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Diy Lithium Ion Like-minds - Technology Market (13) - Nairaland

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Lithium Ion Solar Batteries / I Make Lithium Ion Batteries For Solar And Inverter Systems / Get Lithium Ion Battery Packs For Inverters (2) (3) (4)

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Re: Diy Lithium Ion Like-minds by ksmart027(m): 7:46pm On Apr 21
eghos12:


How is the msw doing does it give bad sound

What are the appliances you are using it for
Funny enough, I don't get humming sound when powering my fan, I use it to power my tv, home theater, fan, phones and bulbs.
Re: Diy Lithium Ion Like-minds by zenith4biz(m): 8:59pm On Apr 21
eghos12:

I which we can see inverter that goes below 10v above 70% would still be okay

Satchet inverter can go below 10v from my personal experience, the load on the inverter matters, just powering single 5w bulbs on an inverter can make the inverter go to 9v
Re: Diy Lithium Ion Like-minds by eghos12(m): 9:31pm On Apr 21
ksmart027:

Funny enough, I don't get humming sound when powering my fan, I use it to power my tv, home theater, fan, phones and bulbs.

Do you use normal standing fan or rechargeable
Re: Diy Lithium Ion Like-minds by Penuelseun(m): 10:57pm On Apr 21
eghos12:

I which we can see inverter that goes below 10v above 70% would still be okay
victron satchet inverter can go as low as 9v but very expensive

1 Like

Re: Diy Lithium Ion Like-minds by ksmart027(m): 12:10am On Apr 22
eghos12:


Do you use normal standing fan or rechargeable
I use a 50w normal standing fan most times, but i mostly use a DC fan.
Re: Diy Lithium Ion Like-minds by officialfestus(m): 10:15am On Apr 22
eghos12:


You know you are buying mppt charge controller sha because of this size of panel ba
I'm getting a pwm, the exact type penuelseun posted here.
Re: Diy Lithium Ion Like-minds by eghos12(m): 11:50am On Apr 22
officialfestus:
I'm getting a pwm, the exact type penuelseun posted here.
Don't buy it if you have not paid o. except you can cut the panel as penuelseun has said. You better go for mppt because it going to be slow when charging your battery due to the fact that pwm controller can not convert excess voltage to current, it will only take the 18v needed to charge the battery and expel the rest as heat.. but mppt will convert it to current and send it to the battery.

1 Like

Re: Diy Lithium Ion Like-minds by officialfestus(m): 12:08pm On Apr 22
eghos12:

Don't buy it if you have not paid o. except you can cut the panel as penuelseun has said. You better go for mppt because it going to be slow when charging your battery due to the fact that pwm controller can not convert excess voltage to current, it will only take the 18v needed to charge the battery and expel the rest as heat.. but mppt will convert it to current and send it to the battery.
ok, I never buy am thanks.
Re: Diy Lithium Ion Like-minds by dollarnaira: 2:28pm On Apr 22
ksmart027:

I use msw souer 1000w inverter, voltage cut off at 10v

Msw cut off at 10v is cool depending on the amp of the battery used.
Re: Diy Lithium Ion Like-minds by eghos12(m): 2:49pm On Apr 22
officialfestus:
ok, I never buy am thanks.

Afa give me your WhatsApp no I stay edo too I want to ask some edo solar questions
Re: Diy Lithium Ion Like-minds by officialfestus(m): 3:14pm On Apr 22
eghos12:


Afa give me your WhatsApp no I stay edo too I want to ask some edo solar questions
ok bloodline. E they my signature now.
Re: Diy Lithium Ion Like-minds by officialfestus(m): 10:06pm On Apr 23
My inverter came today.

Re: Diy Lithium Ion Like-minds by officialfestus(m): 10:08pm On Apr 23
It was worthy every Penny as it can go as low as 9.4volt, with a load of 90w.

2 Likes

Re: Diy Lithium Ion Like-minds by dollarnaira: 10:14pm On Apr 23
officialfestus:
It was worthy every Penny as it can go as low as 9.4volt, with a load of 90w.

Congratulations.
Very compatible with lithium but severe damage awaits LifePO4 users. So dont use it with LifePO4 oooooo unless a bms at 3v cut off per cell is attached. Enjoy!!!

1 Like

Re: Diy Lithium Ion Like-minds by officialfestus(m): 5:05am On Apr 24
dollarnaira:


Congratulations.
Very compatible with lithium but severe damage awaits LifePO4 users. So dont use it with LifePO4 oooooo unless a bms at 3v cut off per cell is attached. Enjoy!!!
ok sir, thanks.
Re: Diy Lithium Ion Like-minds by zenith4biz(m): 11:29am On Apr 26
officialfestus:
It was worthy every Penny as it can go as low as 9.4volt, with a load of 90w.

Hope your cells are well balanced with BMS attached, if not you will be killing some cells at that voltage
Re: Diy Lithium Ion Like-minds by officialfestus(m): 2:30pm On Apr 28
zenith4biz:


Hope your cells are well balanced with BMS attached, if not you will be killing some cells at that voltage
yeah, I even plan on buying an active balancer soon.
Re: Diy Lithium Ion Like-minds by orkman(m): 8:07am On Apr 29
Penuelseun:
he can divide the cells into 2 and use with the pwm controller if he knows his way around it, voltage will be reduced from 36v to 18v thereby doubling the current
can this be possible with jinko 440w solar panels
Re: Diy Lithium Ion Like-minds by Penuelseun(m): 9:28am On Apr 29
orkman:
can this be possible with jinko 440w solar panels
I don't think so
Re: Diy Lithium Ion Like-minds by orkman(m): 5:06pm On Apr 29
Penuelseun:
I don't think so
okay. Thanks
Re: Diy Lithium Ion Like-minds by tetralogyfallot(m): 2:23am On Apr 30
officialfestus:
It was worthy every Penny as it can go as low as 9.4volt, with a load of 90w.
what? Wow! 9.4v is not a bad one on 12v lithium ion pack. That's each line to be 3.1v.

1 Like

Re: Diy Lithium Ion Like-minds by eghos12(m): 11:47am On Apr 30
ksmart027:

Funny enough, I don't get humming sound when powering my fan, I use it to power my tv, home theater, fan, phones and bulbs.

Hello bro can you send a snap of your inverter
Re: Diy Lithium Ion Like-minds by ksmart027(m): 12:22pm On May 01
eghos12:


Hello bro can you send a snap of your inverter
Here you go

1 Like

Re: Diy Lithium Ion Like-minds by eghos12(m): 2:41pm On May 01
ksmart027:

Here you go
Thanks

1 Like

Re: Diy Lithium Ion Like-minds by dollarnaira: 3:44pm On May 01
ksmart027:

Here you go

Msw will damage :
Regular fan
Smart tv
Re: Diy Lithium Ion Like-minds by officialfestus(m): 11:59pm On May 01
ksmart027:

Here you go
How many kwh is your setup and how long does it last?
Re: Diy Lithium Ion Like-minds by flotwz(m): 11:56am On May 02
Makaveli217:
Nice innovation with the pvc.
You'll need to test each cell individually with a load to know if it's working properly, I suggest
you use a 5v tablet cooler fan for test, just to be sure all cells are good, so some wouldn't be draining others which is not safe.

A beautiful brodally, could you please shed more light on battery load test
Re: Diy Lithium Ion Like-minds by flotwz(m): 12:04pm On May 02
officialfestus:
The advantage of using pvc pipe as a battery bracket, is that you can change any cell without dismantling the whole pack.

Brodally, abeg give me guide on how to build backup power bank for my laptop. Light dey show me shege for my side. Thanks in advance
Re: Diy Lithium Ion Like-minds by Makaveli217(m): 5:42pm On May 02
flotwz:


A beautiful brodally, could you please shed more light on battery load test

You'll need a digital multi meter and a timer (clock) or your phone time.

First connect the battery to the meter, if the battery is fully charged, you'll get 4.25v or 4.45v pending on the battery type, now connect the fan to the battery while the meter is still connected, once connected, time it, I time mine 1mins, sometimes 2minis. (This is where the clock comes in). If it's a good battery, it should read 4.24v or 4.28v, now that's the voltage drop. (Eg Below). That's how to know a good battery, if it drops below that, it's bad, even if it drops to 4.00v, connecting it together with other cells in series or parallel is risky.

Let's take for example, if the battery reads 4.25v while connected to the meter, then reads 4.20v when you connect the fan (voltage drop), that is 4.25 - 4.20 = 0.05. After your 1mins has enlaps, disconnect only the fan, now the battery voltage will rise back to the default voltage it was which is 4.25v, some will rise to 4.24v then slowly reach 4.25v. Now that's a good battery. Any battery that doesn't rise back to it's default voltage is close to going bad.

If after your calculations and yours drops below 0.05, don't mix it with others that is above 0.05.

1 Like

Re: Diy Lithium Ion Like-minds by officialfestus(m): 6:37pm On May 02
flotwz:


Brodally, abeg give me guide on how to build backup power bank for my laptop. Light dey show me shege for my side. Thanks in advance
bro go youtube oh, like this my pack never still they alright.
Re: Diy Lithium Ion Like-minds by ksmart027(m): 6:54pm On May 02
dollarnaira:


Msw will damage :
Regular fan
Smart tv
Pls which inverter will you advise i get? because i dey use am power my appliances.
Re: Diy Lithium Ion Like-minds by ksmart027(m): 6:57pm On May 02
officialfestus:
How many kwh is your setup and how long does it last?
Baba na small set up oo grin, 100ah battery, I don't know the precise amps and 1,000kva inverter, 100w load last 12 to 13hrs. I am planning to add panels.

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