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Diy Lithium Ion Like-minds - Technology Market (4) - Nairaland

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Re: Diy Lithium Ion Like-minds by dollarnaira: 10:20pm On Nov 25, 2023
okikigsm:

Where u buy d soldering lead?

Bought this at alaba for #1400.

Buying soldering lead from AliExpress is always costly.i have tried it many times.

I bought a certain lead at Alaba for 6k a roll. Lead get level o as in it was too nice.

1 Like

Re: Diy Lithium Ion Like-minds by officialfestus(m): 11:36am On Nov 26, 2023
okikigsm:

Where u buy d soldering lead?

Bought this at alaba for #1400.

Buying soldering lead from AliExpress is always costly.i have tried it many times.
from a shop in Benin.
Re: Diy Lithium Ion Like-minds by officialfestus(m): 11:40am On Nov 26, 2023
sentix:
I can't seem to solder wires on my batteries
Any suggestions
I once experience that scenario, I went on youtube to see tutorials.
Although I bought a new soldering iron from aliexpress that heats up in 5 seconds and the rest was history.

2 Likes 1 Share

Re: Diy Lithium Ion Like-minds by sentix(m): 12:16pm On Nov 26, 2023
Please send picture of soldering iron or AliExpress link

Thanks 🙏🙏🙏

officialfestus:
I once experience that scenario, I went on youtube to see tutorials.
Although I bought a new soldering iron from aliexpress that heats up in 5 seconds and the rest was history.

1 Like

Re: Diy Lithium Ion Like-minds by officialfestus(m): 4:19pm On Nov 26, 2023
smiley

Re: Diy Lithium Ion Like-minds by officialfestus(m): 4:24pm On Nov 26, 2023
sentix:
Please send picture of soldering iron or AliExpress link

Thanks 🙏🙏🙏

NGN2,359.37 55%OFF | New Adjustable Temperature Electric Soldering Iron 220V 110V 60W Welding Solder Rework Station Heat Pencil Tips Repair Tools
https://a.aliexpress.com/_mO8kAM0

Re: Diy Lithium Ion Like-minds by officialfestus(m): 5:41pm On Nov 26, 2023
Done.

Re: Diy Lithium Ion Like-minds by obinna37(m): 5:54pm On Nov 26, 2023
officialfestus:
Done.
Good job,but the discharge and charging wires are too small
Re: Diy Lithium Ion Like-minds by officialfestus(m): 7:00pm On Nov 26, 2023
obinna37:
Good job,but the discharge and charging wires are too small
the capacity is just 40ah, by the way the wires for the discharge and recharge are pure coppers.
Re: Diy Lithium Ion Like-minds by officialfestus(m): 7:01pm On Nov 26, 2023
@dollarnaira

Please how do I make use of the buck converter?

Can use my laptop charger to charge it using the buck converter to step down voltage?
Re: Diy Lithium Ion Like-minds by dollarnaira: 9:15pm On Nov 26, 2023
officialfestus:
@dollarnaira

Please how do I make use of the buck converter?

Can use my laptop charger to charge it using the buck converter to step down voltage?
Yes

1 Like

Re: Diy Lithium Ion Like-minds by officialfestus(m): 3:28am On Nov 27, 2023
dollarnaira:

Yes
thank you.
Re: Diy Lithium Ion Like-minds by dollarnaira: 5:37am On Nov 27, 2023
officialfestus:
thank you.
Ywc sir

1 Like

Re: Diy Lithium Ion Like-minds by obinna37(m): 6:14am On Nov 27, 2023
officialfestus:
the capacity is just 40ah, by the way the wires for the discharge and recharge are pure coppers.
ok
Re: Diy Lithium Ion Like-minds by tetralogyfallot(m): 9:55am On Nov 27, 2023
High quality 18650 lithium ion cells are still available for N500 per cell.
Re: Diy Lithium Ion Like-minds by officialfestus(m): 9:38pm On Dec 04, 2023
My UPS turns on and off, after idling for 3 years, please what could be wrong with it?
Re: Diy Lithium Ion Like-minds by officialfestus(m): 9:10pm On Dec 10, 2023
It seems this board is faulty after idling for years without use, because the UPS tries to power on but it immediately cut off power.

can I make use of the transformer without the board?


valto dollarnaira
Re: Diy Lithium Ion Like-minds by Penuelseun(m): 5:42am On Dec 11, 2023
officialfestus:
It seems this board is faulty after idling for years without use, because the UPS tries to power on but it immediately cut off power.

can I make use of the transformer without the board?


valto dollarnaira
Nope, get another inverter or a new board, you can take the board to a technician to help you repair it

1 Like

Re: Diy Lithium Ion Like-minds by officialfestus(m): 6:11am On Dec 11, 2023
Penuelseun:
Nope, get another inverter or a new board, you can take the board to a technician to help you repair it
thank you, below is the picture of the board.

Re: Diy Lithium Ion Like-minds by aieromon(m): 2:03pm On Dec 11, 2023
Hi,

I want to know if I can replace dead batteries (10000mah) inside a mini UPS with lithium batteries.

Re: Diy Lithium Ion Like-minds by dollarnaira: 2:06pm On Dec 11, 2023
aieromon:
Hi,

I want to know if I can replace dead batteries (10000mah) inside a mini UPS with lithium batteries.
You can but do not charge with it.
Re: Diy Lithium Ion Like-minds by aieromon(m): 2:22pm On Dec 11, 2023
dollarnaira:

You can but do not charge with it.

That defeats the purpose. Do you have any idea where I can get replacement lead acid batteries?
Re: Diy Lithium Ion Like-minds by dollarnaira: 3:26pm On Dec 11, 2023
aieromon:
Hi,

I want to know if I can replace dead batteries (10000mah) inside a mini UPS with lithium batteries.
The above pix are lithium ion batteries

Do u want to replace the lead acid with lithium ion batteries?
Re: Diy Lithium Ion Like-minds by aieromon(m): 3:36pm On Dec 11, 2023
dollarnaira:

The above pix are lithium ion batteries

Do u want to replace the lead acid with lithium ion batteries?

Yes, that was my intention but you mentioned the charging issues.

What are my options? I need a portable UPS for router only.
Re: Diy Lithium Ion Like-minds by saint2ace(m): 5:57pm On Dec 11, 2023
aieromon:
Hi,

I want to know if I can replace dead batteries (10000mah) inside a mini UPS with lithium batteries.

Depending on the space of the UPS, you can use cylindrical cells as replacement for the above pouch cells. The power density defers as the pouch cells are more power dense and lighter in weight but all else remains the same, assuming my brain serves me right grin.

You should be fine with good 18650 cells, just solder terminals same polarity as the original and u're good to go...
Re: Diy Lithium Ion Like-minds by aieromon(m): 6:18pm On Dec 11, 2023
saint2ace:

Depending on the space of the UPS, you can use cylindrical cells as replacement for the above pouch cells. The power density defers as the pouch cells are more power dense and lighter in weight but all else remains the same, assuming my brain serves me right grin.

You should be fine with good 18650 cells, just solder terminals same polarity as the original and u're good to go...

What about the charging?
Re: Diy Lithium Ion Like-minds by Yujiro: 7:27pm On Dec 11, 2023
Who have a 8s BMS with active balancer?
Re: Diy Lithium Ion Like-minds by saint2ace(m): 11:04pm On Dec 11, 2023
aieromon:


What about the charging?

It should charge the same way you charge the pouch cells as both have the same charge profile and algorithm or is there another direction to Ur question?

2 Likes

Re: Diy Lithium Ion Like-minds by aieromon(m): 12:21am On Dec 12, 2023
saint2ace:


It should charge the same way you charge the porch cells as both have the same charge profile and algorithm or there another direction to Ur question?

This ⬇️⬇️⬇️

dollarnaira:

You can but do not charge with it.
Re: Diy Lithium Ion Like-minds by saint2ace(m): 6:01am On Dec 12, 2023
aieromon:


This ⬇️⬇️⬇️




U're the one with the equipment not him. I'm asking you how u used to charge it before the cells started bulging, that will allow anyone contributing to make an informed submission. Cheers
Re: Diy Lithium Ion Like-minds by aieromon(m): 7:10am On Dec 12, 2023
saint2ace:


U're the one with the equipment not him. I'm asking you how u used to charge it before the cells started bulging, that will allow anyone contributing to make an informed submission. Cheers

Ok, sorry for the mix-up. The mini UPS came with a basic charging cord, same type used by rechargeable lamps.
Re: Diy Lithium Ion Like-minds by saint2ace(m): 5:11pm On Dec 12, 2023
aieromon:


Ok, sorry for the mix-up. The mini UPS came with a basic charging cord, same type used by rechargeable lamps.

If the charging module inside is still functional then u'll have no issues with charging as the chemistry and charging behaviour for both pouch and 18650 cells are the same.

2 Likes

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