NewStats: 3,262,091 , 8,176,046 topics. Date: Saturday, 31 May 2025 at 06:37 PM 3t454w

sentix:
Hi house
How can I connect a solar to my 4s battery pack

Yes you can, the first controller in the picture s it

stanvesco:


I know. I want it. I need it. You can as well sell it off as a help.

Toh, pay 55k

zenith4biz:
12v 2000w pure sine wave inverter for sale, barely used. Strong build quality and one of the most expensive satchet inverter on AliExpress
Money back guarantee
Reason for sale
Just upgraded to 24v set-up

Price #60,000 non-negotiable
07036457507

Your WhatsApp no. pls?

okikigsm:


Your WhatsApp no. pls?

07036457507

Please can I parallel 12v 70ah lithium ion battery to another 12v 35ah lithium ion battery to make it 12v 105ah. I saw where they said that lifepo4 can be parallel together.

orkman:
Please can I parallel 12v 70ah lithium ion battery to another 12v 35ah lithium ion battery to make it 12v 105ah. I saw where they said that lifepo4 can be parallel together.

Yes
Yes
Yes

So recently I have been thinking, how do you charge your 3s battery with solar controller?

Due to the fact that most pwm controller has max bulk charge at 14.4v.

Don't you think running 4s is a more better option

Obnoxious2001:
So recently I have been thinking, how do you charge your 3s battery with solar controller?

Due to the fact that most pwm controller has max bulk charge at 14.4v.

Don't you think running 4s is a more better option

the controller I posted up there has both 3s and 4s lithium profile, 4s configuration is not good for most 12v inverters in the market as the maximum voltage they can work with is 15.5v, 3s will also limit you to around 50% of your battery capacity as most inverters shut down around 10.5v. 7s and 14s is the best configuration for li-ion cells

Penuelseun:
the controller I posted up there has both 3s and 4s lithium profile, 4s configuration is not good for most 12v inverters in the market as the maximum voltage they can work with is 15.5v, 3s will also limit you to around 50% of your battery capacity as most inverters shut down around 10.5v. 7s and 14s is the best configuration for li-ion cells

I get your point very well.
How ever, on 4s low battery cut out is going to be around 12v.....,
Which is too early. Kia.

Make I see the one I go do first

dollarnaira:

Yes
Yes
Yes

thanks for the respond

Penuelseun:
Yes you can, the first controller in the picture s it

good evening boss, is it compulsory to ground (earth) solar s?

Penuelseun:
Yes you can, the first controller in the picture s it

share link please, I can't find it on jumia.

officialfestus:
good evening boss, is it compulsory to ground (earth) solar s?

Personally I don't think it is unless the building is a storey building without a thunder arrestor installed. Ac and DC SPDs are a must sha

officialfestus:
share link please, I can't find it on jumia.

it is there, search for 60a charge controller

Penuelseun:
it is there, search for 60a charge controller

thanks.

I have this spare 800/1600 Pure Sine wave sachet inverter for sale.

Price - 50k firm.
Location - Oshodi/Isolo, Lagos

zenith4biz:
12v 2000w pure sine wave inverter for sale, barely used. Strong build quality and one of the most expensive satchet inverter on AliExpress
Money back guarantee
Reason for sale
Just upgraded to 24v set-up

Price #55,000 non-negotiable
07036457507

Still available

The bosses in the house... I greet you all.

How can one tell that an inverter is Pure sine wave and not modified sine wave at first use?

It has come to my notice that many modified sine wave inverters are d as Pure just so they can be sold at a higher price.

Wizyoung:
The bosses in the house... I greet you all.

How can one tell that an inverter is Pure sine wave and not modified sine wave at first use?

It has come to my notice that many modified sine wave inverters are d as Pure just so they can be sold at a higher price.

You will hear a humming sound when used with ac ceiling or standing fan

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

Bro please explain how the usage with the ups has been. What volt does it trip off.

eghos12:


Bro please explain how the usage with the ups has been. What volt does it trip off.

usage from a 1kw diy lithium ion (12v 3s) battery, usage has been poor, because it shuts down at 11v powering just a 90w tv for two hours, the UPS is not efficient with power, I ordered a 2600w pure sine wave sachet inverter from aliexpress and it has arrived my state, hopefully I get it this week, I'll keep the house updated on how it goes.

Got a 385w Canada , I hope to get another jinko 400w soon.

officialfestus:
Got a 385w Canada , I hope to get another jinko 400w soon.

You know you are buying mppt charge controller sha because of this size of ba

eghos12:


You know you are buying mppt charge controller sha because of this size of ba

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

officialfestus:
usage from a 1kw diy lithium ion (12v 3s) battery, usage has been poor, because it shuts down at 11v powering just a 90w tv for two hours, the UPS is not efficient with power, I ordered a 2600w pure sine wave sachet inverter from aliexpress and it has arrived my state, hopefully I get it this week, I'll keep the house updated on how it goes.

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

Penuelseun:
You will hear a humming sound when used with ac ceiling or standing fan

Thank you for this

ksmart027:

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

How is the msw doing does it give bad sound

What are the appliances you are using it for

So my diy enthusiast wast the suppose cut off voltage of 3s li ion battery pack when connected to an inverter

eghos12:
So my diy enthusiast wast the suppose cut off voltage of 3s li ion battery pack when connected to an inverter

A 3s Li-ion is at 0% at 9v (3v per cell). However, you won't find and inverter that'll go that deep before it shutdown.

eghos12:


How is the msw doing does it give bad sound

What are the appliances you are using it for

A MSW inverter would ALWAYS give bad sound to inductive loads.

ewizard1:

A MSW inverter would ALWAYS give bad sound to inductive loads.

Ok
Na to gather body buy pure sine wave o

ewizard1:


A 3s Li-ion is at 0% at 9v (3v per cell). However, you won't find and inverter that'll go that deep before it shutdown.

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