate.

26650 for example is lithium ion phosphate -lifepo4

You are wrong sir.
Liitokala 3.7V 5000mah

Google the above and confirm if it exists.

There is li ion and likely LFP(lithium iron phosphate).

BangaRice:
You are wrong sir.
Liitokala 3.7V 5000mah

Google the above and confirm if it exists.

There is li ion and likely LFP(lithium iron phosphate).

You should know I meant iron not ion

Lithium ion is different from Lithium iron Phosphate

dollarnaira:
You should know I meant iron not ion

Lithium ion is different from Lithium iron Phosphate

thats what i replied to. 26650 exists for both. Have you googled it?

BangaRice:
You are wrong sir.
Liitokala 3.7V 5000mah

Google the above and confirm if it exists.

There is li ion and likely LFP(lithium iron phosphate).

This is just 5ah i.e 5000mah
Which exist no doubt.

I am talking of a single lithium ion at 15a and above.

Modified...

BangaRice:
thats what i replied to. 26650 exists for both. Have you googled it?

Ok true to this.

My main argument is the existence of lithium ion as high as 40ah

dollarnaira:
Ok true to this.

My main argument is the existence of lithium ion as high as 40ah

taken. But my initial post was about the error of DIYers focusing on 18650s too much. You can get any form factor and replace 18650s with it as long a it fits into your range of AH and budget.

If i desire 50AH(50,000mah) in 3S for Li ion, and i have only 2,000mah(2AH) cells. I have to solder much cells and likely deal with framing issues. Also issue of one cell giving up before others creates a nightmare for replacement exercise. All these can be mitigated by going for higher single AH valued cell. I have sseen 46AH of LI ion in market. Thats 23 18650s of 2,000mah packed in one single form factor.

BangaRice:
taken. But my initial post was about the error of DIYers focusing on 18650s too much. You can get any for factor and replace 18650s with it as long a it fits into your range of AH and budget.

If i desire 50AH(50,000mah) in 3S for Li ion, and i have only 2,000mah(2AH) cells. I have to solder much cells and likely deal with framing issues. Also issue of one cell giving up before others creates a nightmare for replacement exercise. All these can be mitigated by going for higher single AH valued cell. I have sseen 46AH of LI ion in market. Thats 23 18650s of 2,000mah packed in one single form factor.

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.

But there are several 23ah to 314ah infact 618ah ( just came out).

I have about 340 cells at 12v going to 3yrs. I don't need to start searching for dead cells. Dead cells remain dead and as time goes on, capacity will drop.

You need deep knowledge to understand battery chemistry in PRACTICAL not THEORY and YouTube videos.

BangaRice:
are you aware there are other form factors available like 4680 with capacity of around 22AH-26AH?

Less soldering or spot-welding and faster experience.

Yes,those are originally from tesla. Very good battery

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.

But there are several 23ah to 314ah infact 618ah ( just came out).

I have about 340 cells at 12v going to 3yrs. I don't need to start searching for dead cells. Dead cells remain dead and as time goes on, capacity will drop.
w
You need deep knowledge to understand battery chemistry in PRACTICAL not THEORY and YouTube videos.

Lol. You are funny.

I know both chemistry are different. I did long long ago. I am not an empty youtube gobbler of theories.

What i was trying to point out is that for you to build your 340 cells pack or equivalent, you do not compulsorily need 340 cells. lol. Instead you can use 6 cells of 46AH capacity in 3S2P configuration to achieve similar kwhr or whr accordingly. You just need bigger cells and that's what i pointed out to Tetralogyfallout. There is also 4680 of around 22-26AH pioneered by Tesla.

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.

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

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

BangaRice:
Lol. You are funny.

I know both chemistry are different. I did long long ago. I am not an empty youtube gobbler of theories.

What i was trying to point out is that for you to build your 340 cells pack or equivalent, you do not compulsorily need 340 cells. lol. Instead you can use 6 cells of 46AH capacity in 3S2P configuration to achieve similar kwhr or whr accordingly. You just need bigger cells and that's what i pointed out to Tetralogyfallout. There is also 4680 of around 22-26AH pioneered by Tesla.

Here we are into DC to AC connection of minimum connection being 12v i.e 3s to power loads via inverters - 12v and higher.
Any cell can be of any configuration. No need for the back and forth. Let's stop.

What you see existing vs physical are two different things entirely.

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

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

BangaRice:
Lol. You are funny.

I know both chemistry are different. I did long long ago. I am not an empty youtube gobbler of theories.

What i was trying to point out is that for you to build your 340 cells pack or equivalent, you do not compulsorily need 340 cells. lol. Instead you can use 6 cells of 46AH capacity in 3S2P configuration to achieve similar kwhr or whr accordingly. You just need bigger cells and that's what i pointed out to Tetralogyfallout. There is also 4680 of around 22-26AH pioneered by Tesla.

Where you wan dey find this cells?

In Africa/Nigeria, it's always availablity that is the key driver of our planning or design.

Obnoxious2001:
Where you wan dey find this cells?

In Africa/Nigeria, it's always availablity that is the key driver of our planning or design.

Exactly the point.
Availability is the key.

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.

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

lol. Good advise. I will heed one day.

BangaRice:
lol. Good advise. I will heed one day.

With your present level you can do it.

dollarnaira:
With your present level you can do it.

What level? Lwkmd.

BangaRice:
What level? Lwkmd.

Both of us understand

dollarnaira:
Both of us understand

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

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.

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

Importer exporter
Blade lifepo4 cells

dollarnaira:
Importer exporter
Blade lifepo4 cells
China

with 0.5C of minimum wage? Na grace oooo.

I actually want to give him a try, but I need someone who has firsthand experience with him.
Have you bought any batteries from Mrreed? How was the experience and the BMS in particular?

ksmart027:
Try mrreed, he also sell cells

Brando16:
I actually want to give him a try, but I need someone who has firsthand experience with him.
Have you bought any batteries from Mrreed? How was the experience and the BMS in particular?

You are making enquiry about an expert?

There are real life reviews about him on the other thread.

Another seller again is Valto. He practically lives here sef.

barezy:
Can you sell 1pcs for me ?
I needed either Gotion 15ah or Catl 23ah for my portable spot welding machine, I think the battery is weak

yes.we can sell one pcs for the following cells, gotion 15ah, Catl 23ah ,gotion 50ah , gotion 100ah , eve 141ah ,Rept 142ah ,gotion 314ah, the cells are also available in thousands. professionally fully coupled ones also available

Yes. I guess so.
Isn't that allowed?
I think it's good we ask questions of those who know, so they can enlighten us who don't.
Thanks for your response

dollarnaira:
You are making enquiry about an expert?

There are real life reviews about him on the other thread.

Another seller again is Valto. He practically lives here sef.

I need 18650 lithium batteries... with bms for 100ah

Brando16:
Yes. I guess so.
Isn't that allowed?
I think it's good we ask questions of those who know, so they can enlighten us who don't.
Thanks for your response

Super allowed

Large quantities of 18650 cells and BMS available, batteries are tested and have good resistance. 2600mah and 2500mah available in large quantity. anyone that needs can reach me on WhatsApp 08036771734.

9ijaprince:
Large quantities of 18650 cells and BMS available, batteries are tested and have good resistance. 2600mah and 2500mah available in large quantity. anyone that needs can reach me on WhatsApp 08036771734.

Who has bought from 9ijaprince before, how prompt and honest