NewStats: 3,261,146 , 8,173,172 topics. Date: Wednesday, 28 May 2025 at 10:58 AM 5b37v

Machiny:
Have always wanted to make a smal pack for a rechargeable fan, but my concern is charger to use and where to get bms. Can you pls detail your process.

I will try my best

Machiny:
Have always wanted to make a smal pack for a rechargeable fan, but my concern is charger to use and where to get bms. Can you pls detail your process.

The charging profile of the fan fits. The problem is the bms that will cut off at 12v is the issue here. Unless you act as the living bms i.e monitoring spirit . I am a living bms though.

dollarnaira:


The charging profile of the fan fits. The problem is the bms that will cut off at 12v is the issue herRe. Unless you act as the living bms i.e monitoring spirit . I am a living bms though.

okikigsm:


Google that battery inscription to know d more abt it especially d capacity

I'm still checking Google for it's information.

Makaveli217:


You're welcome
I hope it's good. You can follow the steps I mentioned before, charge and test run it, if you have more, do the same for all, I wish you luck.

Thanks, really appreciated

dollarnaira:


The charging profile of the fan fits. The problem is the bms that will cut off at 12v is the issue here. Unless you act as the living bms i.e monitoring spirit . I am a living bms though.

funny. Even if one wants to watch hw wld u know wen it's 12v, even in a case its on while slpn. So no bms that can cut off at 12v?

Machiny:
funny. Even if one wants to watch hw wld u know wen it's 12v, even in a case its on while slpn. So no bms that can cut off at 12v?

Dc display meter

flotwz:


I'm still checking Google for it's information.

My reason is to know d actual ah.it will help.your calculation.

I have some like that,that d capacity was not written on it,then Google Inscription on it.

Battery diy is not that easy o.Respect to those that we met in front o,among them that is always ready to share knowledge,time are dollar naira, penuelseun etc

You need money,tools,time,knowledge,ion because some times you will get tired.

I have being buying tools dat could be of help,yet I haven't start big project but I know I will get there.

flotwz:


Thanks, really appreciated

You're welcome.

dollarnaira:


The charging profile of the fan fits. The problem is the bms that will cut off at 12v is the issue here. Unless you act as the living bms i.e monitoring spirit . I am a living bms though.

You can easily build an LVD for that fan using a 555 timer IC. There is a circuit online where it is built like a controller, which I think you can adjust the turn on and turn off values to make it work as an LVD.

Problem solved, I they enjoy the labour of my hands now.

I ran a refrigerator with it for some minutes yesterday and it seems to amaze me.

Thanks to y'all.
Ewizard1 penuelseun dollarnaira

officialfestus:
I ran a refrigerator with it for some minutes yesterday and it seems to amaze me.

Thanks to y'all.
Ewizard1 penuelseun dollarnaira

You are welcome boss, enjoy your build

Hello gurus.
I need a built package that can
1. Charge my PC (HP 15 11th gen, s type C)
2. power rechargeable fan (or DC fan)
3. power router
4. power one light bulb

...for 6-12hrs

Dollarnaira, Penuelseun and other bosses, I missed out on something like this you built months ago (dollarnaira I think). Abeg help me build as I don't think I can handle this DIY myself, make I no burn Lagos.

gr8skillz:
Hello gurus.
I need a built package that can
1. Charge my PC (HP 15 11th gen, s type C)
2. power rechargeable fan (or DC fan)
3. power router
4. power one light bulb

...for 6-12hrs

Dollarnaira, Penuelseun and other bosses, I missed out on something like this you built months ago (dollarnaira I think). Abeg help me build as I don't think I can handle this DIY myself, make I no burn Lagos.

All above loads at once?

I can alternate between the PC and Fan. I can also leave out the bulb.

dollarnaira:


All above loads at once?

...can alternate between the PC and Fan. I can also leave out the bulb.

gr8skillz:


...can alternate between the PC and Fan. I can also leave out the bulb.

Noted.
A 12v or 5v dc bulb will suffice.

gr8skillz:
Hello gurus.
I need a built package that can
1. Charge my PC (HP 15 11th gen, s type C)
2. power rechargeable fan (or DC fan)
3. power router
4. power one light bulb

...for 6-12hrs

Dollarnaira, Penuelseun and other bosses, I missed out on something like this you built months ago (dollarnaira I think). Abeg help me build as I don't think I can handle this DIY myself, make I no burn Lagos.

What is the watts of your charger?
You can pix.

dollarnaira:

What is the watts of your charger?
You can pix.

Here is the picture (it amazes me to be seeing 150w written on it)

gr8skillz:


Here is the picture (it amazes me to be see 150w written on it)

150w oops!
The output is.....
Volt: ?
Amp: ?

dollarnaira:

150w oops!
The output is.....
Volt: ?
Amp: ?

19.5V with an output of 3.33A and 65W.

gr8skillz:


19.5V with an output of 3.33A and 65W.

These are the common spec

dollarnaira:


All above loads at once?

Bro pls post quote for 20ah, 40ah 50ah and 100ah arrangement with bms without cover

officialfestus:
My build powers my blue gate UPS now, thanks to you all.
Dollarnaira, penuelseun and ewizard1.

This is exactly my plan,
Using only LED TV, how long does it last before recharging?

bonetalk:

This is exactly my plan,
Using only LED TV, how long does it last before recharging?

I discarded the UPS and went for a sachet inverter, on a full charge, I use it for 3 nights for fan and sound system.

ceejay80s:
I am in

tuale Baba🙌

officialfestus:
I discarded the UPS and went for a sachet inverter, on a full charge, I use it for 3 nights for fan and sound system.

Okay, pls educate me more on the sachet inverter

Beat thread ever

Pls don't allows those clowns to start advertising here

sentix:
Beat thread ever

Pls don't allows those clowns to start advertising here

lol na really clowns

officialfestus:
I discarded the UPS and went for a sachet inverter, on a full charge, I use it for 3 nights for fan and sound system.

Informative! Please what's the capacity of your built bank?

https://nairaland.unblockandhide.com/7984413/original-used-new-solar-s#129994668