₦airaland Forum

Obnoxious2001:
You no dey sound like newbie.

You be SNR man

Even newbie self dey get patience to learn and follow the process.

As newbie, if you can fund the project you can learn and build yours yourself

Even if I'm not a newbie don't you believe there might be other newbies looking at the thread to see if they can learn one or two things from people like you?

Why hide knowledge behind a pay wall on a DIY thread? See the guy documenting his own build up there, that is exactly what a diy thread is supposed to be comprised of.

People building stuffs and posting updates for OTHERS TO LEARN from

FourQu:
Even if I'm not a newbie don't you believe there might be other newbies looking at the thread to see if they can learn one or two things from people like you?

Why hide knowledge behind a pay wall on a DIY thread? See the guy documenting his own build up there, that is exactly what a diy thread is supposed to be comprised of.

People building stuffs and posting updates for OTHERS TO LEARN from

If you will fund the process,I don't have problem in doing it.

The person documenting is not telling you how much he is spending.

I have explained the process of achieving that changeover switch and charging stuff....

If you need to see the whole hardware, money would be spent. I get satchet inverter we fit use (you made me to go and check my scraps)

Obnoxious2001:
If you will fund the process,I don't have problem in doing it.

The person documenting is not telling you how much he is spending.

I have explained the process of achieving that changeover switch and charging stuff....

If you need to see the whole hardware, money would be spent. I get satchet inverter we fit use (you made me to go and check my scraps)

I understand you don't have the materials or need to do a diy project at present. For example The guy doing his own up there might need it for himself (hence the justification for his spendings) OR someone paid him to build a battery backup and he chose to document his build for us here to learn. That's what a diy thread is about.

I don't expect you to run out and buy parts to discribe a build to whoever asks for help here . . . it's just that I expect you to first list out materials the person needs and bit of the process to be followed to achieve what the person wants to achieve.

It's all good sha, I'm enjoying the thread. I myself M in the middle of a build concerning something else but I need a battery backup hence my interest in this thread.

FourQu:
I understand you don't have the materials or need to do a diy project at present. For example The guy doing his own up there might need it for himself (hence the justification for his spendings) OR someone paid him to build a battery backup and he chose to document his build for us here to learn. That's what a diy thread is about.

I don't expect you to run out and buy parts to discribe a build to whoever asks for help here . . . it's just that I expect you to first list out materials the person needs and bit of the process to be followed to achieve what the person wants to achieve.

It's all good sha, I'm enjoying the thread. I myself M in the middle of a build concerning something else but I need a battery backup hence my interest in this thread.

No wahala chief.
Keep following and contributing....

Document the project you are building now .

You never can tell who might need it too

Obnoxious2001:
You no dey sound like newbie.

You be SNR man

Even newbie self dey get patience to learn and follow the process.

As newbie, if you can fund the project you can learn and build yours yourself

You are making him feel important by your replies. I Avoid such ppu upon detection. Now he is gradually derailing the thread.

Please engineers if you have MPPT charge controller any need for buck converter

FourQu:
And how is your opinion different from mine? 🤔

This one you said I'm wrong, me I no understand where you dey from come

You were right.

My kind is an exception, not the rule (purpose) of the forum.

dollarnaira:
You are making him feel important by your replies. I Avoid such ppu upon detection. Now he is gradually derailing the thread.

Stop allowing people to come in here and offer their services for hire if they sell materials it's a different thing BUT telling someone to pay you so-so amount to join POSITIVE and NEGATIVE on a DIY thread is haram!

FourQu:
Stop allowing people to come in here and offer their services for hire if they sell materials it's a different thing BUT telling someone to pay you so-so amount to join POSITIVE and NEGATIVE on a DIY thread is haram!

Pls, are you ok at all?
Where did I request money from ppu to join things together?
I just had to break my rule to respond to this.
Who are you? If you cannot add meaningful comments pls exit. Your likes are not needed here. You twisted a harmless comment to sth else. What exactly is the colour of your problems?Was money requested from you? Quote anywhere here where money is requested from someone. You definitely need to read up slowly to get the sense of messages.The DIY thread you created abi?
Would you have make this comment if this thread wasn't created?This is a free thread!!! Well it is in your moniker- FourQu( big haram).

Obnoxious2001:
I can build an automatic change over for you. It will transfer load,put of the inverter and activate your charger (that's of if you have an external charger)

Your location?

That part "put off the inverter" pls can you shed more light on this? I have a 10A 8pin DIY relay I am using but it can only transfer the load but not put off the inverter. Can the relay achieve this? I need something that can also put off the inverter when I am on grid to save my battery from ideal power consumption of the inverter

sonickay:
suoer2kv modified sine wave

Bro, that inverter is not strong enough to tolerate leaving it 24/7 on, it will spoil in no time. Get PSW sachet inverter for this

Valto:
note if your load is above 500w, i will advise u use a stronger relay /contactor
i needed to get wires from 3 sources
1, from charger AC input source
2, from wires coming from inverter AC output
3 from inverter AC socket (note i disconnected wires soldered on the inverter Ac output socket)

then to the relay itself
it is an 8pin relay with socket

wires from inverter Ac socket goes to relay socket no: 1 and 8

wires from charger Ac source goes to no: 3 and 6

wires from inverter Ac source no: 4 and 5
in order to energise the coil, wire is tapped from no:3 and 6 to no: 2 and 7

make una vex for my not too detailed post, as me i no go school

Oga Valto you are doing a fantastic job here. This is exactly what I am using but mine is just to changeover between the main and the inverter, I didn't incorporate the charger with it. Is there a way we can equally manipulate this relay to put off the inverter automatically when the main is restored?

ajabani4allah:
Bro, that inverter is not strong enough to tolerate leaving it 24/7 on, it will spoil in no time. Get PSW sachet inverter for this

You must have had bad experiences with satchet inverters, those inverters are durable and can run 247. They have the same architecture with PSW just different output stage.( In Psw the outstage has a microcontroller that generates spwm that is linked to the output MOSFET)

ajabani4allah:
That part "put off the inverter" pls can you shed more light on this? I have a 10A 8pin DIY relay I am using but it can only transfer the load but not put off the inverter. Can the relay achieve this? I need something that can also put off the inverter when I am on grid to save my battery from ideal power consumption of the inverter

You will need 2 relays
Or a double pole double throw relay

One will attend to the load transfer then the other one will take care of the inverter.

Obnoxious2001:
You must have had bad experiences with satchet inverters, those inverters are durable and can run 247. They have the same architecture with PSW just different output stage.( In Psw the outstage has a microcontroller that generates spwm that is linked to the output MOSFET)


You will need 2 relays
Or a double pole double throw relay

One will attend to the load transfer then the other one will take care of the inverter.

Honestly, that was my experience with the Souer inverter modified wave I first used. I would leave it on most of the time and it just got damaged repeatedly I have packed it some where now. I now use PSW and is serving very well.

I will on the relay. Thanks so much

ajabani4allah:
Honestly, that was my experience with the Souer inverter modified wave I first used. I would leave it on most of the time and it just got damaged repeatedly I have packed it some where now. I now use PSW and is serving very well.

I will on the relay. Thanks so much

But why would you like to turn it off?

I hate grid with passion especially when voltage spikes aka surge. Psw is clean enough to run 247.

I just got 360 pieces of 18650 batteries, please how many bms would you recommend I buy plus where can I get it. Thank you

ajabani4allah:
That part "put off the inverter" pls can you shed more light on this? I have a 10A 8pin DIY relay I am using but it can only transfer the load but not put off the inverter. Can the relay achieve this? I need something that can also put off the inverter when I am on grid to save my battery from ideal power consumption of the inverter

Yes it can be achieved using an extra relay (single 10A /7A relay 5pin)

The switch on the inverter would have to be unsoldered and the two wires should then be connected to the NC and COM of the relay. When the relay is energized the connection between NC and COM would be broken and this in turn makes the inverter go off.

Note:
You will get slight down time whenever the mains goes off because:

1) The source of energizing the relay (maybe 12v adapter) will still have a bit of power stored when mains goes off and will not release the relay on time.
2) Your inverter will most likely not come immediately, after the relay has been released ( which may have also been delayed due to (1) above ).
All these could cause about 2 sec delay during switch from mains to inverter only. If your connected devices can't tolerate this delay, it's best you just stick with change over between AC outputs only and leave the turning on/off the inverter.

Regards,

Southboy:
I just got 360 pieces of 18650 batteries, please how many bms would you recommend I buy plus where can I get it. Thank you

Where did you get the batteries from?

FourQu:
Where did you get the batteries from?

My neighbour sells the battery in large quantity

Southboy:
My neighbour sells the battery in large quantity

Okay nice. So how much did you buy the exact amount of batteries you have? I need a similar amount

Hi everyone, I have a 48v pack of li ion. Was d best charging voltage n cut of voltage to use

brightk:
Hi everyone, I have a 48v pack of li ion. Was d best charging voltage n cut of voltage to use

Charging 55.8v - 58.4v
Maximum 58.4v
Float 54.0v
Equalize 58.4v
Minimum 40v
Nominal 48v / 51.2v

Oh sorry its for lifepo4

brightk:
Hi everyone, I have a 48v pack of li ion. Was d best charging voltage n cut of voltage to use

How many cells do you have in series? Max charge voltage for 18650 cells 14s is 58.8, that is 4.2v × 14, but it is better to charge to 4.0v per cell to prolong the lifespan of your cells. Cut off should be 3.0v per cell which is 42v.

Juror:
I have a stash of 18650 cells for sale, some Samsung cells I bought from tetralogy(some never used and some I tried with a project and discontinued) over 150 units and many cells I harvested from laptop batteries (quite a lot, over 200 or so).

I am also selling the spot welder I bought from AE, never used it at all.

Was intending to build cells for my ebike but I changed direction.

I'll share pics

your number

FourQu:
Okay nice. So how much did you buy the exact amount of batteries you have? I need a similar amount

198k

Southboy:
198k

Wow nice. How many mah per cell?

ajabani4allah:
Honestly, that was my experience with the Souer inverter modified wave I first used. I would leave it on most of the time and it just got damaged repeatedly I have packed it some where now. I now use PSW and is serving very well.

I will on the relay. Thanks so much

do you mind sharing a picture of your setup and connection?

Southboy:
198k

salvaged laptop cells?

officialfestus:
salvaged laptop cells?

yes

Penuelseun:
How many cells do you have in series? Max charge voltage for 18650 cells 14s is 58.8, that is 4.2v × 14, but it is better to charge to 4.0v per cell to prolong the lifespan of your cells. Cut off should be 3.0v per cell which is 42v.

Pls check ur dm

brightk:
Pls check ur dm

send me a message on Whatsapp instead, my number is on my profile

Well, I this one appears to be over strong. I have been using this inverter for extended period of time on a daily basis since 2019, now on Starlink for 12hrs+ per day for over 3months and waiting for it to spoil cos i dont believe in finixing something if it snt broken.

Btw, do you have used PSW Inveeter for sale?

ajabani4allah:
Bro, that inverter is not strong enough to tolerate leaving it 24/7 on, it will spoil in no time. Get PSW sachet inverter for this