₦airaland Forum

Obnoxious2001:
Yes.

I thought it's better to use 12v solar panel on 12v system if you're using pwm charge controller,pls correct me if I'm wrong

obinna37:
I thought it's better to use 12v solar panel on 12v system if you're using pwm charge controller,pls correct me if I'm wrong

You are very correct, a 24v panel on a 12v system using a pwm controller is a waste

Penuelseun:
You are very correct, a 24v panel on a 12v system using a pwm controller is a waste

ok,but can it be used for temporary,when the person is ready to upgrade to mppt,how is the wastage and low is it

obinna37:
ok,but can it be used for temporary,when the person is ready to upgrade to mppt,how is the wastage and low is it

Yes you can use it temporarily, 300w may output just 130w on pwm

Penuelseun:
Yes you can use it temporarily, 300w may output just 130w on pwm

wow it's truely waste

dollarnaira:
12v 146ah cost just 240k

Abeg which lifepo4 battery cost 240k at 146ah or are you talking about harvested cells L(ion) ?

iraybuju:
Abeg which lifepo4 battery cost 240k at 146ah or are you talking about harvested cells L(ion) ?

Brand New lifepo4

obinna37:
I thought it's better to use 12v solar panel on 12v system if you're using pwm charge controller,pls correct me if I'm wrong

You are correct.

Good morning sir, please what is the minimum number of cells that you can sell at a time?

tetralogyfallot:
cells dey o. I've got clean 3.2A 18650 lg lithium ion cells available.

officialfestus:
running a capacity test right now.

1.95kw

Obnoxious2001:
You are correct.

Thank you,we are all here to learn

officialfestus:
1.95kw

Wow!
How much did this cost you in total, to build it?

officialfestus:
1.95kw

it can still go 2kw or more when you still drain the battery to 9v, that's 3v per cell

BigDickProblems:
Wow!
How much did this cost you in total, to build it?

I'm sorry I can't say how much it cost me to build since it's a DIY thread.

obinna37:
it can still go 2kw or more when you still drain the battery to 9v, that's 3v per cell

yeah you're right.

officialfestus:
I'm sorry I can't say how much it cost me to build since it's a DIY thread.

Really?? I thought DIY is meant for people to build their packs through information from like-minds?

Ok. On a closer look, I guess you market your packs here for sale, and this is the reason why you can’t answer the question.

BigDickProblems:
Really?? I thought DIY is meant for people to build their packs through information from like-minds?

Ok. On a closer look, I guess you market your packs here for sale, and this is the reason why you can’t answer the question.

I don't market my packs here.

jp130:
Good morning sir, please what is the minimum number of cells that you can sell at a time?

100 n above

tetralogyfallot:
100 n above

If you need little pcs just look for sellers around your environ

3.7V 3200mAh LG 18650 lithium ion cells available. All capacity tested. Whatsapp only pls 08034694579, let's not flood here with ads talk.

7s 2.4kw in progress.

I'm in uyo, I know not of anyone. Is jumia reliable? I need 30pcs to try 3s 10p pack

iraybuju:
If you need little pcs just look for sellers around your environ

tetralogyfallot:
Today marks 2 years of my going off grid with my DIY 11kwh lithium ion built battery bank! This guy powers my 2 airconditioners, electric cooker, 2 freezers n 1 fridge, water pumping machine sumo, pressing iron, microwave, tvs, laptops, water heater, and every other electric gadget u can think of. The sun has been paying the bills.

Wow!how many cells,how much does this cost now

Valto:
work started, i will finish up tomorrow...will show more pictures of the whole wirings and assembling tomorrow.
i also have a 1000w/1600w pure sine wave inverter boards, but i will use the complete one for now

Pls valto where can I get those prismatic cells ,busbars & bms?

Pls what are the solar component that can charge max of 40 phones just for day time ..what and what do one need
Thanks

billyG:
Plus valto where can I get those prismatic cells ,busbars & bms?

several ratings of lifepo4 lithium battery cells available , all comes with busbars, nuts and epoxy boards.

chat me on WhatsApp 08020574628 or telegram@ValtechEnergy

officialfestus:
1.95kw

Bro where do you get the aluminum case/box from please? How affordable is it?

JJacko:
Bro where do you get the aluminum case/box from please? How affordable is it?

from tetralogyfallot

officialfestus:
7s 2.4kw in progress.

Please what's update on this, how can I reach out?

I will like to find out cost of this assembly and other technical details

tetralogyfallot:
20s lifepo4 module

How can I get some of those lifepo4 cells with busbars,I want to build a 25.6v battery bank

dollarnaira:
See this
24p3s

24 cells welled together in group of 3
Then series them positive to negative, positive to negative.

Does this means all d side up is welded +ve & d underside is welded -ve in parallel connection?