₦airaland Forum

earthrealm:
an idea popped into my head today.
the feasibility of setting up a smf/agm battery manufacturing plant in nigeria.we have the population, so demand is assured once the product is good. still researching on start up cost and other stuff.i wonder why the rich folk in nigeria hvnt done such long ago.

the automobile industry in nigeria is huge, with chinko batteries crapping out every 1yr or 2. a made in naija battery that cud last 2 to 4yrs would sell fast, then the solar /RE batteries

am open to suggestions/ideas/partnerships etc

NiyiOmoIyunade:
Give me a good Lithium or AGM or GEL any day and they will take a charge rate at 20 to 35% of their AH capacity without breaking a sweat. Heck I hear you can even charge Lithium from nearly empty to full within 1 or 2 hours.

earthrealm:
i just feel it would be too much pulses and sHI.t going on, mek e no come fry my CC ..do you have a CC hooked up to ur setup?.
i would hv felt more confident if it was just inverter alone, cos i believe it would be able to handle the pulses/transient voltages from the 2 devices

earthrealm:
hmmmm, i thought long and hard, and finally settled for the dsulphator, reasons being
1. system is totally off grid
2. batteries are flooded batts
3. since batts are hooked up to an epsolar cc with a 28day desulphation cycle, and the system is unmonitored, i felt the desulphation cycle might not be working on some of the dates. i hv also checked the batt voltages on several occasions and all but 1 batt had about .04v diff
anyway, we learn everyday, will consider removing the desulphator and trying the balancer and obverse for changes

mank1234:
Question for honourable lithium users:
Assuming one already has Morningstar MPPT charge controller and he or she decides to incorporate lithium battery, how will the charge controller charge the lithium battery since it doesn't not have settings for it? Does lithium also use three stage charging algorithm? How do you incorporate with existing infrastructure?

Ijeoma660:
Please I think I would be very much interested in trying them out, as I am about replacing my batteries. Can we talk IM or whatsapp?

zeestone99:
My oga long tym, u jst pack d lithium ba3 for ursef alone, pls give us reviews,since u didn't send me one for testing ..... Dat smal quantity u r talkin abt, are they ready for sale

mank1234:
The yield is impressive.
I'm wondering why folks would prefer to spend almost double on brands like solarworld!

Barezzi:
Quality?

NiyiOmoIyunade:
....... and the only thing that consumes PHCN credits are the bathroom water heaters when the Madam wants a hot bath,

makavele:
You are talking rubbish . .

makavele:
A potentiometer can be used to measure potential difference or electromotive force, put it as you want in a circuit.

makavele:
If you are a true science student, then you would know that a potentiometer is preferred than a voltmeter when it comes to
measuring voltage or more precisely, emf / Why?

makavele:
On the other hand, a potentiometer is an open-circuit measurement, no current is drawn, so it's more accurate for measuring emf or terminal voltage. it is also more sensitive than a voltmeter.

makavele:
SO when next I tell you that a potentiometer is used to measure voltage, just keep shut and don't argue.

makavele:
You are quoting textbook definition;
i am giving you the basics of what a potentiometer does . . .
What is the job of a potentiometer inside a voltmeter ?

makavele:
recipe for disaster . . . the last time i checked a potentiometer can only be used for measuring potential difference (voltage in layman's term) ; (hence the name: "potentio - meter" )across a circuit . . . adjusting the potentiometer will only increase or decrease the accuracy of the measurement . . . that's all. this is done to calibrate the meter when it is losing accuracy.
It cannot be used to reduce the voltage setpoint at which the charger goes into absorb or float . . if it were that easy . .
we could see ourselves opening up our inverters and adjusting the potentiometers in them . .
The voltage setpoints are embedded into the electronic chips/motherboards as CPU instructions;
that's why many ppl shy away from such chargers .. cos they kill batteries over time.

babaegun:
@dapsyra

If you can extract the api´s from the midnight classic website, then it is a piece of cake cause thats exactly how i upload to pvoutput.org. I pick the api´s from emoncms and upload to pvoutput.org

You´ll need a raspberry pi, install php on it, internet connection, schedule it on crontab and voila, you are up an running with your live data.

bigrovar:
Get a $30 raspberry pi if you have knowledge of Linux you can attach it to a USB dongle and have it upload the csv or relay the data real time. There are lots of python scripts online that can do this using pvoutput.org API. Nothing too hard if you set your mind to it.

pranil:
use the android app- https://play.google.com/store/apps/details?id=ca.farrelltonsolar.classic&hl=en ( use either a cheap or spare phone) or use Blustack on windows to run android app


https://www.youtube.com/watch?v=CbjlrrsU8T4&feature=youtu.be

foonshur:
please @ all.... are there battery monitors that can cut-off supply to load/charger at a pre-set voltage. and can anyone recommend same?

mank1234:
Which of the lithium technology is better? Is it better than NiFe? Read somewhere that NiFe has lifespan of 50yrs.
In terms of ease of use, longevity, pay-back time.

liquidcrystal73:
Just a test run, Panels are quadruple that power.
i believe series/parallel don’t matter for mppt
because power cannot be created or destroyed
just converted from one form to another
if u do the calculation; it amounts to the same power whether via series or parallel
i might be wrong though.

damola1:
BangDadaDang... lifepo4 batteries don land o

pranil , @jazzman2 , DUNKA , Oshomo12 , DMerciful , dapsyra , @damola1


Abeg who go help me successfully install am, based on experience of doing same before. Is there anything else to buy like the BMS?

I got; 12, and also I have a Magnum 4KVA and Outback 3kva, all 24V.

Specs of battery are:

Capacity: 210Ah
Height: 147 mm
Width: 429 mm
Length: 147 mm
Bolt Size: M8
Voltage nominal: 3.2V
Charge voltage cut-off: 3.6V
Discharging cut-off: 2.5V
Chemistry: LiFePO4

My location is: Behind F.O. filling station Ikeja.

GeorgeD1:
all,
so finally here comes the head-to-head comparison between midnite solar classic 150 cc
and the tristar mppt-60.

GeorgeD1:
8 ) scalability, ease of expansion, etc
perhaps the biggest selling point and over-aching advantage the midnite has over the tristar is its ability to produce
between 80 to 96 amps of charging current with a maximum solar array size of up to 4,300w at 48v. that means as a
user there is more room for expansion. you can start with a few panels and continue building up your system on an
incremental basis by adding panels after panels without worrying about changing/upgrading the charge controller.
the tristar on the other hand maxes out at 60 amps which translates to 2,300w at 48v. anything above this and the
current limit alarm set in.
- midnite classic is the winner for this round

GeorgeD1:
7) durability, reliability, etc
like i said in my earlier post, it's still early days yet with the midnite classic cc so i may not be in a good position to tell
how durable or reliable it may turn out to be. however, i can vouch for the tristar as a solid and reliable unit able to
withstand almost anything thrown at it. unless you deliberately set out to damage it, this cc is guaranteed to serve you
for many years to come.
- this round is inconclusive

Barezzi:
Seconded!

I'm sold.

https://play.google.com/store/apps/details?id=ca.farrelltonsolar.classic&hl=en

Have you tried the app in the link above?

Chuckdee:
Please who has contact of where to get Distilled water in Abuja?

samnaija:
Sounds complex. But interesting . Can you pls gives us a break down of the system. Battery size, capacity, numbers and the type flooded,voltage also.
your charge controller type and specs. My guy I am impressed.

Barezzi:
Afternoon bro,
How do you manage your heavy loads during bad weather? Do you play power police?
I have also implemented the 8am to 4pm strategy on my Heavy Loads DB, but the challenge is during bad weather
when my water pump kicks in, it pulls the battery voltage dangerously low.

I'm looking for an energy management system that can energize certain heavy loads at different solar production levels.

bigrovar:
That's not true. I for at least 3 people on this thread on there including. One who has logged over a MW of harvest

Barezzi:
Reading the same posts, what i see is a smear campaign to ruin the young man's business reputation.
This is a DIY thread as well as a marketplace. If the price offered no favour person, na to negotiate for a downward review or you waka to the next stall.

It's not worth all the hullabaloo...