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Diy Lithium Ion Like-minds - Technology Market (60) - Nairaland

Nairaland ForumScience/TechnologyTechnology MarketDiy Lithium Ion Like-minds (113701 Views)

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Re: Diy Lithium Ion Like-minds by okikigsm: 7:05am On Apr 13, 2025
tetralogyfallot:
cells dey o. I've got clean 3.2A 18650 lg lithium ion cells available.
Ok.u.promised to get in touch when it's available
Re: Diy Lithium Ion Like-minds by okikigsm: 7:13am On Apr 13, 2025
4th charger arrived.laying good foundation, no time wasting again

Re: Diy Lithium Ion Like-minds by Machiny: 2:35pm On Apr 13, 2025
tetralogyfallot:
cells dey o. I've got clean 3.2A 18650 lg lithium ion cells available.
at what rate sir?
Re: Diy Lithium Ion Like-minds by tetralogyfallot(m): 2:36pm On Apr 13, 2025
Machiny:
at what rate sir?
chat me on whatsapp 08034694579
Re: Diy Lithium Ion Like-minds by edobor108(m): 3:32pm On Apr 13, 2025
happy Sunday diy gurus,ple how can i connect laptop charger to charge a very small diy 3s 12v battery,i try connecting the charger directly to the battery but the charger got blow up after a minute
Re: Diy Lithium Ion Like-minds by Sas4lyf: 12:12pm On Apr 14, 2025
Queed:
Final look
I would love something like this. Location and price please
Re: Diy Lithium Ion Like-minds by Queed: 7:30pm On Apr 14, 2025
Sas4lyf:
I would love something like this. Location and price please
This exact one would cost you nothing less than 85k.

But you can get 300W, 449Wh, 8A charging, twice the size for just 150k.

Location is Lagos. Can ship to any other state tho.
Re: Diy Lithium Ion Like-minds by Queed:
Queed:
A friend have been on my neck for some time to build a power station for him. He works remote and has limited budget, wanted something for his Lights, phones and Laptop and Modem / MIFI etc.

After long persuasion from him, I decided to come up with a Li-ion 3s8p 12v / 224Wh, 150W portable power station ( small bobo grin )
After I delivered it to him and he saw it could power his self-con, he suddenly wanted a more permanent place to install it...and still be able to take it on the go if needed. (Lol, man being insatiable! grin)

So, I had to come up with both a manual and a very simple automatic changeover solution to that problem (which, honestly, could’ve been built into the system itself).

Re: Diy Lithium Ion Like-minds by psucc(m): 8:07pm On Apr 14, 2025
What can this power?
2. How long can it last after sundown?
Does it come with Solar Panel, what wattage?
Queed:
This exact one would cost you nothing less than 85k.

But you can get 300W, 449Wh, 8A charging, twice the size for just 150k.

Location is Lagos. Can ship to any other state tho.
Re: Diy Lithium Ion Like-minds by officialfestus(m): 10:00pm On Apr 14, 2025
Queed:
After I delivered it to him and he saw it could power his self-con, he suddenly wanted a more permanent place to install it—and still be able to take it on the go if needed. (Lol, man being insatiable! grin)

So, I had to come up with both a manual and a very simple automatic changeover solution to that problem (which, honestly, could’ve been built into the system itself).
Impressive, How did you build the automatic changeover?
Re: Diy Lithium Ion Like-minds by edobor108(m): 5:50am On Apr 15, 2025
Queed:
After I delivered it to him and he saw it could power his self-con, he suddenly wanted a more permanent place to install it—and still be able to take it on the go if needed. (Lol, man being insatiable! grin)

So, I had to come up with both a manual and a very simple automatic changeover solution to that problem (which, honestly, could’ve been built into the system itself).
please what type of charger are you using,i try to use laptop charger but it got burnt
Re: Diy Lithium Ion Like-minds by Queed: 9:47am On Apr 15, 2025
officialfestus:
Impressive, How did you build the automatic changeover?
Two relays are used to switch the live and neutral lines individually. These are energised by a DC power source, which can be derived from either mains or generator... depending on the configuration... and this acts as the master control.

Although a single two-in-one relay could have been used, this setup was chosen as the most suitable based on trade-offs between cost, size, and power handling capacity.
Re: Diy Lithium Ion Like-minds by Queed: 9:58am On Apr 15, 2025
edobor108:
please what type of charger are you using,i try to use laptop charger but it got burnt
I used a suitable laptop type charger, together with a built in buck converter.

I assume you connected the charger directly to battery? This will cause most adapter to blow out, or enter protection mode (for more quality power adapters).

To safely / properly charge your battery, you will have to find a way to do away with the excess voltage and there are different method to do this.. if interested I could give further notes on this but I guess I have already answered your question.
Re: Diy Lithium Ion Like-minds by Queed:
psucc:
What can this power?
2. How long can it last after sundown?
Does it come with Solar Panel, what wattage?
https://www.nairaland.com/7902446/diy-lithium-ion-like-minds/58#134897722
Re: Diy Lithium Ion Like-minds by officialfestus(m): 10:42am On Apr 15, 2025
Queed:
Two relays are used to switch the live and neutral lines individually. These are energised by a DC power source, which can be derived from either mains or generator... depending on the configuration... and this acts as the master control.

Although a single two-in-one relay could have been used, this setup was chosen as the most suitable based on trade-offs between cost, size, and power handling capacity.
mine is quite bigger than yours.
Re: Diy Lithium Ion Like-minds by edobor108(m): 11:41am On Apr 15, 2025
Queed:
I used a suitable laptop type charger, together with a built in buck converter.

I assume you connected the charger directly to battery? This will cause most adapter to blow out, or enter protection mode (for more quality power adapters).

To safely / properly charge your battery, you will have to find a way to do away with the excess voltage and there are different method to do this.. if interested I could give further notes on this but I guess I have already answered your question.
thanks,i will get a buck converter
Re: Diy Lithium Ion Like-minds by psucc(m): 8:12pm On Apr 15, 2025
Please what's the meaning?
Queed:
.
Re: Diy Lithium Ion Like-minds by Queed: 11:00am On Apr 16, 2025
psucc:
Please what's the meaning?
It's a very small storage setup original ment for charging of mobile devices. Yes any suitable solar panel less than 40v can be used ( for example a 250W, 24V panel ), and how long it last depends on the connected load. It's a 224Wh (battery) @200VA (inverter) device.
Re: Diy Lithium Ion Like-minds by officialfestus(m): 7:29pm On Apr 19, 2025
Brewing!
Re: Diy Lithium Ion Like-minds by officialfestus(m): 11:11pm On Apr 19, 2025
Completed the 2kw li-ion powerstation, with a psw 3000w/1500w inverter.
The setup has an inbuilt cooling fan inside and enough ventilation.

Re: Diy Lithium Ion Like-minds by Penuelseun(m): 7:03am On Apr 20, 2025
officialfestus:
Completed the 2kw li-ion powerstation, with a psw 3000w/1500w inverter.
The setup has an inbuilt cooling fan inside and enough ventilation.
Nice 1
Re: Diy Lithium Ion Like-minds by Emary(f): 8:14am On Apr 21, 2025
officialfestus:
Completed the 2kw li-ion powerstation, with a psw 3000w/1500w inverter.
The setup has an inbuilt cooling fan inside and enough ventilation.
How much and what can it carry?
Re: Diy Lithium Ion Like-minds by officialfestus(m): 3:19pm On Apr 21, 2025
Emary:
How much and what can it carry?
basic appliances and a freezer.
Re: Diy Lithium Ion Like-minds by tetralogyfallot(m): 9:23am On Apr 22, 2025
Building a very good productive battery starts from the CELLS u use in building the battery. Getting good reputable CELLS is a very tough challenge to every battery builder in this part of the world. Am not oblivious of the fact that this thread is not meant for advertorial purposes but then, we all need good reputable CELLS to work to keep this great thread alive.

Re: Diy Lithium Ion Like-minds by dollarnaira(op): 9:47am On Apr 22, 2025
tetralogyfallot:
Building a very good productive battery starts from the CELLS u use in building the battery. Getting good reputable CELLS is a very tough challenge to every battery builder in this part of the world. Am not oblivious of the fact that this thread is not meant for advertorial purposes but then, we all need good reputable CELLS to work to keep this great thread alive.
Obviously we need you here. Just testing your cells few hours ago after last purchase. Busy!!!
Re: Diy Lithium Ion Like-minds by officialfestus(m): 10:31am On Apr 22, 2025
tetralogyfallot:
Building a very good productive battery starts from the CELLS u use in building the battery. Getting good reputable CELLS is a very tough challenge to every battery builder in this part of the world. Am not oblivious of the fact that this thread is not meant for advertorial purposes but then, we all need good reputable CELLS to work to keep this great thread alive.
can't wait to try them.
Re: Diy Lithium Ion Like-minds by okikigsm: 12:41pm On Apr 22, 2025
tetralogyfallot:
Building a very good productive battery starts from the CELLS u use in building the battery. Getting good reputable CELLS is a very tough challenge to every battery builder in this part of the world. Am not oblivious of the fact that this thread is not meant for advertorial purposes but then, we all need good reputable CELLS to work to keep this great thread alive.
Nobody said you should not advertise what will help the group here.
Re: Diy Lithium Ion Like-minds by moneymind: 7:54am On Apr 23, 2025
4s 100amps bms available 19k. None smart.

08036761triple8 Benin

Re: Diy Lithium Ion Like-minds by officialfestus(m): 9:29am On Apr 23, 2025
moneymind:
4s 100amps bms available 19k. None smart.

08036761triple8 Benin
what's the size of the battery box in inches?
Can it accommodate a 3s 150 cells?
Re: Diy Lithium Ion Like-minds by Intellab(m): 2:18pm On Apr 23, 2025
What size of nickel stripe do you recommend for 24v system? I doubled 0.1, but it drops current when trying to power my 1hp sumo?
Re: Diy Lithium Ion Like-minds by officialfestus(m): 7:51pm On Apr 23, 2025
Intellab:
What size of nickel stripe do you recommend for 24v system? I doubled 0.1, but it drops current when trying to power my 1hp sumo?
I uses 0.15x8mm.
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