₦airaland Forum

Binsule:
Good afternoon engineers, pls, I have 2500mAh and 2000mAh lithium ion battery cells that I am gathering to build a 7s pack to attain 24v battery system. Can I mix those capacities together in one 7series pack or Isbit possible for me to build two individual 4s 12v pack of the different mAh capacities to later connect both pack in series to get 24v battery system. And how can I balance that?

Thank u all.

GloryJoyeux:
Final Setup

6kw Deye Offgrid
14kW Panels (3x605w JA Solar, 12x440w Jinko, 10x500w Cworth)
Victron 150/70 Charge controller
26.5kw Deriy Lithium and Cworth Lithium in Parallel with Busbar
Victron Smart shunt 300A
Junktek 100A shunt
Raspberry Pi 5 (running Solar Assistant)
Orange Pi 3 (running Solar Assistant)
Windows NUC (running Home Assistant)
Starlink for home internet
GLi.net router

Programmed Home Assistant using YAML for various automation, and created sensors from mqtt stream from SA. Influxdb for database. It also shows live individual power consumption of each devices in the house through smart plugs HA integration and custom auto-entites.

Since we going all in on renewable energy, gas hobs were replaced with ‘real’ induction cooker (max 3000w on highest settings with all 4 burners on, enamel cast iron pots).

Average daily load 30kW (Home Assistant programmed to do load management automatically, with pv forecast, so 3 AC, Induction hob, water heater, microwave , airfryer etc, every device is connected and will never exceed the 6000W rating of the inverter)

100 percent off grid, ie Island mode, no physical connection to grid. The wife is happy, I’m happy.

If you need any guidance on home assistant coding for your set up, you can private message me.

Mrreed:
OR
620w panel from Fouani x6 <125k each
(the key to getting this price is if you have contact of electronics seller that buy other things from Fouani. You can liase with them to help you order this straight from company)

6kva Luxsun/cworth hybrid inverter circa 450k

The other materials will cost 160-200k if the panels will be on your roof and yiu stay in a bungalow.

If you don't mind DIY Battery, I can make 14.3kwh battery for you for 1. 650m

Workmanship, look for a competent person around you or hire from here.

tetralogyfallot:
100 n above

dollarnaira:
12v 146ah cost just 240k

fuckboys:
i went for bread, but as per the fans, the bread inverter fans are always running round the clock even with little or no loads on the inverter.
Don't know if it was designed that way.

Borgia1:
I've replied with my WhatsApp line

Borgia1:
Mail replied.

They are the cells from my "Zinox LifePo4" power pack.

Guyincna:
Happy Sunday all

Borgia1:
Hi all.
I have this set of battery cells from my lifepo4 pack for sale.
48 life cells in total.
Make me an offer.

Machiny:
do they have an official dealer?

ManAdii:
I don't this will be the cause. Even if there's partial contact the voltage of the battery is merely 12v DC. It can't cause a shock.

stuffs2002:
Good morning gurus in the house,

I am intending to change my 24V gel (lead-acid) type batteries to 48V LiFePO4 batteries and I came across some batteries that appear good on AliExpress. I am a bit sceptical about buying the 48V LiFePO4 batteries on AliExpress and shipping it down to Nigeria.

Please, does anyone have any experience on buying LiFePO4 batteries on AliExpress.

Ali express done Dey ship batteries, that would be nice but I doubt if you would get original batteries from Ali if at all they will ship it. Why going to sokoto when they are grade a batteries in your shokoto 😆

Machiny:
hybrid 2.5kw to 3.5kw inverter, which brand can be recommended? Need something rugged, durable and cost effective.

Dam5reey1:
I don tell you from get go. Change the breaker.

QuoteJust1nce:
My 1.5HP Panasonic Inverter (will find model later) drops to around 650W.

Queed:
New build: 3s32p, 864Wh, 500W pure sine wave power station with external battery support and monitoring via wifi. Just finished server and front end side. More updates coming in..

Dam5reey1:
I just dey put some things up jare. LFP wey I dey study daily since it got it 4 years. People go come dey quote AI or website that are trying to protect Dem self from warranty claims and all.

So they will recommend you to use their products like Eggs..

Anyways package back for anyone interested.
420k for the 3.6kwh Batteries

numericalguy:
I know what a relay is. I have a first degree in Electrical engineering and masters degree in Telecommunications engineering.

numericalguy:
Please can you suggest any relays I can use. I am good at fixing electrical things

bassdow:
...but there are MaintainNance Free Deep Cycle batteries na.

As for the so called war, I tell you say na person without personal experience go bother. Those wey Tubular or GEL / SLA / VRLA / AGM battery don serve, go hear all the praises rained on Lithium batteries, rush go buy am; hopefully they don't get disAppointed if they're Lucky or their useCase fits in.

Another set are FRESHERs (new Comers) to Solar world.

For the likes of Us wey don dey play with chemicals, from small, come still dey extract batteries from laptop batteries at less than age 18-years old dey build mini backUps, I wonder wetin those wey only got to know solar when it became popular thanks to APC regime wan tell us.

Personally, I decide when to go Tubular, and when to go SLA / GEL. Lithium has got it's place especially if size (Portability) & weight is a consideration - the more reason it's used in electric Cars / Bikes (weight factor) , Gadgets e.g Phones, PCs, etc (portability).

Mind you, Lead Acid batteries are much cheaper upfront than lithium based batteries. Similar reason a lot of people prefer buying Generator, than going Solar.
Lithium batteries can cost as much as 2 to 3 times more upFront.

What about Simplicity, and the fact it's been battle tested and rugged.


What about in places with much Heat ?

Abeg make I go chop. been battling with database data recovery for a new client since Sunday. To get client sweet, to collect Money sweet, but the work na die.

cyberjacker:
i greet ooo...where do most of you get your components from ...I want to by a buck converter but don't know any place apart from AliExpress...

BigDickProblems:
I did, but it was only pictures, and no explanations. I for instance have issues understanding the battery configurations and how to tell what type of BMS will work for the configurations you use(e.g When they say 4S2P). I understand perfectly what a parallel and series connection is from my Physics textbook, however, I have no idea about it when it comes to arranging multiple cells like you guys do.

I only think of it from one perspective (the way we were taught in Physics class), and this is where my problem is. Even if I come with an open mind it still confuses me.

For instance, I know how to explain to you that a 128Wh system using a 3.2V 5Ah batteries can be built this way (attached image). You can see that my batteries are arranged in series in two sections to get the 12.8V (I.e 3.2V *4) and keep 5AH the same for each cells. Then the two sections are now joined in parallel to keep the 12.8V and increase the AH to 10AH( I.e 5Ah * 2).

So this is my problem—it is the only perspective I see it from. But you guys arrange all these cells as a bundle and create connections that I can’t just understand no matter how hard I try. To make it worse I start hearing 4S2P, like how 🥲?)

Jabez55:
What is the recommended current to charge a 12v 4s 70ah battery pack?

okikigsm:
+234 701 789 3727 ibadan battery contact
He has all your needs

okikigsm:
Ok

I have contact in ibadan,ilorin,offa,ph.

Pick d best location for u .

okikigsm:
Chat him for battery 080 3469 457

okikigsm:
Chat him for battery 080 3469 457

okikigsm:
That one with idris is good, I have ordered that one too

Price : $40-45

Battery: get in touch with that same person you mention first.i don't know y he has abandoned this thread for so long.if he doesn't respond I will give u links

okikigsm:
Your location?

okikigsm:
For lithium ion/life4pod batteries diy.I recommend this tool among other tools needed.it will make your work certain and easy.

Battery capacity tester

If buy a battery,u should be able to confirm d capacity b4 using it.is 2ah really 2ah?