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.

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.

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.

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.

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

Done.

officialfestus:
Done.

Good job,but the discharge and charging wires are too small

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.

@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?

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

dollarnaira:

Yes

thank you.

officialfestus:
thank you.

Ywc sir

officialfestus:
the capacity is just 40ah, by the way the wires for the discharge and recharge are pure coppers.

ok

High quality 18650 lithium ion cells are still available for N500 per cell.

My UPS turns on and off, after idling for 3 years, please what could be wrong with it?

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

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

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.

Hi,

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

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.

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?

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?

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.

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 .

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

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 .

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?

Who have a 8s BMS with active balancer?

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?

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.

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

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.

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.