₦airaland Forum

House please I need your opinion on. This.

I have been thinking about 4s vs 3s battery configuration of same capacity.

Which is better of to use considering back up.

Obnoxious2001:
House please I need your opinion on. This.

I have been thinking about 4s vs 3s battery configuration of same capacity.

Which is better of to use considering back up.

Both depends on the inverter to use.
The Following is based on Samsung 26J cut off of 2.75v per cell.

4s : using regular Satchet inverter of lvd 10.5v is not good for it as each cell will be below safe 2.75v. charging is a problem at times except with solar

3s : Regular inverter ranges btw 9 to 10.5v ( esp 1000w and below) Lvd. Easy to charge.

Best is to get editable inverters to enjoy both.

I usually do 3s any day anytime. I made use of 2 inverters. When one stops at 10.5v the other drags it down to 9v which I hardly get to.

dollarnaira:
Both depends on the inverter to use.
The Following is based on Samsung 26J cut off of 2.75v per cell.

4s : using regular Satchet inverter of lvd 10.5v is not good for it as each cell will be below safe 2.75v. charging is a problem at times except with solar

3s : Regular inverter ranges btw 9 to 10.5v ( esp 1000w and below) Lvd. Easy to charge.

Best is to get editable inverters to enjoy both.

I usually do 3s any day anytime. I made use of 2 inverters. When one stops at 10.5v the other drags it down to 9v which I hardly get to.

Inverter LVD is not a challenge in this case.

I was actually wondering why MTN Lumos battery uses a 4s13p configuration

Obnoxious2001:
Inverter LVD is not a challenge in this case.

I was actually wondering why MTN Lumos battery uses a 4s13p configuration

It was 4s11p configuration.
I suspect the bms used did the magic.

Who's got a very cheap 12v, 200w Inverter for sale and also digital Voltmeter
OR
Can someone point where I can get it at Alaba Int'l market.
Thanks.

dollarnaira:
It was 4s11p configuration.
I suspect the bms used did the magic.

I don't think the BMS does any special functions aside to charge the battery

Obnoxious2001:
I don't think the BMS does any special functions aside to charge the battery

It does bro.
Have you seen it dismantled?

dollarnaira:
It does bro.
Have you seen it dismantled?

No. I have only seen the bms

NACE13:
Who's got a very cheap 12v, 200w Inverter for sale and also digital Voltmeter
OR
Can someone point where I can get it at Alaba Int'l market.
Thanks.

I have this 1000w power inverter with digital meter,if you're interested

obinna37:
I have this 1000w power inverter with digital meter,if you're interested

Ha Obina...you get?
Joke apart na psw?

dollarnaira:
Ha Obina...you get?
Joke apart na psw?

not psw but better than suoer sachet inverter

dollarnaira:
Ha Obina...you get?
Joke apart na psw?

Oga Obinna dey always deliver...

obinna37:
not psw but better than suoer sachet inverter

What is the lowest voltage?

dollarnaira:

What is the lowest voltage?

9 to 9.5v

NACE13:
Who's got a very cheap 12v, 200w Inverter for sale and also digital Voltmeter
OR
Can someone point where I can get it at Alaba Int'l market.
Thanks.

i have got a 12v 1000w (500w continuous power) pure sine wave sachet inverter available, it is slightly used(uses to test battery attimes) going for 45k

obinna37:
9 to 9.5v

How much biko?

Valto:
i have got a 12v 1000w (500w continuous power) pure sine wave sachet inverter available, it is slightly used(uses to test battery attimes) going for 45k

Sorry, but I need the 200w for a small project. 1Kw is kinda on the very high and bulky side

obinna37:
I have this 1000w power inverter with digital meter,if you're interested

I need 200w. Just for a small project.
Just curious, how much is it?

dollarnaira:
How much biko?

30k firm

NACE13:
Sorry, but I need the 200w for a small project. 1Kw is kinda on the very high and bulky side

30k

I have a lithium battery but my inverter has a very low LVD( 10.5v).

Please what are my options in order to avoid low voltage disconnect from my BMS.

Abeg my DIY ogas and any user/ installer that has faced similar issue, i need una help.

@oloet, @olopan,@valto, @NiyiOmoIyunade

obinna37:
30k firm

Thanks

compunigeria:
I have a lithium battery but my inverter has a very low LVD( 10.5v).

Please what are my options in order to avoid low voltage disconnect from my BMS.

Abeg my DIY ogas and any user/ installer that has faced similar issue, i need una help.

@oloet, @olopan,@valto, @NiyiOmoIyunade

Be the living bms.
Na so most of us dey manage am.
What will I b doing allowing my battery to get crossed 12.5v sef? No capacity between 12 and 12.5v. Depending on the load being powered, it takes some time to hit 12v. Shut down your system btw 12.5v and 12v.

dollarnaira:
Be the living bms.
Na so most of us dey manage am.
What will I b doing allowing my battery to get crossed 12.5v sef? No capacity between 12 and 12.5v. Depending on the load being powered, it takes some time to hit 12v. Shut down your system btw 12.5v and 12v.

😀 Thanks, i am grateful.

compunigeria:
😀 Thanks, i am grateful.

Ywc

You can take the proactive way by getting a voltmeter and it displays your voltage for you where you will constantly see or monitor the battery level.

OR

you can just take the reactive way and order a 80A 12-30V dc LVD on aliexpress for a easy setup (this way you set your desired voltage 12.1-12.4V minimum

compunigeria:
I have a lithium battery but my inverter has a very low LVD( 10.5v).

Please what are my options in order to avoid low voltage disconnect from my BMS.

Abeg my DIY ogas and any user/ installer that has faced similar issue, i need una help.

@oloet, @olopan,@valto, @NiyiOmoIyunade

You can take the proactive way by getting a voltmeter and it displays your voltage for you where you will constantly see or monitor the battery level.

OR

you can just take the reactive way and order a 80A 12-30V dc LVD on aliexpress for a easy setup (this way you set your desired voltage 12.1-12.4V minimum

compunigeria

You can take the proactive way by getting a voltmeter and it displays your voltage for you where you will constantly see or monitor the battery level.

OR

you can just take the reactive way and order a 80A 12-30Vdc LVD on aliexpress for a easy setup (this way you set your desired voltage [12.1-12.4V] minimum

compunigeria

You can take the proactive way by getting a voltmeter and it displays your voltage for you where you will constantly see or monitor the battery level.

OR



compunigeria

Bro NL no let me drop you message o

compunigeria:
😀 Thanks, i am grateful.

olopan:
Bro NL no let me drop you message o

It has dropped. Thanks, infact i am currently trying to search for that LVD online.

Thanks

compunigeria:
It has dropped. Thanks, infact i am currently trying to search for that LVD online.

Thanks

You can build one yourself if it's too important